Wednesday, September 25, 2013

Newscenter Update: Hubble and Chandra Find Evidence for Densest Galaxy in Nearby Universe

September 24, 2013
Ultra-compact Dwarf Galaxy M60-UCD1
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Hubble and Chandra Find Evidence for Densest Galaxy in Nearby Universe

Astronomers may have found the densest galaxy in the nearby universe. The galaxy, known as M60-UCD1, is located near a massive elliptical galaxy NGC 4649, also called M60, about 54 million light-years from Earth. This composite image shows M60 and the region around it, where data from NASA's Chandra X-ray Observatory are pink and data from NASA's Hubble Space Telescope are red, green, and blue. The Chandra image shows hot gas and double stars containing black holes and neutron stars, and the Hubble image reveals stars in M60 and neighboring galaxies including M60-UCD1. The arrow points to M60-UCD1.

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