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Date and Time of the Query: 2019-07-21 T10:41:43 PDT
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For refcode 2007ApJ...660.1209Y:
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Copyright by American Astronomical Society. Reproduced by permission
2007ApJ...660.1209Y The Remarkable 60x2 kpc Optical Filament Associated with a Poststarburst Galaxy in the Coma Cluster Masafumi Yagi, Yutaka Komiyama, Michitoshi Yoshida, Hisanori Furusawa, Nobunari Kashikawa, Yusei Koyama, and Sadanori Okamura Abstract. In the deep narrowband image of the Coma Cluster taken with Suprime-Cam of the Subaru Telescope, we found an extremely long and narrow (~60x2 kpc) H{alpha}-emitting region associated with a poststarburst galaxy (D100). Follow-up spectroscopy shows that the region has the same redshift as D100. The surface brightness of the region is typically 25 mag (AB) arcsec^-2^ in H{alpha}, which corresponds to (0.5 -- 4)x10^-17^ ergs s^-1^ cm^-2^ arcsec^-2^. We propose two possible explanations for the origin of the region; gas stripped off from a merged dwarf or gas stripped off from D100 by ram pressure. Either scenario meets with difficulty in fully explaining all the observed characteristics of the region. Key words: Galaxies: Evolution, Galaxies: Structure
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