2017ApJ...842...81K

Query : 2017ApJ...842...81K

2017ApJ...842...81K - Astrophys. J., 842, 81-81 (2017/June-3)

Galaxy and Mass Assembly (GAMA): "no smoking" zone for giant elliptical galaxies?

KHOSROSHAHI H.G., RAOUF M., MIRAGHAEI H., BROUGH S., CROTON D.J., DRIVER S., GRAHAM A., BALDRY I., BROWN M., PRESCOTT M. and WANG L.

Abstract (from CDS):

We study the radio emission of the most massive galaxies in a sample of dynamically relaxed and unrelaxed galaxy groups from the Galaxy and Mass Assembly survey. The dynamical state of the group is defined by the stellar dominance of the brightest group galaxy (BGG), e.g., the luminosity gap between the two most luminous members, and the offset between the position of the BGG and the luminosity centroid of the group. We find that the radio luminosity of the largest galaxy in the group strongly depends on its environment, such that the BGGs in dynamically young (evolving) groups are an order of magnitude more luminous in the radio than those with a similar stellar mass but residing in dynamically old (relaxed) groups. This observation has been successfully reproduced by a newly developed semi-analytic model that allows us to explore the various causes of these findings. We find that the fraction of radio-loud BGGs in the observed dynamically young groups is ∼2 times that of the dynamically old groups. We discuss the implications of this observational constraint on the central galaxy properties in the context of galaxy mergers and the super massive black hole accretion rate.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: active - galaxies: elliptical and lenticular, cD - galaxies: groups: general - galaxies: groups: general

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 BAX 214.1083+23.2564 GrG 14 16 27.70 +23 15 25.9           ~ 65 0

Query : 2017ApJ...842...81K

Basic data :
BAX 214.1083+23.2564 -- Group of Galaxies
Other object types: otypes_help 		ClG (2007ApJS,BAX,...), X (2E,EXSS,...), GrG ([VBH2010]), C?G (XCLASS)
ICRS coord. (ep=J2000) : 		14 16 27.70 +23 15 25.9 [ ] D 2012ApJ...752...12H
FK4 coord. (ep=B1950 eq=1950) : 		14 14 10.01 +23 29 18.3 [ ]
Gal coord. (ep=J2000) : 		026.25158 +70.40603 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 38577 [~] / z(spectroscopic) 0.13814 [~] / cz 41413.3 [~]
   (Opt) D 2014ApJ...785..104R
Angular size (arcmin): 		13.333333015 13.333333015 0 (Xray) E 2021A&A...652A..12K
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 95 		Display criteria :

Identifiers (17) :
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BAX 214.1083+23.2564 RX J1416.4+2315 XMMXCS J141627.7+231525.9 [TPC2016] 3
2E 3223 1RXS J141626.0+231523 ZwCl 1413+2330 [VBH2010] cl1416p2315
2E 1414.1+2329 WARPS J1416.4+2315 [BVH2007] 186
EXSS 1414.1+2329 XCLASS 24662 [KMA2007] 214.11406+23.25626
MCXC J1416.4+2315 XMMXCS J141627.7+231523.5 [RRB2014] RM J141627.4+231522.5

References (65 between 1850 and 2026) (Total 65)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 4   

   

Observing logs
XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : BAX 214.1083+23.2564

Link by name to the catalogue in VizieR :

2E 3223 1RXS J141626.0+231523

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