Associated HI absorption in the z = 3.4 radio galaxy B2 0902 + 343 observed with the GMRT

Chandra, Poonam ; Swarup, Govind ; Kulkarni, Vasant K. ; Kantharia, Nimisha G. (2004) Associated HI absorption in the z = 3.4 radio galaxy B2 0902 + 343 observed with the GMRT Journal of Astrophysics and Astronomy, 25 (1-2). pp. 57-65. ISSN 0250-6335

[img]
Preview
PDF - Publisher Version
58kB

Official URL: http://www.ias.ac.in/jaa/marjune2004/pdf/jaap57-66...

Related URL: http://dx.doi.org/10.1007/BF02702288

Abstract

We have made observations of the associated HI absorption of a high redshift radio galaxy 0902+34 at z = 3.395 with the Giant Meterwave Radio Telescope in the 323 ± 1 MHz band. We find a narrow absorption line with a flux density of 11.5 mJy at a redshift of 3.397 consistent with that observed by Uson et al. (1991), Briggs et al. (1993) and de Bruyn (1996). A weak broad absorption feature reported by de Bruyn (1996) has not been detected in our observations. We also place an upper limit of 4mJy(2σ) on emission line strength at the position where Uson et al. (1991) claimed to have found a narrow emission line.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Galaxies: Active; Absorption Lines-radio Lines; Galaxies-radio Galaxies; Individual (0902 + 343)
ID Code:57665
Deposited On:29 Aug 2011 08:31
Last Modified:18 May 2016 08:59

Repository Staff Only: item control page