2016A&A...592A..78I


Query : 2016A&A...592A..78I

2016A&A...592A..78I - Astronomy and Astrophysics, volume 592A, 78-78 (2016/8-1)

A high definition view of the COSMOS Wall at z∼ 0.73.

IOVINO A., PETROPOULOU V., SCODEGGIO M., BOLZONELLA M., ZAMORANI G., BARDELLI S., CUCCIATI O., POZZETTI L., TASCA L., VERGANI D., ZUCCA E., FINOGUENOV A., ILBERT O., TANAKA M., SALVATO M., KOVAC K. and CASSATA P.

Abstract (from CDS):

Aims. We present a study of a large filamentary structure at z∼0.73 in the field of the COSMOS survey, the so-called COSMOS Wall. This structure encompasses a comprehensive range of environments from a dense cluster and a number of galaxy groups to filaments, less dense regions, and adjacent voids. It thus provides a valuable laboratory for the accurate mapping of environmental effects on galaxy evolution at a look-back time of ∼6.5Gyr, when the Universe was roughly half its present age.
Methods. We performed deep spectroscopic observations with VIMOS at VLT of a K-band selected sample of galaxies in this complex structure, building a sample of galaxies complete in galaxy stellar mass down to a lower limit of log(M*/M)∼9.8, which is significantly deeper than previously available data. Thanks to its location within the COSMOS survey, each galaxy benefits from a wealth of ancillary information: HST-ACS data with I-band exposures down to IAB∼28 complemented by extensive multiwavelength ground- and space-based observations spanning the entire electromagnetic spectrum.
Results. In this paper we detail the survey strategy and weighting scheme adopted to account for the biases introduced by the photometric preselection of our targets. We present our galaxy stellar mass and rest-frame magnitudes estimates together with a group catalog obtained with our new data and their member galaxies color/mass distribution.
Conclusions. Owing to our new sample we can perform a detailed, high definition mapping of the complex COSMOS Wall structure. The sharp environmental information, coupled with high quality spectroscopic information and rich ancillary data available in the COSMOS field, enables a detailed study of galaxy properties as a function of local environment in a redshift slice where environmental effects are important, and in a stellar mass range where mass and environment driven effects are both at work.

Abstract Copyright: © ESO, 2016

Journal keyword(s): galaxies: evolution - galaxies: groups: general - large-scale structure of Universe

Nomenclature: Table 4: [IPS2016] WNN (Nos W1-W26).

Simbad objects: 31

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Number of rows : 31
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 1 SNR 05 34 32 +22 00.8           ~ 6004 1
2 [IPS2016] W23 GrG 09 58 54.6 +02 28 49           ~ 1 0
3 [GLB2011] COSMOS CL J095908.0+022802 GrG 09 59 07.9512 +02 28 02.667           ~ 2 0
4 [IPS2016] W25 GrG 09 59 10.2 +02 29 22           ~ 1 0
5 [KLI2012] 34 ClG 09 59 30.64 +02 30 08.4           ~ 4 0
6 [GLB2011] Group 288 GrG 09 59 31.6 +02 34 35           ~ 2 0
7 [IPS2016] W16 GrG 09 59 35.5 +02 30 19           ~ 1 0
8 [IPS2016] W8 GrG 09 59 40.3 +02 33 42           ~ 1 0
9 CDGS 47 GrG 09 59 40.70 +02 31 06.1           ~ 19 0
10 [IPS2016] W1 GrG 09 59 41.2 +02 31 03           ~ 1 0
11 [IPS2016] W7 GrG 09 59 48.4 +02 28 55           ~ 1 0
12 [GLB2011] Group 230 GrG 09 59 55.4 +02 33 34           ~ 2 0
13 [IPS2016] W10 GrG 09 59 57.4 +02 34 26           ~ 1 0
14 [IPS2016] W26 GrG 10 00 00.4 +02 17 56           ~ 1 0
15 [AFH2012] 217 GrG 10 00 01.18 +02 27 19.3           ~ 5 0
16 [AFH2012] 324 GrG 10 00 05.79 +02 21 37.8           ~ 4 0
17 [IPS2016] W9 GrG 10 00 07.0 +02 33 45           ~ 1 0
18 [IPS2016] W22 GrG 10 00 08.7 +02 27 24           ~ 1 0
19 [IPS2016] W18 GrG 10 00 09.5 +02 14 03           ~ 1 0
20 [IPS2016] W11 GrG 10 00 12.4 +02 35 54           ~ 1 0
21 [IPS2016] W24 GrG 10 00 12.8 +02 17 59           ~ 1 0
22 [IPS2016] W15 GrG 10 00 15.2 +02 24 48           ~ 1 0
23 [IPS2016] W2 GrG 10 00 16.4 +02 27 21           ~ 1 0
24 [IPS2016] W17 GrG 10 00 17.0 +02 16 56           ~ 1 0
25 [IPS2016] W14 GrG 10 00 21.2 +02 15 23           ~ 1 0
26 [IPS2016] W19 GrG 10 00 25.0 +02 33 09           ~ 1 0
27 [IPS2016] W20 GrG 10 00 25.6 +02 34 04           ~ 1 0
28 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2682 0
29 [IPS2016] W4 GrG 10 00 34.1 +02 04 06           ~ 1 0
30 [GLB2011] Group 215 GrG 10 00 41.0 +02 31 12           ~ 4 0
31 [IPS2016] W21 GrG 10 00 44.0 +02 25 24           ~ 1 0

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2023.02.04-09:26:16

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