Project acronym 9 SALT
Project Reassessing Ninth Century Philosophy. A Synchronic Approach to the Logical Traditions
Researcher (PI) Christophe Florian Erismann
Host Institution (HI) UNIVERSITAT WIEN
Call Details Consolidator Grant (CoG), SH5, ERC-2014-CoG
Summary This project aims at a better understanding of the philosophical richness of ninth century thought using the unprecedented and highly innovative method of the synchronic approach. The hypothesis directing this synchronic approach is that studying together in parallel the four main philosophical traditions of the century – i.e. Latin, Greek, Syriac and Arabic – will bring results that the traditional enquiry limited to one tradition alone can never reach. This implies pioneering a new methodology to overcome the compartmentalization of research which prevails nowadays. Using this method is only possible because the four conditions of applicability – comparable intellectual environment, common text corpus, similar methodological perspective, commensurable problems – are fulfilled. The ninth century, a time of cultural renewal in the Carolingian, Byzantine and Abbasid empires, possesses the remarkable characteristic – which ensures commensurability – that the same texts, namely the writings of Aristotelian logic (mainly Porphyry’s Isagoge and Aristotle’s Categories) were read and commented upon in Latin, Greek, Syriac and Arabic alike.
Logic is fundamental to philosophical enquiry. The contested question is the human capacity to rationalise, analyse and describe the sensible reality, to understand the ontological structure of the world, and to define the types of entities which exist. The use of this unprecedented synchronic approach will allow us a deeper understanding of the positions, a clear identification of the a priori postulates of the philosophical debates, and a critical evaluation of the arguments used. It provides a unique opportunity to compare the different traditions and highlight the heritage which is common, to stress the specificities of each tradition when tackling philosophical issues and to discover the doctrinal results triggered by their mutual interactions, be they constructive (scholarly exchanges) or polemic (religious controversies).
Summary
This project aims at a better understanding of the philosophical richness of ninth century thought using the unprecedented and highly innovative method of the synchronic approach. The hypothesis directing this synchronic approach is that studying together in parallel the four main philosophical traditions of the century – i.e. Latin, Greek, Syriac and Arabic – will bring results that the traditional enquiry limited to one tradition alone can never reach. This implies pioneering a new methodology to overcome the compartmentalization of research which prevails nowadays. Using this method is only possible because the four conditions of applicability – comparable intellectual environment, common text corpus, similar methodological perspective, commensurable problems – are fulfilled. The ninth century, a time of cultural renewal in the Carolingian, Byzantine and Abbasid empires, possesses the remarkable characteristic – which ensures commensurability – that the same texts, namely the writings of Aristotelian logic (mainly Porphyry’s Isagoge and Aristotle’s Categories) were read and commented upon in Latin, Greek, Syriac and Arabic alike.
Logic is fundamental to philosophical enquiry. The contested question is the human capacity to rationalise, analyse and describe the sensible reality, to understand the ontological structure of the world, and to define the types of entities which exist. The use of this unprecedented synchronic approach will allow us a deeper understanding of the positions, a clear identification of the a priori postulates of the philosophical debates, and a critical evaluation of the arguments used. It provides a unique opportunity to compare the different traditions and highlight the heritage which is common, to stress the specificities of each tradition when tackling philosophical issues and to discover the doctrinal results triggered by their mutual interactions, be they constructive (scholarly exchanges) or polemic (religious controversies).
