SIMBAD references

2013A&A...559A...2G - Astronomy and Astrophysics, volume 559A, 2-2 (2013/11-1)

A large-scale galaxy structure at z=2.02 associated with the radio galaxy MRC 0156-252.

GALAMETZ A., STERN D., PENTERICCI L., DE BREUCK C., VERNET J., WYLEZALEK D., FASSBENDER R., HATCH N., KURK J., OVERZIER R., RETTURA A. and SEYMOUR N.

Abstract (from CDS):

We present the spectroscopic confirmation of a structure of galaxies surrounding the radio galaxy MRC 0156-252 at z=2.02. The structure was initially discovered as an overdensity of both near-infrared selected z>1.6 and mid-infrared selected z>1.2 galaxy candidates. We used the VLT/FORS2 multi-object spectrograph to target ∼80 high-redshift galaxy candidates, and obtain robust spectroscopic redshifts for more than half the targets. The majority of the confirmed sources are star-forming galaxies at z>1.5. In addition to the radio galaxy, two of its close-by companions (<6") also show AGN signatures. Ten sources, including the radio galaxy, lie within |z-2.020|<0.015 (i.e., velocity offsets <1500km/s) and within projected 2Mpc comoving of the radio galaxy. Additional evidence suggests not only that the galaxy structure associated with MRC 0156-252 is a forming galaxy cluster but also that this structure is most probably embedded in a larger-scale structure.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: individual: MRC 0156-252 - galaxies: large-scale structure of Universe - individual: MRC 0156-252

VizieR on-line data: <Available at CDS (J/A+A/559/A2): tablea1.dat tablea2.dat>

Nomenclature: NAME MRC 0156-252 Group N=1. Table A.1-2: [GSP2013] NNNN N=10+35.

Simbad objects: 53

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2021.05.14-08:25:06

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