Characteristic scales in the distribution of QSO absorption line systems

Details Characteristic scales in the distribution of QSO absorption line systems Characteristic scales in the distribution of QSO absorption line systems

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256l..23m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 2, p. L23-L26.

Astronomy and Astrophysics

Astrophysics

20

Absorption Spectra, Cosmology, Quasars, Lyman Alpha Radiation, Spatial Distribution, Spectral Correlation

Scientific paper

Using a statistical method based on the change of the shape (slope) of the two-point correlation function, we find that there are some characteristic scales in the distribution of QSO Ly-alpha- and CIV-absorption systems. The scales are in good agreement with the typical scales found in the distribution of galaxies and clusters of galaxies (Mo et al. 1991), if we use a Friedmann model with q0 = 0.2 - 0.6 (and zero cosmological constant).

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