Max ERC Funding
1 998 566 €
Duration
Start date: 2015-09-01, End date: 2020-08-31
Project acronym AFRISCREENWORLDS
Project African Screen Worlds: Decolonising Film and Screen Studies
Researcher (PI) Lindiwe Dovey
Host Institution (HI) SCHOOL OF ORIENTAL AND AFRICAN STUDIES ROYAL CHARTER
Call Details Consolidator Grant (CoG), SH5, ERC-2018-COG
Summary A half century since it came into existence, the discipline of Film and Screen Studies remains mostly Eurocentric in its historical, theoretical and critical frameworks. Although “world cinema” and “transnational cinema” scholars have attempted to broaden its canon and frameworks, several major problems persist. Films and scholarship by Africans in particular, and by people of colour in general, are frequently marginalised if not altogether excluded. This prevents exciting exchanges that could help to re-envision Film and Screen Studies for the twenty-first century, in an era in which greater access to the technological means of making films, and circulating them on a range of screens, means that dynamic “screen worlds” are developing at a rapid rate. AFRISCREENWORLDS will study these “screen worlds” (in both their textual forms and industrial structures), with a focus on Africa, as a way of centring the most marginalised regional cinema. We will also elaborate comparative studies of global “screen worlds” – and, in particular, “screen worlds” in the Global South – exploring their similarities, differences, and parallel developments. We will respond to the exclusions of Film and Screen Studies not only in scholarly ways – through conferences and publications – but also in creative and activist ways – through drawing on cutting-edge creative research methodologies (such as audiovisual criticism and filmmaking) and through helping to decolonise Film and Screen Studies (through the production of ‘toolkits’ on how to make curricula, syllabi, and teaching more globally representative and inclusive). On a theoretical level, we will make an intervention through considering how the concept of “screen worlds” is better equipped than “world cinema” or “transnational cinema” to explore the complexities of audiovisual narratives, and their production and circulation in our contemporary moment, in diverse contexts throughout the globe.
Summary
A half century since it came into existence, the discipline of Film and Screen Studies remains mostly Eurocentric in its historical, theoretical and critical frameworks. Although “world cinema” and “transnational cinema” scholars have attempted to broaden its canon and frameworks, several major problems persist. Films and scholarship by Africans in particular, and by people of colour in general, are frequently marginalised if not altogether excluded. This prevents exciting exchanges that could help to re-envision Film and Screen Studies for the twenty-first century, in an era in which greater access to the technological means of making films, and circulating them on a range of screens, means that dynamic “screen worlds” are developing at a rapid rate. AFRISCREENWORLDS will study these “screen worlds” (in both their textual forms and industrial structures), with a focus on Africa, as a way of centring the most marginalised regional cinema. We will also elaborate comparative studies of global “screen worlds” – and, in particular, “screen worlds” in the Global South – exploring their similarities, differences, and parallel developments. We will respond to the exclusions of Film and Screen Studies not only in scholarly ways – through conferences and publications – but also in creative and activist ways – through drawing on cutting-edge creative research methodologies (such as audiovisual criticism and filmmaking) and through helping to decolonise Film and Screen Studies (through the production of ‘toolkits’ on how to make curricula, syllabi, and teaching more globally representative and inclusive). On a theoretical level, we will make an intervention through considering how the concept of “screen worlds” is better equipped than “world cinema” or “transnational cinema” to explore the complexities of audiovisual narratives, and their production and circulation in our contemporary moment, in diverse contexts throughout the globe.
Max ERC Funding
1 985 578 €
Duration
Start date: 2019-06-01, End date: 2024-05-31
Project acronym ALTERUMMA
Project Creating an Alternative umma: Clerical Authority and Religio-political Mobilisation in Transnational Shii Islam
Researcher (PI) Oliver Paul SCHARBRODT
Host Institution (HI) THE UNIVERSITY OF BIRMINGHAM
Call Details Consolidator Grant (CoG), SH5, ERC-2016-COG
Summary This interdisciplinary project investigates the transformation of Shii Islam in the Middle East and Europe since the 1950s. The project examines the formation of modern Shii communal identities and the role Shii clerical authorities and their transnational networks have played in their religio-political mobilisation. The volatile situation post-Arab Spring, the rise of militant movements such as ISIS and the sectarianisation of geopolitical conflicts in the Middle East have intensified efforts to forge distinct Shii communal identities and to conceive Shii Muslims as part of an alternative umma (Islamic community). The project focusses on Iran, Iraq and significant but unexplored diasporic links to Syria, Kuwait and Britain. In response to the rise of modern nation-states in the Middle East, Shii clerical authorities resorted to a wide range of activities: (a) articulating intellectual responses to the ideologies underpinning modern Middle Eastern nation-states, (b) forming political parties and other platforms of socio-political activism and (c) using various forms of cultural production by systematising and promoting Shii ritual practices and utilising visual art, poetry and new media.
The project yields a perspectival shift on the factors that led to Shii communal mobilisation by:
- Analysing unacknowledged intellectual responses of Shii clerical authorities to the secular or sectarian ideologies of post-colonial nation-states and to the current sectarianisation of geopolitics in the Middle East.
- Emphasising the central role of diasporic networks in the Middle East and Europe in mobilising Shii communities and in influencing discourses and agendas of clerical authorities based in Iraq and Iran.
