A compact, high-redshift object silhouetted in front of the E galaxy NGC 1199

Abstract

view Abstract Citations (13) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A compact, high-redshift object silhouetted in front of the E galaxy NGC 1199. Arp, H. Abstract 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. Publication: The Astrophysical Journal Pub Date: March 1978 DOI: 10.1086/155919 Bibcode: 1978ApJ...220..401A Keywords: Galactic Clusters; Galactic Nuclei; Galaxies; Red Shift; Absorption Spectra; Doppler Effect; Emission Spectra; H Lines; K Lines; Spiral Galaxies; Stellar Spectrophotometry; Astrophysics; Compact Galaxies; Galaxies:Redshifts full text sources ADS | data products NED (2)