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

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

2004-07-18

arxiv.org/abs/astro-ph/0407380v1

Astronomy and Astrophysics

Astrophysics

To appear in Journal of Astronomy and Astrophysics

Scientific paper

10.1007/BF02702288

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 $323\pm1$ 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 4 mJy (2 $\sigma$) on emission line strength at the position where Uson et al. (1991) claimed to have found a narrow emission line.

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