Discovery of an apparent companion galaxy to Q1548 + 0917 with z = 2. 758

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115755· OSTI ID:5732595

Steidel, C C; Dickinson, M; Sargent, W L.W. ^[1]

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1. California Univ., Berkeley (USA) Palomar Observatory, Pasadena, CA (USA)

The discovery of a resolved companion to the QSO Q1548 + 0917 (redshift 2.749) is reported. The possible nature of the companion, designated C1548 + 0917, is discussed, and new spectroscopic observations of the prototypical case of a Lyman alpha emitting companion to a high-redshift QSO, PKS 1614 + 0508 A, are presented for comparison. C1548 + 0917 appears to be the first case of a radio-quiet continuum object discovered in the vicinity of what must be considered a radio-quiet QSO at high redshift. Evidence is also found for extended Lyman alpha emission associated with the QSO itself. 24 refs.

• Research Organization: California Univ., Berkeley, CA (USA)
• OSTI ID: 5732595
• Journal Information: Astronomical Journal; (USA), Journal Name: Astronomical Journal; (USA) Vol. 101; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105 -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
COSMIC RADIO SOURCES
EMISSION SPECTRA
ENVIRONMENT
GALAXIES
GRAVITATIONAL INTERACTIONS
INTERACTIONS
LYMAN LINES
QUASARS
RED SHIFT
SIGNAL-TO-NOISE RATIO
SPECTRA
SPECTROSCOPY