- Exploring new modes of cultural production in the form of a modern Shii aesthetics articulated in ritual practices, visual art, poetry and new media and thus creating a more holistic narrative on Shii religio-political mobilisation.
Summary
This interdisciplinary project investigates the transformation of Shii Islam in the Middle East and Europe since the 1950s. The project examines the formation of modern Shii communal identities and the role Shii clerical authorities and their transnational networks have played in their religio-political mobilisation. The volatile situation post-Arab Spring, the rise of militant movements such as ISIS and the sectarianisation of geopolitical conflicts in the Middle East have intensified efforts to forge distinct Shii communal identities and to conceive Shii Muslims as part of an alternative umma (Islamic community). The project focusses on Iran, Iraq and significant but unexplored diasporic links to Syria, Kuwait and Britain. In response to the rise of modern nation-states in the Middle East, Shii clerical authorities resorted to a wide range of activities: (a) articulating intellectual responses to the ideologies underpinning modern Middle Eastern nation-states, (b) forming political parties and other platforms of socio-political activism and (c) using various forms of cultural production by systematising and promoting Shii ritual practices and utilising visual art, poetry and new media.
The project yields a perspectival shift on the factors that led to Shii communal mobilisation by:
- Analysing unacknowledged intellectual responses of Shii clerical authorities to the secular or sectarian ideologies of post-colonial nation-states and to the current sectarianisation of geopolitics in the Middle East.
- Emphasising the central role of diasporic networks in the Middle East and Europe in mobilising Shii communities and in influencing discourses and agendas of clerical authorities based in Iraq and Iran.
- Exploring new modes of cultural production in the form of a modern Shii aesthetics articulated in ritual practices, visual art, poetry and new media and thus creating a more holistic narrative on Shii religio-political mobilisation.
Max ERC Funding
1 952 374 €
Duration
Start date: 2018-01-01, End date: 2022-12-31
Project acronym ArcheoDyn
Project Globular clusters as living fossils of the past of galaxies
Researcher (PI) Petrus VAN DE VEN
Host Institution (HI) UNIVERSITAT WIEN
Call Details Consolidator Grant (CoG), PE9, ERC-2016-COG
Summary Globular clusters (GCs) are enigmatic objects that hide a wealth of information. They are the living fossils of the history of their native galaxies and the record keepers of the violent events that made them change their domicile. This proposal aims to mine GCs as living fossils of galaxy evolution to address fundamental questions in astrophysics: (1) Do satellite galaxies merge as predicted by the hierarchical build-up of galaxies? (2) Which are the seeds of supermassive black holes in the centres of galaxies? (3) How did star formation originate in the earliest phases of galaxy formation? To answer these questions, novel population-dependent dynamical modelling techniques are required, whose development the PI has led over the past years. This uniquely positions him to take full advantage of the emerging wealth of chemical and kinematical data on GCs.
Following the tidal disruption of satellite galaxies, their dense GCs, and maybe even their nuclei, are left as the most visible remnants in the main galaxy. The hierarchical build-up of their new host galaxy can thus be unearthed by recovering the GCs’ orbits. However, currently it is unclear which of the GCs are accretion survivors. Actually, the existence of a central intermediate mass black hole (IMBH) or of multiple stellar populations in GCs might tell which ones are accreted. At the same time, detection of IMBHs is important as they are predicted seeds for supermassive black holes in galaxies; while the multiple stellar populations in GCs are vital witnesses to the extreme modes of star formation in the early Universe. However, for every putative dynamical IMBH detection so far there is a corresponding non-detection; also the origin of multiple stellar populations in GCs still lacks any uncontrived explanation. The synergy of novel techniques and exquisite data proposed here promises a breakthrough in this emerging field of dynamical archeology with GCs as living fossils of the past of galaxies.
Summary
Globular clusters (GCs) are enigmatic objects that hide a wealth of information. They are the living fossils of the history of their native galaxies and the record keepers of the violent events that made them change their domicile. This proposal aims to mine GCs as living fossils of galaxy evolution to address fundamental questions in astrophysics: (1) Do satellite galaxies merge as predicted by the hierarchical build-up of galaxies? (2) Which are the seeds of supermassive black holes in the centres of galaxies? (3) How did star formation originate in the earliest phases of galaxy formation? To answer these questions, novel population-dependent dynamical modelling techniques are required, whose development the PI has led over the past years. This uniquely positions him to take full advantage of the emerging wealth of chemical and kinematical data on GCs.
