On the statistics of quasar absorption lines

Details On the statistics of quasar absorption lines On the statistics of quasar absorption lines

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89.1808z&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, Dec. 1984, p. 1808-1810.

Astronomy and Astrophysics

Astronomy

Absorption Spectra, Astronomical Spectroscopy, Line Spectra, Quasars, Statistical Distributions, Mathematical Models, Poisson Density Functions, Red Shift

Scientific paper

The distribution of absorption lines in 13 quasar spectra is analyzed and shown to be fully consistent with the hypothesis of randomly, but not uniformly, distributed absorption features. The analysis by Libby et al. (1984), in which it is claimed that the number of wavelength coincidences among absorption lines in different quasar spectra (as measured in the rest frame of the quasars) is much larger than expected, implying absorbers in the quasars themselves, is totally invalid. Instead, the number of these coincidences is fully commensurate with the expected one on the assumption of randomness.

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