Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adil...jw...01w&link_type=abstract
NCSA Astronomy Digital Image Library
Astronomy and Astrophysics
Astronomy
Active Galactic Nuclei, Brightness Distribution, Charge Coupled Devices, Continuous Radiation, Elliptical Galaxies, Emission Spectra, Interstellar Gas, Optical Properties, Radio Emission, Radio Sources (Astronomy), Star Formation, Variability, Very Large Array (Vla)
Scientific paper
A volume-limited sample of 216 nearby (V(solar) <= 3000 km/s) and optically bright (B <= 14 mag) E/S0 galaxies was drawn from the Center for Astrophysics redshift survey. This volume-limited sample is ideally suited to systematic searches in all spectral domains for low power activity in E/S0 galaxies. Maps resulting from a sensitive VLA search for 6 cm sources in the nuclei of the nearby E/S0 galaxies are contained in this directory. The survey improves upon and complements past efforts by going to submillijansky levels and by concentrating on galaxies of lower optical luminosities, down to M(B) ~ -17.5 mag. Fifty-two galaxies are detected. The vast majority of these detections are unresolved (< 3 arcsec or 580 pc) and coincide closely with the optical nuclei. Some detections correspond to powers as low as approximately 2 x 10^19 W/Hz, the same as the power of the Galactic Center region on similar linear scales. Some of the surveyed detections are extended and exhibit linear or diffuse morphologies which resemble the radio sources seen in the star-forming nuclei of spiral galaxies.
Heeschen David S.
Wrobel Joan M.
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