Radio-continuum sources in nearby and bright E/S0 galaxies - Active nuclei versus star formation

Journal Article · Tue Jan 01 00:00:00 EST 1991 · Astronomical Journal; (USA)

DOI:https://doi.org/10.1086/115674· OSTI ID:6159068

Wrobel, J M; Heeschen, D S ^[1]

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1. National Radio Astronomy Observatory, Socorro, NM (USA) National Radio Astronomy Observatory, Charlottesville, VA (USA)

Results of a sensitive VLA survey of nearby E/S0 galaxies are presented. The 204 galaxies surveyed, plus 12 additional galaxies with existing VLA images, comprise a volume- and optical magnitude-limited sample. The discussion focuses on the relation between radio powers and optical luminosities, whether the radio emission is driven by an active nucleus or by recent star formation, and what galaxian properties might enhance nuclear activity in an elliptical galaxy. It is suggested that the 67 ellipticals in the sample should be targets of sensitive searches for HI, optical emission-line gas, and X-ray emitting gas. 76 refs.

• OSTI ID: 6159068
• Journal Information: Astronomical Journal; (USA), Vol. 101; ISSN 0004-6256
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXIES
RADIOWAVE RADIATION
BRIGHTNESS
CHARGE-COUPLED DEVICES
COSMIC GASES
COSMIC RADIO SOURCES
ELLIPTICAL CONFIGURATION
EMISSION SPECTRA
GALAXY NUCLEI
INTERSTELLAR SPACE
LUMINOSITY
STAR EVOLUTION
VARIATIONS
X RADIATION
CONFIGURATION
ELECTROMAGNETIC RADIATION
FLUIDS
GASES
IONIZING RADIATIONS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SEMICONDUCTOR DEVICES
SPACE
SPECTRA
640105* - Astrophysics & Cosmology- Galaxies