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24-04-2013 | An artist’s impression of the PSR J0348+0432 binary system. The pulsar is extremely compact, leading to a strong distortion of space-time (illustrated by the green mesh). The white-dwarf companion is shown in light-blue - ©J. Antoniadis/MPIfR

A heavyweight for Einstein: Probing gravity where no one has done it before

An international research team led by astronomers from the Max Planck Institute for Radio Astronomy (MPIfR, Bonn, Germany) used a collection of large radio and optical telescopes to investigate a newly discovered pulsar, and its white dwarf companion. The observations revealed a system with unusual properties, which weighs twice as much as the Sun, making it the most massive neutron star to date. These findings partly result from the “BEACON” project led by ERC Starting grantee Dr Paulo Freire, and agree with Einstein’s theory on general relativity. They will be published in tomorrow’s issue of Science, April 26, 2013.