CA II absorption lines in the spectrum of the quasar PKS 2020-370 due to galactic material in the group Klemola 31

Details CA II absorption lines in the spectrum of the quasar PKS 2020-370 due to galactic material in the group Klemola 31 CA II absorption lines in the spectrum of the quasar PKS 2020-370 due to galactic material in the group Klemola 31

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...242l.145b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 242, Dec. 15, 1980, p. L145-L148. Research supported by the Science

Astronomy and Astrophysics

Astrophysics

42

Absorption Spectra, Calcium, Line Spectra, Quasars, Red Shift, Elliptical Galaxies, Halos, Sodium, Spiral Galaxies

Scientific paper

In the spectrum of the quasar PKS 2020-370 (emission redshift = 1.050), Ca II absorption lines are found both at near zero redshift and at an absolute redshift of 0.02865 + or - 0.00007. The latter is closely similar to the redshifts of two galaxies in the group Klemola 31, which are nearby on the plane of the sky. This observation adds to the evidence that the narrow-lined heavy-element absorption systems in quasar spectra in general arise in the extended halos of intervening galaxies.

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