2018
DOI: 10.3847/1538-4365/aacd47
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KYDISC: Galaxy Morphology, Quenching, and Mergers in the Cluster Environment

Abstract: We present the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC) targeting 14 clusters at 0.015 z 0.144 using the Inamori Magellan Areal Camera and Spectrograph on the 6.5-meter Magellan Baade telescope and the MegaCam on the 3.6-meter Canada-France-Hawaii Telescope. We provide a catalog of cluster galaxies that lists magnitudes, redshifts, morphologies, bulge-to-total ratios, and local density. Based on the 1409 spectroscopically-confirmed cluster galaxies brighter than -19.8 in the r-band, we study galaxy… Show more

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Cited by 36 publications
(32 citation statements)
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References 89 publications
(87 reference statements)
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“…), comparable to what is found in low-density field environments (van Dokkum 2005). Oh et al (2018) find that 20 per cent of galaxies observed in rich clusters show post-merger signatures, whereas only 4 per cent show evidence of ongoing mergers, in agreement with Sheen et al (2012). Oh et al (2018) suggest that the mergers took place before galaxy accretion into the cluster environment, a claim supported by the numerical simulations of Yi et al (2013).…”
Section: Comparison With Previous Resultssupporting
confidence: 79%
“…), comparable to what is found in low-density field environments (van Dokkum 2005). Oh et al (2018) find that 20 per cent of galaxies observed in rich clusters show post-merger signatures, whereas only 4 per cent show evidence of ongoing mergers, in agreement with Sheen et al (2012). Oh et al (2018) suggest that the mergers took place before galaxy accretion into the cluster environment, a claim supported by the numerical simulations of Yi et al (2013).…”
Section: Comparison With Previous Resultssupporting
confidence: 79%
“…Our temperature map does not show such high values, since kT ranges from ∼ 4.0 keV up to 7.0 keV. Using the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC), Oh et al (2018) found more than 400 spectroscopic members, and the redshift histogram is well fit by a gaussian distribution, showing no evidence of merging. What calls our attention is the higher temperature "ring" in the center, which is associated with AGNs, although we found no indication for this in the literature.…”
Section: Appendix A: Notes On Individual Clustersmentioning
confidence: 71%
“…Laganá et al (2019) provided detailed XMM-Newton maps of temperature (peaking in the 4-7 keV energy band), pseudopressure, pseudo-entropy, and metallicity in the central region, within the first ∼400 kpc from the cluster centre. They classified A2249 as a non-cool-core disturbed cluster, although Oh et al (2018) and Lopes et al (2018) did not find evidence for merging from the spectroscopic redshift distribution of cluster members. However, a Dressler and Shectman three-dimensional test of the galaxy redshifts suggests that the cluster is disturbed (Lopes et al 2018).…”
Section: General Properties Of Abell 2249mentioning
confidence: 98%
“…In this work, we present the discovery of a giant radio relic found at the periphery of the galaxy cluster Abell 2249 (hereafter A2249; RA 257.44080, Dec. 34.45566). Its galaxies and ICM features have been studied in detail at various wavelengths by a number of authors: the cluster mean redshift is z = 0.0838 (Bulbul et al 2016;Lopes et al 2018;Laganá, Durret & Lopes 2019); the velocity dispersion of its constituent galaxies is between σ vel = 894 ± 50 (Lopes et al 2018) and 976 ± 38 km s −1 (Oh et al 2018). Laganá et al (2019) provided detailed XMM-Newton maps of temperature (peaking in the 4-7 keV energy band), pseudopressure, pseudo-entropy, and metallicity in the central region, within the first ∼400 kpc from the cluster centre.…”
Section: General Properties Of Abell 2249mentioning
confidence: 99%
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