Imaging spectroscopy of five QSOs

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164898· OSTI ID:6581510

Hickson, P; Hutchings, J B

Direct images and spatially resolved spectra have been obtained for five QSOs having a wide range of radio, optical, and X-ray luminosity. The two lowest luminosity objects clearly show absorption features identified with stars in a host galaxy at the QSO redshift. Such features are possibly seen in two others but not in the highest luminosity object, in which nebulosity is barely discernable. All objects show off-nuclear changes in continuum color and in emission-line intensities and ratios. The radio-loud objects have more luminous host galaxies, strong and extended forbidden O II and forbidden O III, and UV-bright nuclei. They tend to have optically luminous nuclei, high nuclear to galaxy luminosity ratios, and blue host galaxies. 23 references.

• Research Organization: British Columbia Univ., Vancouver; Dominion Astrophysical Observatory, Victoria
• OSTI ID: 6581510
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 312; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIO SOURCES
GALACTIC EVOLUTION
GALAXY NUCLEI
IMAGES
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
QUASARS
SPECTRA
SPECTROSCOPY
VISIBLE SPECTRA
X-RAY SPECTRA