Absorption lines in the spectrum of Q0248 + 4302 due to a foreground tidal tail

Details Absorption lines in the spectrum of Q0248 + 4302 due to a foreground tidal tail Absorption lines in the spectrum of Q0248 + 4302 due to a foreground tidal tail

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...359l..37s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 359, Aug. 20, 1990, p. L37-L40.

Astronomy and Astrophysics

Astrophysics

23

Absorption Spectra, Quasars, Tides, Interacting Galaxies, Interstellar Matter, Red Shift, Ultraviolet Absorption

Scientific paper

The strong absorption lines in the spectrum of the quasar Q0248 + 4302 are discussed. The absorption has been shown to be produced in a sinuous tidal tail which emanates from the nearby galaxy pair G0248 + 4302A,B. There is a velocity difference of about 260 km/s between the systemic redshift of the interacting galaxies and the redshift of the tidal tail at a galactocentric distance of about 11/h kpc. The large velocity spread observed in the tail gas is probably responsible for the unusual strength of the interstellar lines.

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