Galaxy at a redshift of 3. 215 - further studies of the PKS 1614+051 system

Journal Article · Mon Jun 01 04:00:00 EDT 1987 · Astron. J.; (United States)

OSTI ID:5954804

Djorgovski, S; Strauss, M A; Spinrad, H; Mccarthy, P; Perley, R A

A narrow-emission-line companion of the quasar PKS 1614+051 was reported earlier as a probable galaxy at a redshift of 3.218, which would have made it by far the most distant galaxy known at the time. New radio and optical imaging, and optical and near-IR spectroscopy of the PKS 1614+051 system is reported here. It is argued that the data support and reinforce the original interpretation of the companion object as a mildly active galaxy, possibly a marginal Seyfert 2. The object has a detectable and marginally resolved optical continuum, but was not detected at radio wavelengths. The ionization state is low, and the emission lines are fairly narrow. The improved redshift for the companion, based on the Ly-alpha line alone, is 3.215 + or - 0.002. New Ly-alpha images show interesting morphology of extended emission-line gas, suggestive of a possible tidal interaction with the neighboring QSO. 24 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; California Univ., Berkeley; National Radio Astronomy Observatory, Charlottesville, VA
• OSTI ID: 5954804
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 93; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
GALAXIES
GRAVITATIONAL INTERACTIONS
INFRARED RADIATION
INTERACTIONS
LYMAN LINES
MORPHOLOGY
NEAR INFRARED RADIATION
QUASARS
RADIATIONS
RADIOWAVE RADIATION
RED SHIFT
SEYFERT GALAXIES
SPECTRA
SPECTROSCOPY
VISIBLE RADIATION