Associated HI Absorption in the z = 3:4 Radio Galaxy B2 0902 + 343 Observed with the GMRT

Chandra, Poonam and Swarup, Govind and Kulkarni, Vasant K and Kantharia, Nimisha G (2004) Associated HI Absorption in the z = 3:4 Radio Galaxy B2 0902 + 343 Observed with the GMRT. In: Journal of Astrophysics and Astronomy, 25 (1-2). pp. 57-65.

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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. (199 1), 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 4 mJy (2sigma) on emission line strength at the position where Uson et al. (1991) claimed to have found a narrow emission line.

Item Type:	Journal Article
Additional Information:	The copyright of this article belongs to Indian Academy of Sciences.
Keywords:	Galaxies;absorption lines;radio galaxies
Department/Centre:	Division of Physical & Mathematical Sciences > Joint Astronomy Programme
Date Deposited:	26 Oct 2004
Last Modified:	19 Sep 2010 04:16
URI:	http://eprints.iisc.ernet.in/id/eprint/2117

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