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Using deep, wide-field u*, g, i, z imaging from the Next Generation Virgo Cluster Survey (NGVS, Ferrarese et al. 2012) and K band data from the UKIDSS (Lawrence et al. 2007), we have carried out a systematic search for UCDs across the entire Virgo cluster (~104 square degrees). Finaly, we found more than 600 UCD candidates. This is the largest and most homogeneous sample of UCDs presented to date for any cluster environment, and the first of its kind for the Virgo cluster.
Please see Liu et al. 2020 for details.
UCD Catalogue
The catalogue contains 828 objectively selected UCD candidates, 612 of them are probable UCDs and the others are contaminants. The probable UCDs have the parameter class=1.
References
The Next Generation Virgo Cluster Survey. X. Properties of Ultra-compact Dwarfs in the M87, M49, and M60 Regions.
Chengze Liu, Eric W. Peng, Patrick Côté, Laura Ferrarese, Jordán, Andrés, J. Christopher Mihos, Hong-Xin Zhang, Roberto P. Munoz, Thomas H. Puzia, Ariane Lancon, Stephen Gwyn, Jean-Charles Cuillandre, John P. Blakeslee, Alessandro Boselli, Patrick R. Durrell, Pierre-Alain Duc, Puragra Guhathakurta, Lauren A. MacArthur, Simona Mei, Ruben Sanchez-Janssen, and Haiguang Xu, 2015, ApJ, 812, 34
The Next Generation Virgo Cluster Survey. XXXIV. Ultracompact Dwarf Galaxies in the Virgo Cluster.
Chengze Liu, Patrick Côté, Eric W. Peng, Joel Roediger, Hongxin Zhang, Laura Ferrarese, Ruben Sánchez-Janssen, Puragra Guhathakurta, Xiaohu Yang, Yipeng Jing, Karla Alamo-Martinez, John P. Blakeslee, Alessandro Boselli, Jean-Charles Cuilandre, Pierre-Alain Duc, Patrick Durrell, Stephen Gwyn, Andres Jordán, Youkyung Ko, Ariane Lancon, Sungsoon Lim, Alessia Longobardi, Simona Mei, J. Christopher Mihos, Roberto Munoz, Mathieu Powalka, Thomas Puzia, Chelsea Spengler, and Elisa Toloba, 2020, ApJS, 250, 17
Comments to:
czliu@sjtu.edu.cn
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