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Catalog of Ultra-diffuse Galaxies in the Coma Clusters from Subaru Imaging Data

Yagi, Masafumi and Koda, Jin and Komiyama, Yutaka and Yamanoi, Hitomo (2016) Catalog of Ultra-diffuse Galaxies in the Coma Clusters from Subaru Imaging Data. Astrophysical Journal Supplement Series, 225 (1). Art. No. 11. ISSN 0067-0049.

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We present a catalog of ultra-diffuse galaxies (UDGs) in the Coma cluster. UDGs are a subset of low surface brightness (SB) galaxies with very large effective radii defined by van Dokkum et al. We surveyed the Subaru data archive for deep Suprime-Cam/Subaru R-band images, and used data covering the 1º.7 × 2º.7 region of the Coma cluster. The data are ~1 magnitude deeper than the data of van Dokkum et al (2015a) in limiting SB. This paper explains the details of our sample selection procedure. This UDG catalog includes positions, magnitudes, effective radii, mean and central SBs, and colors (when available). Comparisons with previous galaxy catalogs in the literature are performed, and we show that the current catalog is the largest for UDGs. We also discuss that most of the UDGs are members of the Coma cluster, and the major axis of the UDGs tends to align toward the cluster center (radial alignment).

Item Type:Article
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Koda, Jin0000-0002-8762-7863
Additional Information:© 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Received 2016 February 4; revised 2016 April 27; accepted 2016 April 29; published 2016 July 22. We grateful for useful discussions with Xavier Prochaska, Joe Hennawi, Ali Rahmati, Zach Hafen, Daniel Anglés-Alcázar, and Alexander Muratov. CAFG was supported by NSF grants AST-1412836 and AST-1517491, by NASA grant NNX15AB22G, and by STScI grants HST-AR-14293.001-A and HST-GO-14268.022-A. RF was supported by NASA through Hubble Fellowship grant HF-51304.01-A. EQ was supported by NASA ATP grant 12-ATP-120183, a Simons Investigator award from the Simons Foundation, and the David and Lucile Packard Foundation. DK was supported by NSF grant AST-1412153. Support for PFH was provided by an Alfred P. Sloan Research Fellowship, NASA ATP grant NNX14AH35G, and NSF grants AST-1411920 and AST-1455342. The simulations analysed in this Letter were run on XSEDE computational resources (allocations TG-AST120025, TG-AST130039, and TG-AST140023) and on NASA High-End Computing resources (allocations SMD-14-5492, SMD-14-5189, and SMD-15-6530).
Funding AgencyGrant Number
NASA Hubble FellowshipHF-51304.01-A
Simons FoundationUNSPECIFIED
David and Lucile Packard FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Subject Keywords:galaxies: clusters: individual (Abell 1656) ; galaxies: structure
Issue or Number:1
Record Number:CaltechAUTHORS:20161104-104641743
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Official Citation:Masafumi Yagi et al 2016 ApJS 225 11
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71745
Deposited By: Ruth Sustaita
Deposited On:07 Nov 2016 19:45
Last Modified:03 Oct 2019 16:10

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