The first image of our galaxy's central black hole and heaps more, TWIS. Black hole Revived tissue Algae power Weight loss Mars Games
ESO Director General Xavier Barcons is introducing us to proceedings…
Its size is about 52 microarcseconds in the sky, equivalent to imaging a donut on the Moon. Since the size of a black hole's shadow is related to its mass, we can use it to confirm that its mass is around 4 million times that of the Sun. This is exactly in agreement with Einstein's predictions from General Relativity!
The result is an interferometer that is 3 million times sharper than the human eye. For the image of Sgr A*, six terabytes of data were obtained – analysis of this data took several years and required the development of new tools.José L. Gómez of the Instituto de Astrofísica de Andalucía in Spain now tells us in greater detail how the eight telescopes of the Event Horizon Telescope work together to obtain observations.
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