A New Model for Quasar Absorption Clouds

Details A New Model for Quasar Absorption Clouds A New Model for Quasar Absorption Clouds

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.246..200d&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 246, NO.2/SEP15, P. 200, 1990

Astronomy and Astrophysics

Astronomy

2

Scientific paper

A local model for intervening absorption clouds in quasar spectra is discussed. At the boundary of cold clouds in the hot intergalactic gas a non-linear temperature profile results from electron heat conductivity and radiative energy losses both depending on ionization rates. This transition region causes the excitation of a wide range of ionization levels in the heavy elements of the gas. The predicted column densities along the line- of-sight are comparable with data from identified metal absorption systems at high redshifts.

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