PKS 0119-46 and the origin of infalling absorption-line systems in quasars

Journal Article · Fri Apr 01 04:00:00 EST 1983 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183991· OSTI ID:5984130

Gaskell, C M

It is proposed that the infalling (z/sub abs/>z/sub em/) absorption-line systems in the quasar PKS 0119--046 are due to a blueshifting of the broad emission lines with respect to the rest frame of the underlying galaxy in which the quasar is located rather than being due to a real high-velocity infall. The spectrum of PKS 0119-046 shows a narrow emission-line spike at 3610 A. This is interpreted as Lyman-..cap alpha.. emission from the narrow-line region of the quasar. The emission is at a redshift very close to that of the highest redshift absorption-line systems. The spectrum of PKS 0119-046 is consistent with it having a lightly reddened narrow-line region similar to that which might be seen in a typical low-redshift quasar. The physical parameters deduced for one of the absorption-line systems are completely compatible with that system being caused by a narrow emission-line cloud seen in absorption.

• Research Organization: Institute of Astronomy, Cambridge, England
• OSTI ID: 5984130
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 267:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
COSMIC RADIO SOURCES
EMISSION SPECTRA
LINE WIDTHS
LYMAN LINES
QUASARS
RED SHIFT
SPECTRA
SPECTRAL SHIFT