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

Journal Article · Tue Jan 01 04:00:00 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), Journal Name: Astronomical Journal; (USA) Vol. 101; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

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