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NASA NTRS1983

Spectroscopy of the fuzz associated with four quasars

The spectral features detected in the fuzz of four probable quasars spanning the z range of 0.036-0.37 are reported; the objects studied are 0351 + 026 (z = 0.036), 1059 + 730 (z = 0.089), 0845 + 378 (z = 0.307), and 3C 48 (z = 0.368). The results indicate that apparently some (and probably all) low-redshift quasars are embedded in fuzz whose size, morphology, absolute magnitude, and spectroscopic character are those of a galaxy. Thus, it appears virtually certain that quasars are the active nuclei of galaxies.

Balick, B.↗

NASA NTRS1982

Further morphological studies of QSOs

Results are presented of optical mapping of 29 QSOs, together with results of VLA observations of 16 of the optically observed objects. Principal results are that QSOs to z = 0.45 have extended nebulosity, the average ratio of nuclear to fuzz luminosity, corrected for resolution, is about 0.5, some 8 times higher than Seyfert I values, the average fuzz luminosity is -21.5, fainter than giant ellipticals, and fuzz morphology does not resemble E or S galaxies, but is very similar to Seyfert I's to similar luminosity limits. In some cases, indications of spiral structure are seen, and a large fraction of asymmetrical morphology is noted. In the QSO 0241 + 622, steep spectrum radio emission is found displaced from the central source exactly along the minor optical axis.

Hutchings, J. B.↗