1997A&A...321L...1B

Query : 1997A&A...321L...1B

1997A&A...321L...1B - Astronomy and Astrophysics, volume 321, L1-4 (1997/5-1)

Statistical excess of foreground galaxies around high-z radiogalaxies.

BENITEZ N., MARTINEZ-GONZALEZ E. and MARTIN-MIRONES J.M.

Abstract (from CDS):

K-band imaging of a sample of 21 radiogalaxies with z∼1.5 reveals the existence of a statistical association of foreground galaxies with the positions of the radiosources. The excess is detected within a 1' radius at a high significance level (>99.8%). K-band light is a good tracer of stellar mass, so this result indicates the existence of an association between foreground mass perturbations and background radiosources, as expected from the magnification bias effect, and confirms previous results obtained for other high-z radio-loud AGN.

Abstract Copyright: ∼

Journal keyword(s): radiogalaxies - gravitational lensing - magnification bias

Simbad objects: 24

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Number of rows : 24
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 3C 13 rG 00 34 14.6 +39 24 17   22.5       ~ 140 1
2 3C 65 rG 02 23 43.2 +40 00 53   23.0       ~ 184 1
3 3C 68 Rad 02 32 59.3 -06 46 24           ~ 5 0
4 3C 124 rG 04 41 59.1 +01 21 02   22       ~ 61 1
5 3C 173.0 QSO 07 02 20.56848 +37 57 23.2164   21.64       ~ 57 1
6 3C 184 rG 07 39 24.5 +70 23 11   21.5       ~ 138 1
7 3C 194.0 QSO 08 10 03.3449360136 +42 28 03.220633740   24       ~ 104 1
8 3C 208 QSO 08 53 08.6093021736 +13 52 54.845406984   17.76 17.42     ~ 252 1
9 3C 210 rG 08 58 10.13 +27 50 46.3   22       ~ 102 0
10 4C 47.31 rG 09 59 18.8 +47 21 15           ~ 11 1
11 3C 256 rG 11 20 43.022 +23 27 55.21   21.5       ~ 121 0
12 NVSS J113233+345318 rG 11 32 34.0 +34 53 15   21.5       ~ 22 1
13 4C 35.26 rG 11 43 51.14 +35 08 22.6   23       ~ 36 1
14 3C 267 rG 11 49 56.5 +12 47 19   22.5       ~ 155 2
15 4C 36.20 rG 12 20 09.8 +36 29 07   22.3       ~ 35 1
16 4C 34.37 rG 12 32 41.4 +34 42 54   23       ~ 34 1
17 2C 1066 SyG 12 56 57.5 +47 20 20   22.0       ~ 281 0
18 3C 294 rG 14 06 44.30 +34 11 30.1           ~ 232 1
19 4C 55.31 rG 15 35 01.2 +55 36 49   23       ~ 124 1
20 3C 324.0 Sy1 15 49 49.2 +21 25 39   21.5       ~ 309 0
21 2MASX J15520913+2005477 G 15 52 09.1120432368 +20 05 48.211598760   17.87 17.08     ~ 139 1
22 2MASX J15520920+2005237 rG 15 52 09.1938375312 +20 05 23.180614152   17.87 17.08     ~ 126 2
23 3C 326 Rad 15 52 24.9 +20 05 57   17.87 17.08     ~ 219 3
24 3C 356 QSO 17 24 20.2 +50 57 14   21.5 21.5     ~ 224 1

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