The Lyman forest of 0014 + 813

Details The Lyman forest of 0014 + 813 The Lyman forest of 0014 + 813

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...390..387r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 390, no. 2, May 10, 1992, p. 387-404.

Other

121

Intergalactic Media, Lyman Spectra, Quasars, Stellar Spectra, Absorption Spectra, Doppler Effect, Echelle Gratings, Heavy Elements, Spectrum Analysis

Scientific paper

The study describes results of 23-km/s resolution echelle spectroscopy of the Lyman forest region of the 3.38-redshift QSO 0014 + 813. Voigt profile fits to the Lyman series absorption lines yield H I column density and Doppler parameter distributions similar to those obtained in previous studies of other objects. No evidence is found for a correlation between the Doppler parameter and column density; it is shown that an apparent correlation is due entirely to selection effects of line detection and fitting. While the Lyman forest systems as a whole show no clustering, there appears to be a population of weak, narrow-lined systems which exhibit clustering on scales of less than about 1000 km/s. A simple test for voids along the sight line to 0014 + 813 proved negative.

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