Redshifts of Nine Radio Galaxies Including the Abnormal System 3c 305
1966; IOP Publishing; Volume: 145; Linguagem: Inglês
10.1086/148734
ISSN1538-4357
Autores Tópico(s)Astronomy and Astrophysical Research
Resumoview Abstract Citations (130) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Redshifts of Nine Radio Galaxies Including the Abnormal System 3c 305 Sandage, Allan Abstract Redshifts have been obtained for nine radio galaxies. The values range from AX/X5 = 00237 to AX/X0 = 0.2159. The strongest emission lines that occur in the spectra are due to [Ne liii, [Ne v], [0 ii], and [Oiii] and follow the pattern found previously by Minkowski for Cygnus A and by Schmidt for many other radio galaxies. 3C 305 appears to be a flattened, rotating galaxy with a faint, uniformly textured spiral arm. The tentative Hubble classification is Sa pec. The south edge of the galaxy is the near side, the east end of the major axis is approaching, and the spiral pattern is left- which require that the arm is trailing. The emission lines show their maximum intensity 2000 pc eastward of the nucleus, suggesting a cone or jetlike distribution of gas, asymmetrically placed relative to the center of the galaxy. 3C 305 is a highly luminous optical galaxy with a radio power of 5 X 1041 ergs/sec. It is the first spiral-like system to be identified as a strong radio source. Publication: The Astrophysical Journal Pub Date: July 1966 DOI: 10.1086/148734 Bibcode: 1966ApJ...145....1S full text sources ADS | data products NED (10) SIMBAD (1)
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