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Astron. Astrophys. 322, 38-40 (1997)

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A distant elliptical galaxy seen through a foreground spiral *

J. Rönnback 1, 2 and P.A. Shaver 1

1 European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching bei München, Germany
2 Astronomiska Observatoriet, Box 515, S-751 20 Uppsala, Sweden

Received 21 October 1996 / Accepted 7 November 1996


The radio source PKS 0400-181 is a classical edge-brightened radio double, which was tentatively identified with a faint red object thought to be a distant galaxy located behind a [FORMULA] spiral galaxy. The properties of the red object were found to be consistent with a giant elliptical galaxy at a redshift of [FORMULA]. New spectroscopic observations confirm this interpretation; the measured redshift of the background elliptical is 0.341. This result provides further evidence that, contrary to some previous suggestions, spiral galaxies are not opaque.

Key words: galaxies: individual: PKS 0400-181 – galaxies: spiral – ISM: dust, extinction – galaxies: ISM

* Based on observations made at the European Southern Observatory, Chile

Send offprint requests to: J. Rönnback

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© European Southern Observatory (ESO) 1997

Online publication: June 30, 1998