Following the tidal disruption of satellite galaxies, their dense GCs, and maybe even their nuclei, are left as the most visible remnants in the main galaxy. The hierarchical build-up of their new host galaxy can thus be unearthed by recovering the GCs’ orbits. However, currently it is unclear which of the GCs are accretion survivors. Actually, the existence of a central intermediate mass black hole (IMBH) or of multiple stellar populations in GCs might tell which ones are accreted. At the same time, detection of IMBHs is important as they are predicted seeds for supermassive black holes in galaxies; while the multiple stellar populations in GCs are vital witnesses to the extreme modes of star formation in the early Universe. However, for every putative dynamical IMBH detection so far there is a corresponding non-detection; also the origin of multiple stellar populations in GCs still lacks any uncontrived explanation. The synergy of novel techniques and exquisite data proposed here promises a breakthrough in this emerging field of dynamical archeology with GCs as living fossils of the past of galaxies.
Max ERC Funding
1 999 250 €
Duration
Start date: 2017-09-01, End date: 2022-08-31
Project acronym ARCTIC CULT
Project ARCTIC CULTURES: SITES OF COLLECTION IN THE FORMATION OF THE EUROPEAN AND AMERICAN NORTHLANDS
Researcher (PI) Richard Charles POWELL
Host Institution (HI) THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
Call Details Consolidator Grant (CoG), SH5, ERC-2016-COG
Summary The Arctic has risen to global attention in recent years, as it has been reconfigured through debates about global environmental change, resource extraction and disputes over sovereign rights. Within these discourses, little attention has been paid to the cultures of the Arctic. Indeed, it often seems as if the Circumpolar Arctic in global public understanding remains framed as a 'natural region' - that is, a place where the environment dominates the creation of culture. This framing has consequences for the region, because through this the Arctic becomes constructed as a space where people are absent. This proposal aims to discover how and why this might be so.
The proposal argues that this construction of the Arctic emerged from the exploration of the region by Europeans and North Americans and their contacts with indigenous people from the middle of the eighteenth century. Particular texts, cartographic representations and objects were collected and returned to sites like London, Copenhagen, Berlin and Philadelphia. The construction of the Arctic thereby became entwined within the growth of colonial museum cultures and, indeed, western modernity. This project aims to delineate the networks and collecting cultures involved in this creation of Arctic Cultures. It will bring repositories in colonial metropoles into dialogue with sites of collection in the Arctic by tracing the contexts of discovery and memorialisation. In doing so, it aspires to a new understanding of the consequences of certain forms of colonial representation for debates about the Circumpolar Arctic today.
The project involves research by the Principal Investigator and four Post Doctoral Researchers at museums, archives, libraries and repositories across Europe and North America, as well as in Greenland and the Canadian Arctic. A Project Assistant based in Oxford will help facilitate the completion of the research.
Summary
The Arctic has risen to global attention in recent years, as it has been reconfigured through debates about global environmental change, resource extraction and disputes over sovereign rights. Within these discourses, little attention has been paid to the cultures of the Arctic. Indeed, it often seems as if the Circumpolar Arctic in global public understanding remains framed as a 'natural region' - that is, a place where the environment dominates the creation of culture. This framing has consequences for the region, because through this the Arctic becomes constructed as a space where people are absent. This proposal aims to discover how and why this might be so.
The proposal argues that this construction of the Arctic emerged from the exploration of the region by Europeans and North Americans and their contacts with indigenous people from the middle of the eighteenth century. Particular texts, cartographic representations and objects were collected and returned to sites like London, Copenhagen, Berlin and Philadelphia. The construction of the Arctic thereby became entwined within the growth of colonial museum cultures and, indeed, western modernity. This project aims to delineate the networks and collecting cultures involved in this creation of Arctic Cultures. It will bring repositories in colonial metropoles into dialogue with sites of collection in the Arctic by tracing the contexts of discovery and memorialisation. In doing so, it aspires to a new understanding of the consequences of certain forms of colonial representation for debates about the Circumpolar Arctic today.
The project involves research by the Principal Investigator and four Post Doctoral Researchers at museums, archives, libraries and repositories across Europe and North America, as well as in Greenland and the Canadian Arctic. A Project Assistant based in Oxford will help facilitate the completion of the research.
