2011ApJ...735..123F

Query : 2011ApJ...735..123F

2011ApJ...735..123F - Astrophys. J., 735, 123 (2011/July-2)

The Spitzer extragalactic representative volume survey: the environments of high-z SDSS quasi-stellar objects.

FALDER J.T., STEVENS J.A., JARVIS M.J., BONFIELD D.G., LACY M., FARRAH D., OLIVER S., SURACE J., MAUDUIT J.-C., VACCARI M., MARCHETTI L., GONZALEZ-SOLARES E., AFONSO J., CAVA A. and SEYMOUR N.

Abstract (from CDS):

This paper presents a study of the environments of SDSS quasi-stellar objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied in large numbers with data of this depth before. We use the IRAC 3.6-4.5 µm color of objects and ancillary r-band data to filter out as much foreground contamination as possible. This technique allows us to find a significant (>4σ) overdensity of galaxies around QSOs in a redshift bin centered on z ∼ 2.0 and an (>2σ) overdensity of galaxies around QSOs in a redshift bin centered on z ∼ 3.3. We compare our findings to the predictions of a semi-analytic galaxy formation model, based on the ΛCDM MILLENNIUM simulation, and find for both redshift bins that the model predictions match well the source density we have measured from the SERVS data.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: general - galaxies: evolution - quasars: general

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 - 2026 		#notes
1 NAME XMM-LSS Field reg 02 18 00 -07 00.0           ~ 347 0
2 [VV2006] J104226.2+585925 QSO 10 42 26.2035497040 +58 59 25.805601132   20.16 19.97     ~ 20 0
3 [VV2006] J104413.4+580859 QSO 10 44 13.4794629888 +58 08 58.888380732   22.13 21.46     ~ 23 0
4 [VV2006] J104437.1+582936 QSO 10 44 37.1846254176 +58 29 36.991122612   21.85 20.90     ~ 30 0
5 NAME Lockman Hole reg 10 45 00.0 +58 00 00           ~ 910 0
6 [VV2006] J104508.1+575239 QSO 10 45 08.0819265168 +57 52 40.278721656   19.43 19.30     ~ 30 0
7 [VV2006] J104511.2+591625 QSO 10 45 11.1899972376 +59 16 25.548422448   19.47 19.33     ~ 36 0
8 [VV2006] J104551.7+580321 QSO 10 45 51.7163754864 +58 03 21.580434756   20.26 20.07     ~ 26 0
9 [VV2006] J104613.0+584719 QSO 10 46 12.9931636104 +58 47 19.028767632   20.16 19.75     ~ 37 0
10 [VV2006] J104622.6+574034 QSO 10 46 22.6050367416 +57 40 34.203818172   19.44 19.09     ~ 27 0
11 [VV2006] J104639.4+584047 QSO 10 46 39.4287806040 +58 40 47.772729048   19.26 18.91     ~ 34 0
12 [VV2006] J104649.4+574716 QSO 10 46 49.3730528664 +57 47 16.531062396   19.49 19.25     ~ 26 0
13 [VV2006] J104725.7+593208 QSO 10 47 25.7874023376 +59 32 08.247846624   19.55 19.48     ~ 30 0
14 [VV2006] J104726.5+582327 QSO 10 47 26.5585876344 +58 23 28.026938940   19.70 19.44     ~ 28 0
15 [VV2006] J104748.8+592329 QSO 10 47 48.7855861536 +59 23 28.895506368   19.83 19.72     ~ 30 0
16 [VV2006] J104810.8+575526 QSO 10 48 10.8147159552 +57 55 26.936449356   20.34 20.00     ~ 31 0
17 [VV2006] J104919.5+585850 QSO 10 49 19.5190656336 +58 58 50.377165968   19.50 19.26     ~ 39 0
18 [VV2006] J104922.1+575631 QSO 10 49 22.0710841176 +57 56 31.441554384   20.99 20.57     ~ 23 0
19 [VV2006] J104932.8+581107 QSO 10 49 32.7775691472 +58 11 07.345563648   19.51 19.18     ~ 29 0
20 7C 104652.20+592701.00 QSO 10 50 01.0391787168 +59 11 11.894449308   19.68 19.38     ~ 47 1
21 [VV2006] J105015.6+570255 QSO 10 50 15.5913537864 +57 02 55.717614456   20.86 20.46 20.09   ~ 34 0
22 [VV98] J105039.6+572337 QSO 10 50 39.5438741904 +57 23 36.609192456   19.85 19.55 19.14   ~ 47 1
23 [VV2006] J105153.8+565005 QSO 10 51 53.7751031400 +56 50 05.669622708   19.12 18.92     ~ 36 0
24 [VV2006] J105235.2+580600 QSO 10 52 35.2019453880 +58 06 00.419473476   19.00 18.80     ~ 30 0
25 [VV2006] J105414.7+571241 QSO 10 54 14.7747487536 +57 12 42.095082600   19.53 19.42     ~ 33 0
26 [VV2006] J105422.6+572031 QSO 10 54 22.5549379248 +57 20 30.975206136   20.56 20.21     ~ 33 0
27 [VV2006] J105715.5+573324 QSO 10 57 15.4822934208 +57 33 24.339312288   20.36 19.86     ~ 29 0
28 [VV2006] J160828.3+535251 QSO 16 08 28.3306776864 +53 52 51.882440988   21.83 21.05     ~ 23 0
29 [VV2006] J160856.8+540313 QSO 16 08 56.7919543800 +54 03 13.856252040   19.63 19.46     ~ 36 0
30 ELAIS N1 reg 16 10 01 +54 30.6           ~ 489 0
31 [VV2006] J161007.1+535814 QSO 16 10 07.1191392024 +53 58 14.181619908 18.21 19.28 19.11   18.49 ~ 40 0

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