Other
Scientific paper
Mar 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..401a&link_type=abstract
Astrophysical Journal, Part 1, vol. 220, Mar. 1, 1978, p. 401-403, 405-407, 409-417.
Other
13
Galactic Clusters, Galactic Nuclei, Galaxies, Red Shift, Absorption Spectra, Doppler Effect, Emission Spectra, H Lines, K Lines, Spiral Galaxies, Stellar Spectrophotometry
Scientific paper
A high-surface-brightness emission-line object of redshift cz = 13,300 km/s appears silhouetted against an E galaxy of cz = 2600 km/s. Photographs with different telescopes show that there is a circular area around the compact object that is darker than the background light of the E galaxy. Spectrophotometric observations show that this obscuration reddens as it absorbs the light of the E galaxy behind it, as would be expected of dust associated with the compact object. Absorption lines from gas at the high redshift are looked for. A probable absorption line at the place of the interstellar K line redshifted by cz = 13,300 km/s is found at exactly the expected redshift, within the + or - 1-A accuracy of the wavelength calibration. It is concluded that the compact object is slightly in front of, but at approximately the same distance as, the E galaxy and that most of its redshift is of an origin other than Doppler motion of recession. An attempt to map H I at the high redshift with a radio telescope should be made.
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