Molecular Absorption Lines at High Redshift
نویسنده
چکیده
The four known molecular absorption line systems at redshifts z=0.25–0.89 are discussed. Two of the systems originate in the galaxy hosting the ‘background’ AGN, while in two cases the absorption occurs in truely intervening galaxies. Indirect evidence for the existence of very small scale structure in the molecular ISM is presented. A new absorption line at z=0.89 towards PKS1830–211 opens up interesting possibilities to accurately derive the mass of the lensing galaxy.
منابع مشابه
ar X iv : a st ro - p h / 97 11 18 4 v 1 1 7 N ov 1 99 7 Molecular lines in absorption : recent results
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