VLA radio continuum survey of Seyfert galaxies (Ho+, 2001)

Details VLA radio continuum survey of Seyfert galaxies (Ho+, 2001) VLA radio continuum survey of Seyfert galaxies (Ho+, 2001)

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..21330077h&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/133/77. Originally published in: 2001ApJS..133...77H

Computer Science

Galaxies: Seyfert, Galaxies: Nearby, Radio Lines

Scientific paper

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 (1995, Cat. . 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 3σ threshold of 0.12mJy/beam. The sources have a wide range of radio powers (P~1019-1025W/Hz), spectral indices (α206~+0.5 to 1), and linear sizes (L~few tens pc - 15kpc). 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. (4 data files).

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