Max ERC Funding
1 996 250 €
Duration
Start date: 2017-10-01, End date: 2022-09-30
Project acronym Asterochronometry
Project Galactic archeology with high temporal resolution
Researcher (PI) Andrea MIGLIO
Host Institution (HI) THE UNIVERSITY OF BIRMINGHAM
Call Details Consolidator Grant (CoG), PE9, ERC-2017-COG
Summary The Milky Way is a complex system, with dynamical and chemical substructures, where several competing processes such as mergers, internal secular evolution, gas accretion and gas flows take place. To study in detail how such a giant spiral galaxy was formed and evolved, we need to reconstruct the sequence of its main formation events with high (~10%) temporal resolution.
Asterochronometry will determine accurate, precise ages for tens of thousands of stars in the Galaxy. We will take an approach distinguished by a number of key aspects including, developing novel star-dating methods that fully utilise the potential of individual pulsation modes, coupled with a careful appraisal of systematic uncertainties on age deriving from our limited understanding of stellar physics.
We will then capitalise on opportunities provided by the timely availability of astrometric, spectroscopic, and asteroseismic data to build and data-mine chrono-chemo-dynamical maps of regions of the Milky Way probed by the space missions CoRoT, Kepler, K2, and TESS. We will quantify, by comparison with predictions of chemodynamical models, the relative importance of various processes which play a role in shaping the Galaxy, for example mergers and dynamical processes. We will use chrono-chemical tagging to look for evidence of aggregates, and precise and accurate ages to reconstruct the early star formation history of the Milky Way’s main constituents.
The Asterochronometry project will also provide stringent observational tests of stellar structure and answer some of the long-standing open questions in stellar modelling (e.g. efficiency of transport processes, mass loss on the giant branch, the occurrence of products of coalescence / mass exchange). These tests will improve our ability to determine stellar ages and chemical yields, with wide impact e.g. on the characterisation and ensemble studies of exoplanets, on evolutionary population synthesis, integrated colours and thus ages of galaxies.
Summary
The Milky Way is a complex system, with dynamical and chemical substructures, where several competing processes such as mergers, internal secular evolution, gas accretion and gas flows take place. To study in detail how such a giant spiral galaxy was formed and evolved, we need to reconstruct the sequence of its main formation events with high (~10%) temporal resolution.
Asterochronometry will determine accurate, precise ages for tens of thousands of stars in the Galaxy. We will take an approach distinguished by a number of key aspects including, developing novel star-dating methods that fully utilise the potential of individual pulsation modes, coupled with a careful appraisal of systematic uncertainties on age deriving from our limited understanding of stellar physics.
We will then capitalise on opportunities provided by the timely availability of astrometric, spectroscopic, and asteroseismic data to build and data-mine chrono-chemo-dynamical maps of regions of the Milky Way probed by the space missions CoRoT, Kepler, K2, and TESS. We will quantify, by comparison with predictions of chemodynamical models, the relative importance of various processes which play a role in shaping the Galaxy, for example mergers and dynamical processes. We will use chrono-chemical tagging to look for evidence of aggregates, and precise and accurate ages to reconstruct the early star formation history of the Milky Way’s main constituents.
The Asterochronometry project will also provide stringent observational tests of stellar structure and answer some of the long-standing open questions in stellar modelling (e.g. efficiency of transport processes, mass loss on the giant branch, the occurrence of products of coalescence / mass exchange). These tests will improve our ability to determine stellar ages and chemical yields, with wide impact e.g. on the characterisation and ensemble studies of exoplanets, on evolutionary population synthesis, integrated colours and thus ages of galaxies.
Max ERC Funding
1 958 863 €
Duration
Start date: 2018-04-01, End date: 2023-03-31
Project acronym AutoRecon
Project Molecular mechanisms of autophagosome formation during selective autophagy
Researcher (PI) Sascha Martens
Host Institution (HI) UNIVERSITAT WIEN
Call Details Consolidator Grant (CoG), LS3, ERC-2014-CoG
Summary I propose to study how eukaryotic cells generate autophagosomes, organelles bounded by a double membrane. These are formed during autophagy and mediate the degradation of cytoplasmic substances within the lysosomal compartment. Autophagy thereby protects the organism from pathological conditions such as neurodegeneration, cancer and infections. Many core factors required for autophagosome formation have been identified but the order in which they act and their mode of action is still unclear. We will use a combination of biochemical and cell biological approaches to elucidate the choreography and mechanism of these core factors. In particular, we will focus on selective autophagy and determine how the autophagic machinery generates an autophagosome that selectively contains the cargo.
