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Date and Time of the Query: 2019-07-23 T09:40:53 PDT
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For refcode 2003AJ....126.1787G:
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Copyright by American Astronomical Society. Reproduced by permission
2003AJ....126.1787G Hubble Space Telescope Detection of Spiral Structure in Two Coma Cluster Dwarf Galaxies Alister W. Graham, Helmut Jerjen, and Rafael Guzman Abstract. We report the discovery of spiral-like structure in Hubble Space Telescope images of two dwarf galaxies (GMP 3292 and GMP 3629) belonging to the Coma Cluster. GMP 3629 is the faintest such galaxy detected in a cluster environment, and it is the first such galaxy observed in the dense Coma Cluster. The large bulge and the faintness of the broad spiral-like pattern in GMP 3629 suggest that its disk may have been largely depleted. We may therefore have found an example of the "missing link" in theories of galaxy evolution that have predicted that dwarf spiral galaxies, particularly in clusters, evolve into dwarf elliptical galaxies. Keywords: Galaxies: Dwarf, Galaxies: Elliptical and Lenticular, cD, Galaxies: Formation, galaxies: individual (GMP 3292), galaxies: individual (GMP 3629), Galaxies: Spiral, Galaxies: Structure
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