M60-UCD1: Tiny Galaxy, Supermassive Black Hole
Wednesday, September 17, 2014 - 15:31
in Astronomy & Space
An ultracompact dwarf galaxy known as M60-UCD1 harbors a supermassive black hole – the smallest galaxy known to contain such a massive light-sucking object. The astronomers used the Gemini North 8-meter optical-and-infrared telescope on Hawaii's Mauna Kea and photos taken by the Hubble Space Telescope to discover that M60-UCD1 has a black hole with a mass equal to 21 million suns. Their finding suggests plenty of other ultracompact dwarf galaxies likely also contain supermassive black holes – and those dwarfs may be the stripped remnants of larger galaxies that were torn apart during collisions with yet other galaxies. read more