To this end we will focus on the cytoplasm-to-vacuole-targeting pathway in S. cerevisiae that mediates the constitutive delivery of the prApe1 enzyme into the vacuole. We will use cargo mimetics or prApe1 complexes in combination with purified autophagy proteins and vesicles to reconstitute the process and so determine which factors are both necessary and sufficient for autophagosome formation, as well as elucidating their mechanism of action.
In parallel we will study selective autophagosome formation in human cells. This will reveal common principles and special adaptations. In particular, we will use cell lysates from genome-edited cells in combination with purified autophagy proteins to reconstitute selective autophagosome formation around ubiquitin-positive cargo material. The insights and hypotheses obtained from these reconstituted systems will be validated using cell biological approaches.
Taken together, our experiments will allow us to delineate the major steps of autophagosome formation during selective autophagy. Our results will yield detailed insights into how cells form and shape organelles in a de novo manner, which is major question in cell- and developmental biology.
Summary
I propose to study how eukaryotic cells generate autophagosomes, organelles bounded by a double membrane. These are formed during autophagy and mediate the degradation of cytoplasmic substances within the lysosomal compartment. Autophagy thereby protects the organism from pathological conditions such as neurodegeneration, cancer and infections. Many core factors required for autophagosome formation have been identified but the order in which they act and their mode of action is still unclear. We will use a combination of biochemical and cell biological approaches to elucidate the choreography and mechanism of these core factors. In particular, we will focus on selective autophagy and determine how the autophagic machinery generates an autophagosome that selectively contains the cargo.
To this end we will focus on the cytoplasm-to-vacuole-targeting pathway in S. cerevisiae that mediates the constitutive delivery of the prApe1 enzyme into the vacuole. We will use cargo mimetics or prApe1 complexes in combination with purified autophagy proteins and vesicles to reconstitute the process and so determine which factors are both necessary and sufficient for autophagosome formation, as well as elucidating their mechanism of action.
In parallel we will study selective autophagosome formation in human cells. This will reveal common principles and special adaptations. In particular, we will use cell lysates from genome-edited cells in combination with purified autophagy proteins to reconstitute selective autophagosome formation around ubiquitin-positive cargo material. The insights and hypotheses obtained from these reconstituted systems will be validated using cell biological approaches.
Taken together, our experiments will allow us to delineate the major steps of autophagosome formation during selective autophagy. Our results will yield detailed insights into how cells form and shape organelles in a de novo manner, which is major question in cell- and developmental biology.
Max ERC Funding
1 999 640 €
Duration
Start date: 2016-03-01, End date: 2021-02-28
Project acronym AWESoMeStars
Project Accretion, Winds, and Evolution of Spins and Magnetism of Stars
Researcher (PI) Sean Patrick Matt
Host Institution (HI) THE UNIVERSITY OF EXETER
Call Details Consolidator Grant (CoG), PE9, ERC-2015-CoG
Summary This project focuses on Sun-like stars, which possess convective envelopes and universally exhibit magnetic activity (in the mass range 0.1 to 1.3 MSun). The rotation of these stars influences their internal structure, energy and chemical transport, and magnetic field generation, as well as their external magnetic activity and environmental interactions. Due to the huge range of timescales, spatial scales, and physics involved, understanding how each of these processes relate to each other and to the long-term evolution remains an enormous challenge in astrophysics. To face this challenge, the AWESoMeStars project will develop a comprehensive, physical picture of the evolution of stellar rotation, magnetic activity, mass loss, and accretion.
In doing so, we will
(1) Discover how stars lose the vast majority of their angular momentum, which happens in the accretion phase
(2) Explain the observed rotation-activity relationship and saturation in terms of the evolution of magnetic properties & coronal physics
(3) Characterize coronal heating and mass loss across the full range of mass & age
(4) Explain the Skumanich (1972) relationship and distributions of spin rates observed in young clusters & old field stars
(5) Develop physics-based gyrochronology as a tool for using rotation rates to constrain stellar ages.
