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For refcode 2001ApJS..133...77H:
Retrieve 187 NED objects in this reference.
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2001ApJS..133...77H Radio Continuum Survey of an Optically Selected Sample of Nearby Seyfert Galaxies Luis C. Ho The Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101-1292; lho@ociw.edu and James S. Ulvestad National Radio Astronomy Observatory, P.O. Box 0, 1003 Lopezville Road, Socorro, NM 87801; julvesta@nrao.edu Received 2000 July 8; accepted 2000 October 9 ABSTRACT We have used the Very Large Array (VLA) to conduct a survey for radio continuum emission in the sample of 52 Seyfert nuclei selected from the optical spectroscopic galaxy catalog of Ho, Filippenko, & Sargent. This Seyfert sample is the most complete and least biased available, and, as such, it will be useful for a variety of statistical analyses. Here we present the observations, measurements, and an atlas of radio maps. The observations were made at 6 cm in the B array and at 20 cm in the A array, yielding matched angular resolutions of ~1". We detected 44 objects (85%) at 6 cm and 37 objects (71%) at 20 cm above a 3 {sigma}threshold of 0.12 mJy beam^-1^. The sources have a wide range of radio powers (P ~ 10^18^- 10^25^ x Hz^-1^), spectral indices ({alpha}_6_^20^ ~ +0.5 to -1), and linear sizes (L ~ few tens pc^-15^ kpc). The morphology of the radio emission is predominantly that of a compact core, either unresolved or slightly resolved, occasionally accompanied by elongated, jetlike features. Linearly polarized emission was detected at 6 cm in 12 sources, nine of which were also detected at 20 cm. Subject headings: galaxies: active-galaxies: jets-galaxies: nuclei- galaxies: Seyfert-galaxies: structure-radio continuum: galaxies
Retrieve 187 NED objects in this reference.
Please click here for ADS abstract

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