AAS 198th Meeting, June 2001
Session 54. Galaxy Evolution and Surveys
Display, Wednesday, June 6, 2001, 10:00am-7:00pm, Exhibit Hall

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[54.16] FIRST-KISS: A Study of the Radio Properties of KISS ELGs

J. Van Duyne, J. J. Salzer (Wesleyan U.)

We present a study of the radio emission characteristics of a large, volume-limited sample of AGNs and starburst galaxies. The emission-line galaxies (ELGs) used in this comparison were taken from the KPNO International Spectroscopic Survey (KISS), which is a deep objective-prism survey which selects ELGs via the detection of the H\alpha emission-line. KISS consists of two survey strips, which cover a total area of ~28 square degrees. The radio sample is taken from the FIRST survey, which completely overlaps the KISS region. FIRST contains positions for all sources down to a radio flux limit of ~1 mJy. Using the accurate positions of the optical and radio sources, we carefully matched 178 radio sources to KISS ELGs. For 96.6% of the objects the positional agreement is within 2 arcsec. We present comparisons between the radio and optical fluxes, redshifts, optical color, emission line strengths, and radio and optical luminosities for the radio vs. non-radio detected ELGs. Radio ELGs make up the brighter and more luminous component of the ELG population. We also find that of the radio galaxies, 35.4% are AGNs, compared to 5.8% AGNs from the identified non-radio ELG population. We also present a volume-limited radio luminosity function out to z=0.1 and extrapolate the number density of radio galaxies to larger redshifts, with an eye toward understanding the nature of the sub-mJy radio galaxy population.

If you would like more information about this abstract, please follow the link to http://www.astro.wesleyan.edu/~slaz/research/kiss/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

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