We will accomplish these goals using a fundamentally new and multi-faceted approach, which combines the power of multi-dimensional MHD simulations with long-timescale rotational-evolution models. Specifically, we will develop a next generation of MHD simulations of both star-disk interactions and stellar winds, to model stars over the full range of mass & age, and to characterize how magnetically active stars impact their environments. Simultaneously, we will create a new class of rotational-evolution models that include external torques derived from our simulations, compute the evolution of spin rates of entire star clusters, & compare with observations.
Summary
This project focuses on Sun-like stars, which possess convective envelopes and universally exhibit magnetic activity (in the mass range 0.1 to 1.3 MSun). The rotation of these stars influences their internal structure, energy and chemical transport, and magnetic field generation, as well as their external magnetic activity and environmental interactions. Due to the huge range of timescales, spatial scales, and physics involved, understanding how each of these processes relate to each other and to the long-term evolution remains an enormous challenge in astrophysics. To face this challenge, the AWESoMeStars project will develop a comprehensive, physical picture of the evolution of stellar rotation, magnetic activity, mass loss, and accretion.
In doing so, we will
(1) Discover how stars lose the vast majority of their angular momentum, which happens in the accretion phase
(2) Explain the observed rotation-activity relationship and saturation in terms of the evolution of magnetic properties & coronal physics
(3) Characterize coronal heating and mass loss across the full range of mass & age
(4) Explain the Skumanich (1972) relationship and distributions of spin rates observed in young clusters & old field stars
(5) Develop physics-based gyrochronology as a tool for using rotation rates to constrain stellar ages.
We will accomplish these goals using a fundamentally new and multi-faceted approach, which combines the power of multi-dimensional MHD simulations with long-timescale rotational-evolution models. Specifically, we will develop a next generation of MHD simulations of both star-disk interactions and stellar winds, to model stars over the full range of mass & age, and to characterize how magnetically active stars impact their environments. Simultaneously, we will create a new class of rotational-evolution models that include external torques derived from our simulations, compute the evolution of spin rates of entire star clusters, & compare with observations.
Max ERC Funding
2 206 205 €
Duration
Start date: 2016-07-01, End date: 2021-06-30
Project acronym BAHAMAS
Project A holistic approach to large-scale structure cosmology
Researcher (PI) Ian MCCARTHY
Host Institution (HI) LIVERPOOL JOHN MOORES UNIVERSITY
Call Details Consolidator Grant (CoG), PE9, ERC-2017-COG
Summary The standard model of cosmology, the ɅCDM model, is remarkably successful at explaining a wide range of observations of our Universe. However, it is now being subjected to much more stringent tests than ever before, and recent large-scale structure (LSS) measurements appear to be in tension with its predictions. Is this tension signalling that new physics is required? For example, time-varying dark energy, or perhaps a modified theory of gravity? A contribution from massive neutrinos? Before coming to such bold conclusions we must be certain that all of the important systematic errors in the LSS tests have been accounted for.
Presently, the largest source of systematic uncertainty is from the modelling of complicated astrophysical phenomena associated with galaxy formation. In particular, energetic feedback processes associated with star formation and black hole growth can heat and expel gas from collapsed structures and modify the large-scale distribution of matter. Furthermore, the LSS field is presently separated into many sub-fields (each using different models, that usually neglect feedback), preventing a coherent analysis.
Cosmological hydrodynamical simulations (are the only method which) can follow all the relevant matter components and self-consistently capture the effects of feedback. I have been leading the development of large-scale simulations with physically-motivated prescriptions for feedback that are unrivalled in their ability to reproduce the observed properties of massive systems. With ERC support, I will build a team to exploit these developments, to produce a suite of simulations designed specifically for LSS cosmology applications with the effects of feedback realistically accounted for and which will allow us to unite the different LSS tests. My team and I will make the first self-consistent comparisons with the full range of LSS cosmology tests, and critically assess the evidence for physics beyond the standard model.
Summary
The standard model of cosmology, the ɅCDM model, is remarkably successful at explaining a wide range of observations of our Universe. However, it is now being subjected to much more stringent tests than ever before, and recent large-scale structure (LSS) measurements appear to be in tension with its predictions. Is this tension signalling that new physics is required? For example, time-varying dark energy, or perhaps a modified theory of gravity? A contribution from massive neutrinos? Before coming to such bold conclusions we must be certain that all of the important systematic errors in the LSS tests have been accounted for.
