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For refcode 1989MNRAS.240..591S:
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Copyright by Royal Astronomical Society. 1989MNRAS.240..591S Low-luminosity radio sources in early-type galaxies Elaine M. Sadler European Southern Observatory, Karl-Schwarzschild-Str. 2, D-8046 Garching bei Munchen, FRG and Kitt Peak National Observatory, P.O. Box 26732, Tucson, AZ 85726, USA C. R. Jenkins Royal Greenwich Observatory, Herstmonceux Castle, Hailsham, East Sussex BN27 1RP C. G. Kotanyi National Radio Astronomy Observatory, P.O. Box 0, Socorro, New Mexico 87801, USA and Observatoire de Paris-Meudon, 92190 Meudon, France Accepted 1989 March 14. Received 1989 March 14; in original form 1988 November 2 Summary. We have made a sensitive radio continuum survey of 114 nearby E and SO galaxies to search for weak sources. The radio detection rate is 42 per cent, with a flux limit of 0.8 mJy at 5 GHz. By deriving the radio luminosity function for a complete sample, we show that most bright early-type galaxies have low-luminosity (1O^19^ - 10^21^ W Hz^-1^ ) non-thermal radio sources. Galaxies of similar optical luminosity vary widely in radio luminosity, but a characteristic radio power (the 30th percentile) rises roughly as the optical luminosity squared. SO galaxies have weaker radio sources on average than elliptical galaxies, but this can be explained by the low luminosity of most SO bulges relative to ellipticals. We find no correlation between radio power and axial ratio for galaxies with radio luminosities below 10^23^ W Hz^-1^. Most early-type galaxies have modest amounts of ionized gas in their central regions, but there is no correlation between optical emission-line luminosity and the presence or strength of radio emission at the low luminosities considered here.
Retrieve 245 NED objects in this reference.
Please click here for ADS abstract

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