2018ApJ...869..170J


Query : 2018ApJ...869..170J

2018ApJ...869..170J - Astrophys. J., 869, 170-170 (2018/December-3)

Chandra and HST snapshots of fossil system progenitors.

JOHNSON L.E., IRWIN J.A., WHITE R.E., WONG K.-W. and DUPKE R.A.

Abstract (from CDS):

The search for the progenitors to today's fossil galaxy systems has been restricted to N-body simulations until recently, when 12 fossil progenitors were identified in the CASSOWARY catalog of strong-lensing systems. All 12 systems lie in the predicted redshift range for finding fossils that are in the process of assembling their brightest group galaxy (BGG), and all show complex merging-like environments at their centers. Here, we present Chandra and Hubble Space Telescope snapshots of eight of these strong-lensing fossil progenitors at varying stages of evolution. We find that our lensing progenitors exhibit higher than expected X-ray luminosities and temperatures consistent with previously observed non-lensing fossil systems. More precise galaxy luminosity functions are generated, which strengthen past claims that progenitors are the transition phase between non-fossils and fossils. We also find evidence suggesting that the majority of differences between fossils and non-fossils lie in their BGGs.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: clusters: intracluster medium - galaxies: groups: general - gravitational lensing: strong

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 CSWA 11 gLS 08 00 13.06 +08 12 08.4           ~ 5 0
2 CSWA 30 gLS 08 51 26.50 +35 58 13.8           ~ 3 0
3 CSWA 4 gLS 09 01 22.37 +18 14 32.3           ~ 6 0
4 NAME Cheshire Cat gLS 10 38 43.58 +48 49 17.7           ~ 21 0
5 [KAA2009] SDSS J1113+2356 gLS 11 13 10.7 +23 56 39           ~ 5 0
6 [KAD2010] SDSS J1207+5254 gLS 12 07 35.91 +52 54 59.2           ~ 5 0
7 CSWA 28 gLS 13 43 32.8 +41 55 03           ~ 13 0
8 BAX 214.1083+23.2564 GrG 14 16 27.70 +23 15 25.9           ~ 62 0
9 CSWA 14 gLS 17 23 36.20 +34 11 58.1           ~ 7 0
10 CSWA 10 gLS 22 38 31.31384 +13 19 55.8618           ~ 4 0

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