Effects of blending on estimates of the redshift evolution of QSO Ly-alpha absorbers

Details Effects of blending on estimates of the redshift evolution of QSO Ly-alpha absorbers Effects of blending on estimates of the redshift evolution of QSO Ly-alpha absorbers

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.230..491p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 230, Feb. 15, 1988, p. 491-495.

Astronomy and Astrophysics

Astronomy

26

Absorption Spectra, Cosmology, Lyman Alpha Radiation, Quasars, Red Shift, Data Simulation, Hydrogen Clouds, Intergalactic Media, Spectral Resolution, Spectrum Analysis

Scientific paper

Blending of absorption lines in intermediate dispersion spectra of quasars could affect the observed redshift evolution of the numbers of Lyα clouds, since blends of weak lines may then be incorrectly included in equivalent width or column density limited samples. Analyses of realistic simulated data show that such effects do not significantly alter power law estimates for the redshift dependence of the cloud numbers.

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