SIMBAD references

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 z=0.0367 spiral galaxy. The properties of the red object were found to be consistent with a giant elliptical galaxy at a redshift of ∼0.5. 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.