Spatially resolved optical images of high-redshift quasi-stellar objects

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169794· OSTI ID:5913504

Heckman, T M; Miley, G K; Lehnert, M D; Van Breugel, W ^[1]

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1. Space Telescope Science Institute, Baltimore, MD (USA) Maryland Univ., Baltimore (USA) Lawrence Livermore National Laboratory, CA (USA)

U and B continuum and Ly-alpha images obtained with the UV-flooded TI2 CCD at the prime focus of the 4-m telescope at KPNO during May and November 1988 are reported for 19 radio-loud high-redshift QSOs. The data are presented in extensive contour maps, radial surface-brightness profiles, and tables and discussed in detail. Ly-alpha emission with typical luminosity about 10 to the 44th erg/sec and spatial extent about 100 kpc is spatially resolved in 15 QSOs, and these nebulae are attributed to the photoionization of the interstellar or intergalactic medium of young or proto galaxies by radiation escaping anisotropically along the radio axis of the QSO. The mechanisms possibly responsible for the Ly-alpha emission and for the UV fuzz seen around some of the QSOs are explored. 84 refs.

• OSTI ID: 5913504
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 370; ISSN ASJOA; ISSN 0004-637X
• 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
ABSORPTION SPECTRA
COSMIC RADIO SOURCES
DATA
GALAXIES
GALAXY NUCLEI
IMAGES
INFORMATION
INTERSTELLAR SPACE
LYMAN LINES
NEBULAE
QUASARS
RADIO GALAXIES
RED SHIFT
RESOLUTION
SPACE
SPATIAL RESOLUTION
SPECTRA
SPECTROSCOPY