2009A&A...505...55G


Query : 2009A&A...505...55G

2009A&A...505...55G - Astronomy and Astrophysics, volume 505, 55-61 (2009/10-1)

Tailed radio galaxies as tracers of galaxy clusters. Serendipitous discoveries with the GMRT.

GIACINTUCCI S. and VENTURI T.

Abstract (from CDS):

We report on the discovery of four new radio galaxies with tailed morphology. Tailed radio galaxies are generally found in rich environments, therefore their presence can be used as tracer of a cluster. The radio galaxies were found in the fields of Giant Metrewave Radio Telescope (GMRT) observations carried out at 610 MHz and 327 MHz devoted to other studies. We inspected the literature and archives in the optical and X-ray bands to search for galaxy clusters or groups hosting them. All the tailed radio galaxies serendipitously found in the GMRT fields are located in rich environments. Two of them belong to the candidate cluster NCSJ090232+204358, located at zphot=0.0746; one belongs to the cluster MaxBCGJ223.97317+22.15620 at zphot=0.2619; finally we suggest that the fourth one is probing a galaxy cluster at z=0.1177, located behind A262, and so far undetected in any band. Our results strengthen the relevance of high sensitivity and high resolution radio data in the detection of galaxy clusters at intermediate redshift.

Abstract Copyright:

Journal keyword(s): radiation mechanisms: non-thermal - galaxies: clusters: general

Nomenclature: Table 1: [GV2009] GMRT JHHMM+DDMM N=4.

Simbad objects: 16

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Number of rows : 16
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 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 682 1
2 NVSS J015451+362745 rG 01 54 51.5149772808 +36 27 46.837679688           ~ 9 1
3 NGC 1265 GiC 03 18 15.674 +41 51 27.94   14.7       ~ 358 2
4 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2149 1
5 [KMA2007] 223.97317+22.15620 ClG 08 29 54.57 +00 48 29.6           ~ 1 0
6 ZwCl 0857+2107 ClG 09 00 36.90 +20 53 40.3           ~ 88 0
7 FIRST J090225.8+204547 rG 09 02 25.8650687088 +20 45 46.443107700           ~ 6 0
8 NSC J090232+204358 ClG 09 02 32.67 +20 43 57.5           ~ 2 0
9 [YHW2016] 135.64540+20.73831 BiC 09 02 34.8985036728 +20 44 17.830703148           ~ 9 0
10 NVSS J145553+220924 rG 14 55 53.5606039608 +22 09 22.356993276           ~ 4 0
11 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 282 0
12 ACO 2029 ClG 15 10 58.7 +05 45 42           ~ 909 0
13 UGC 9799 Sy2 15 16 44.4893939136 +07 01 17.825410740   15.19 14.17     ~ 436 3
14 MCXC J2003.5-2323 ClG 20 03 32.3 -23 23 30           ~ 57 0
15 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 494 2
16 NGC 7720 Sy1 23 38 29.38324020 +27 01 53.2580084   13.9 13.3     ~ 531 4

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2023.01.31-07:33:17

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