2014MNRAS.437.3236F


Query : 2014MNRAS.437.3236F

2014MNRAS.437.3236F - Mon. Not. R. Astron. Soc., 437, 3236-3254 (2014/February-1)

Spectropolarimetry with the Giant Metrewave Radio Telescope at 610MHz: a case study of two southern compact group fields.

FARNES J.S., GREEN D.A. and KANTHARIA N.G.

Abstract (from CDS):

We present 610MHz spectropolarimetric images from the Giant Metrewave Radio Telescope (GMRT). We discuss the properties of the GMRT's full-polarization mode in detail and provide a technical characterization of the instrument's polarization performance. We show that the telescope can be used for wide-field spectropolarimetry. The application of Rotation Measure Synthesis results in a sensitivity at the level of tens of µJy in Faraday space. As a demonstration of the instrument's capabilities, we present observations of two southern compact groups - the Grus Quartet and USCG S063. The observations are compared with other radio and infrared data to constrain the group members' spectral index, polarization fraction and Faraday depth. Radio continuum emission is detected from all four galaxies in the Grus Quartet and one galaxy in USCG S063. Linear polarization is detected from a circumnuclear starburst ring in NGC 7552, the active nucleus of NGC 7582, and three extended radio galaxies in the background of the Grus Quartet field. These background sources allow for the classification of a Fanaroff-Riley type I and an X-shaped radio galaxy. No evidence is found for interaction with the intragroup medium in either galaxy group.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): polarization - techniques: polarimetric - galaxies: individual: USCG S063 - galaxies: individual: NGC 7552 - galaxies: individual: NGC 7582 - radio continuum: galaxies

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SCG2 0141-3429 CGG 01 34 04.49 -34 26 44.3   15.22   14.35 15.3 ~ 17 0
2 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2606 2
3 IC 1722 LSB 01 43 02.980 -34 11 14.39   14.71   13.70   ~ 21 0
4 IC 1724 GiG 01 43 09.6878887039 -34 14 31.072650814   14.09   12.39   ~ 22 0
5 ESO 353-36 EmG 01 43 18.377 -34 12 21.60   15.13   13.76   ~ 23 0
6 ESO 353-39 G 01 43 37.249 -34 16 20.60   15.93   14.80   ~ 6 0
7 IRAS F01415-3433 IR 01 43 45.0 -34 18 01           ~ 3 0
8 QSO B0237-2322 QSO 02 40 08.1742481040 -23 09 15.727160393   16.78 16.63     ~ 484 0
9 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1215 3
10 ICRF J052109.8+163822 Sy1 05 21 09.88592749 +16 38 22.0517668   19.37 18.84 18.480   ~ 777 1
11 ICRF J054236.1+495107 Sy1 05 42 36.13789843 +49 51 07.2337251   18.45 17.80 17.210   ~ 1324 1
12 [CHM2007] HDC 520 CGG 09 21 05.72 +64 12 15.8           ~ 14 0
13 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6075 0
14 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3947 4
15 QSO B2311-452 QSO 23 14 09.3826098253 -44 55 49.239933264   19.0 19     ~ 44 1
16 NGC 7552 GiP 23 16 10.767 -42 35 05.39 11.34 11.22 10.57 10.08 11.1 ~ 517 3
17 SCG2 2315-4241 CGG 23 16 10.800 -42 35 05.00   11.34       ~ 21 0
18 2MASX J23175633-4213335 rG 23 17 56.338 -42 13 33.56   15.99   14.67   ~ 14 0
19 NGC 7582 GiP 23 18 23.621 -42 22 14.06 11.62 10.92 10.62     ~ 830 2
20 NGC 7590 GiP 23 18 54.836 -42 14 20.64   12.12 13.76 11.06 11.8 ~ 263 1
21 MCG-07-47-031 BLL 23 19 05.8960426344 -42 06 48.342680946   16.60 15.46     ~ 94 1
22 PKS 2316-429 Rad 23 19 16.4 -42 38 18           ~ 1 0
23 NGC 7599 GiP 23 19 21.145 -42 15 24.62   11.87 11.41 11.12 11.6 ~ 116 1

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2021.07.31-16:19:44

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