2000/06/26 by R. Morganti, T. A. Oosterloo, Morganti, R. +7
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0006356
To appear in "The Universe at Low Radio Frequencies", IAU Symposium 199. 4 pages, 2 figures
arxiv created 2000/06/26 · arxiv updated 2009/12/01
Twenty-two powerful radio galaxies have been searched for HI absorption. We find the highest probability of detecting HI in absorption among narrow-line compact (or small) galaxies or galaxies with indication of richer interstellar medium (i.e. with ongoing or recent star-formation). We discuss the difficulty in the interpretation of the origin of the HI absorption due to the uncertainty in the systemic velocity of the galaxies.