NASA’s Chandra X-ray Observatory helped identify two pairs of dwarf galaxies on track to merge. Dwarf galaxies, which are at least about 20 times less massive than the Milky Way, likely formed larger galaxies through collisions in the early Universe. These newly-discovered merging dwarf galaxi
NASA’s Chandra X-ray Observatory has detected two pairs of supermassive black holes on collision courses in dwarf galaxies, which is the first evidence of such an impending encounter. This discovery provides crucial information about the early universe’s black hole growth.Dwarf galaxies, which are at least about 20 times less massive than theThese newly-discovered merging dwarf galaxies can be used as analogs for more distant ones that are too faint to observe.
A new study using NASA’s Chandra X-ray Observatory has tracked two pairs of supermassive black holes in dwarf galaxies on collision courses. This is the first evidence for such an impending encounter, providing scientists with important information about the growth of black holes in the early Universe.contain stars with a total mass less than 3 billion Suns — or about 20 times less than the Milky Way.
One pair is in the galaxy cluster Abell 133 located 760 million light-years from Earth, seen in the composite image on the left. Chandra X-ray data is in pink and optical data from CFHT is in blue. This pair of dwarf galaxies appears to be in the late stages of a merger, and shows a long tail caused by tidal effects from the collision. The authors of the new study have nicknamed it “Mirabilis” after an endangeredof hummingbird known for their exceptionally long tails.
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