Dwarf galaxies in the Coma cluster – I. Velocity dispersion measurements★†

E Kourkchi,Habib G Khosroshahi,David Carter,A M Karick, E Marmolqueralto,Kristin Chiboucas,R B Tully,Bahram Mobasher,R Guzman,Ana Matkovic,N Gruel

Monthly Notices of the Royal Astronomical Society（2012）

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摘要

We present the study of a large sample of early-type dwarf galaxies in the Coma cluster observed with DEIMOS on the Keck II to determine their internal velocity dispersion. We focus on a subsample of 41 member dwarf elliptical galaxies for which the velocity dispersion can be reliably measured, 26 of which were studied for the first time. The magnitude range of our sample is −21 < MR < −15 mag. Th...

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关键词

galaxies: clusters: individual: Coma,galaxies: dwarf,galaxies: elliptical and lenticular, cD,galaxies: evolution,galaxies: fundamental parameters,galaxies: kinematics and dynamics

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