NASA / ESA’s Hubble Space Telescope captured luminous blue compact galaxy (BCG) ESO 185-IG013 after a recent merger. BCGs get their color from intense bursts of star formation, setting them apart from other high-starburst galaxies that emit more infrared light.
ESO 185-IG013 was captured by Hubble in ultraviolet, visible, and infrared wavelengths to reveal details about its past. Astronomers discovered hundreds of young star clusters, many younger than 100 million years, populating the galaxy. They predict that many of these youngest clusters will not last, since they often perish after expelling too much of their gas. Since you see a large number of young star clusters here, this indicates that ESO 185-IG013 was part of a recent galaxy collision and merger.
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ESO 185-IG013 also contains a tidal shell, the diffuse glow surrounding its bright center, which is a common signal of galaxy mergers. Scientists believe that in a galaxy merger, the smaller of the two interacting galaxies gets disrupted by the larger galaxy, losing most of its material,” said the NASA Hubble Mission Team.
