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Black hole CO-0.40. Astronomical research

Black hole CO-0.40. Astronomical research



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Until now two types of black holes were known, classified according to their size. On the one hand, black holes of stellar mass, which are formed after gigantic explosions of very massive stars. On the other hand, supermassive black holes, which are usually found in the center of galaxies.

Thanks to the research carried out by the Nobeyama radio telescope, a team of astronomers has detected, in the center of the Milky Way, signs of an invisible black hole with a mass one hundred thousand times greater than that of the Sun. This group of astronomers, led by Tomoharu Oka, a professor at Keio University in Japan, believes it could be a black hole of intermediate mass.

This enigmatic cloud of gas has received the name of CO-0.40, and is 200 light years away from the center of the Milky Way. What makes CO-0.40 so unusual is its speed dispersion, which is surprisingly wide. The cloud that forms this hole contains a gas with a very wide range of speeds.

This black hole of intermediate mass was discovered thanks to two radio telescopes, the Nobeyama 45m Telescope in Japan, and the ASTE Telescope in Chile. Both were operated from the National Astronomical Observatory of Japan.

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