NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-21 T17:20:36 PDT
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For refcode 2015MNRAS.446.1107I:
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Copyright by Royal Astronomical Society. 2015MNRAS.446.1107I Stellar mass assembly of brightest cluster galaxies at late times Inagaki, Takahiro; Lin, Yen-Ting; Huang, Hung-Jin; Hsieh, Bau-Ching; Sugiyama, Naoshi Abstract. Understanding the formation history of brightest cluster galaxies (BCGs) is an important topic in galaxy formation. Utilizing the Planck Sunyaev-Zel'dovich cluster catalogue, and applying the ansatz that the most massive haloes at one redshift remain among the most massive ones at a slightly later cosmic epoch, we have constructed cluster samples at redshift z ~ 0.4 and z ~ 0.2 that can be statistically regarded as progenitor-descendant pairs. This allows us to study the stellar mass assembly history of BCGs in these massive clusters at late times, finding that the degree of growth between the two epochs is likely at only few per cent level, which is far lower compared to the prediction from a state-of-the-art semi-analytic galaxy formation model. Key words: galaxies: clusters: general, galaxies: elliptical and lenticular, cD, galaxies: evolution
Retrieve 106 NED objects in this reference.
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