Presently, the largest source of systematic uncertainty is from the modelling of complicated astrophysical phenomena associated with galaxy formation. In particular, energetic feedback processes associated with star formation and black hole growth can heat and expel gas from collapsed structures and modify the large-scale distribution of matter. Furthermore, the LSS field is presently separated into many sub-fields (each using different models, that usually neglect feedback), preventing a coherent analysis.
Cosmological hydrodynamical simulations (are the only method which) can follow all the relevant matter components and self-consistently capture the effects of feedback. I have been leading the development of large-scale simulations with physically-motivated prescriptions for feedback that are unrivalled in their ability to reproduce the observed properties of massive systems. With ERC support, I will build a team to exploit these developments, to produce a suite of simulations designed specifically for LSS cosmology applications with the effects of feedback realistically accounted for and which will allow us to unite the different LSS tests. My team and I will make the first self-consistent comparisons with the full range of LSS cosmology tests, and critically assess the evidence for physics beyond the standard model.
Max ERC Funding
1 725 982 €
Duration
Start date: 2018-06-01, End date: 2023-05-31
Project acronym BuildingPlanS
Project Building planetary systems: linking architectures with formation
Researcher (PI) Richard David Alexander
Host Institution (HI) UNIVERSITY OF LEICESTER
Call Details Consolidator Grant (CoG), PE9, ERC-2015-CoG
Summary The last few years have seen an explosion in our knowledge of extra-solar planetary systems. However, most exoplanetary systems look nothing like our own: we see “hot Jupiters” which take just days to orbit their parent stars, planets which meander across entire solar systems on highly eccentric orbits, and even planets orbiting twin, binary suns. These planets formed in relatively homogenous discs of cold dust and gas around young, newly-formed stars, but we do not yet understand how this extraordinarily diverse range of planetary architectures was assembled.
BuildingPlanS will establish how the observed architectures of exoplanets link to the physics of their formation. My team will build comprehensive models of the assembly of planetary systems, in order to:
1) understand how systems of giant planets are built.
2) understand the assembly of compact, tightly-packed planetary systems.
3) determine where and when planets form around binary stars.
By focusing on the three main types of known planetary systems we will determine how key physical processes operate in a wide variety of different environments, and build up a detailed understanding of how planetary systems form and evolve. Recently I have played a key role in developing a robust theory of how young, gas-rich protoplanetary discs evolve; this project will establish how these new ideas shape the formation and evolution of planetary systems. My team will consider how forming and newly-formed planets interact with their parent discs, in order to understand the architectures of young planetary systems. We will then follow how these young systems evolve to maturity over billions of years, and test our results against both new observations of planet-forming discs and our ever-growing census of exoplanetary systems. The overall aim of BuildingPlanS is to link exoplanet architectures with their formation and establish a global picture of how planetary systems are built.
Summary
The last few years have seen an explosion in our knowledge of extra-solar planetary systems. However, most exoplanetary systems look nothing like our own: we see “hot Jupiters” which take just days to orbit their parent stars, planets which meander across entire solar systems on highly eccentric orbits, and even planets orbiting twin, binary suns. These planets formed in relatively homogenous discs of cold dust and gas around young, newly-formed stars, but we do not yet understand how this extraordinarily diverse range of planetary architectures was assembled.
BuildingPlanS will establish how the observed architectures of exoplanets link to the physics of their formation. My team will build comprehensive models of the assembly of planetary systems, in order to:
1) understand how systems of giant planets are built.
2) understand the assembly of compact, tightly-packed planetary systems.
3) determine where and when planets form around binary stars.
By focusing on the three main types of known planetary systems we will determine how key physical processes operate in a wide variety of different environments, and build up a detailed understanding of how planetary systems form and evolve. Recently I have played a key role in developing a robust theory of how young, gas-rich protoplanetary discs evolve; this project will establish how these new ideas shape the formation and evolution of planetary systems. My team will consider how forming and newly-formed planets interact with their parent discs, in order to understand the architectures of young planetary systems. We will then follow how these young systems evolve to maturity over billions of years, and test our results against both new observations of planet-forming discs and our ever-growing census of exoplanetary systems. The overall aim of BuildingPlanS is to link exoplanet architectures with their formation and establish a global picture of how planetary systems are built.
Max ERC Funding
1 945 721 €
Duration
Start date: 2016-06-01, End date: 2021-05-31
