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IPM
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“School of Astronomy”

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Paper   IPM / Astronomy / 11735
School of Astronomy
  Title:   Keck/LRIS Spectroscopic Confirmation of Coma Cluster Dwarf Galaxy Membership Assignments
  Author(s): 
1.  Kristin S. Chiboucas
2.  R. Brent Tully
3.  Ronald O. Marzke
4.  Neil Trentham
5.  Henry C. Ferguson
6.  Derek Hammer
7.  David Carter
8.  Habib Gharar Khosroshahi
  Status:   Published
  Journal: ApJ
  Vol.:  723
  Year:  2010
  Pages:   251-266
  Publisher(s):   The Astrophysical Journal
  Supported by:            IPM IPM
  Abstract:
Keck/LRIS multi-object spectroscopy has been carried out on 140 of some of the lowest and highest surface brightness faint (19 < R < 22) dwarf galaxy candidates in the core region of the Coma Cluster. These spectra are used to measure redshifts and establish membership for these faint dwarf populations. The primary goal of the low surface brightness sample is to test our ability to use morphological and surface brightness criteria to distinguish between Coma Cluster members and background galaxies using high resolution Hubble Space Telescope/Advanced Camera for Surveys images. Candidates were rated as expected members, uncertain, or expected background. From 93 spectra, 51 dwarf galaxy members and 20 background galaxies are identified. Our morphological membership estimation success rate is  100

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