Interacting galaxies and QSO absorption lines

Details Interacting galaxies and QSO absorption lines Interacting galaxies and QSO absorption lines

Dec 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976natur.264..733c&link_type=abstract

Nature, vol. 264, Dec. 23-30, 1976, p. 733, 734. ESA-supported research.

Astronomy and Astrophysics

Astronomy

1

Absorption Spectra, Galactic Evolution, Interacting Galaxies, Quasars, Astronomical Models, Cosmology, Emission Spectra, Red Shift

Scientific paper

It is pointed out that the interception cross section of intervening galaxies for QSO photons has hitherto been calculated on the assumption that the galaxies do not evolve. However, the data currently available appear to indicate that the number of absorption redshift systems increases more rapidly as a function of the emission line redshift than can be accounted for without such evolution. The rapid increase in the number of redshift systems is attributed to tidal interaction of galaxies at earlier epochs.

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