Click on this to listen the sonification of the detection of an echo emitted by Sgr A* 200 years ago.
2 The scientists are from laboratories in Japan, the United States, Italy, Hong Kong, Canada, Russia, Germany, the Czech Republic, the United Kingdom, Finland, Spain, the Netherlands, China and France (Observatoire Astronomique de Strasbourg (CNRS/Université de Strasbourg) and Institut de Planétologie et d ’Astrophysique de Grenoble (CNRS/Université Grenoble Alpes)).
3 They combined this data with that obtained from the European Space Agency’s XMM-Newton and NASA’s Chandra missions.
4 Polarisation refers to the preferred direction of the oscillations of the electric field of a light wave.
Bibliography
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