Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-01-08
Astronomy and Astrophysics
Astrophysics
Accepted for publication in the Astronomical Journal (April 2004); 23 pages, 16 figures
Scientific paper
10.1086/382713
We have searched the Faint Images of the Radio Sky at Twenty centimeters (FIRST) and the NRAO VLA Sky Survey (NVSS) 1.4 GHz radio surveys for sources that are coincident with emission-line galaxy (ELG) candidates from the KPNO International Spectroscopic Survey (KISS). A total of 207 of the 2157 KISS ELGs (~10%) in the first two H-alpha-selected survey lists were found to possess radio detections in FIRST and/or NVSS. Follow-up spectra exist for all of the radio detections, allowing us to determine the activity type (star-forming vs. AGN) for the entire sample. We explore the properties of the radio-detected KISS galaxies in order to gain a better insight into the nature of radio-emitting galaxies in the local universe (z < 0.1). No dwarf galaxies were detected, despite the large numbers of low-luminosity galaxies present in KISS, suggesting that lower mass, lower luminosity objects do not possess strong galaxian-scale magnetic fields. Due to the selection technique used for KISS, our radio ELGs represent a quasi-volume-limited sample, which allows us to develop a clearer picture of the radio galaxy population at low redshift. Nearly 2/3rds of the KISS radio galaxies are starburst/star-forming galaxies, which is in stark contrast to the results of flux-limited radio surveys that are dominated by AGNs and elliptical galaxies (i.e., classic radio galaxies). While there are many AGNs among the KISS radio galaxies, there are no objects with large radio powers in our local volume. We derive a radio luminosity function (RLF) for the KISS ELGs that agrees very well with previous RLFs that adequately sample the lower-luminosity radio population.
Beckerman Eli
Condon James J.
Duyne Jeff Van
Frattare Lisa
Gronwall Caryl
No associations
LandOfFree
Radio Continuum Emission at 1.4 GHz from KISS Emission-Line Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radio Continuum Emission at 1.4 GHz from KISS Emission-Line Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio Continuum Emission at 1.4 GHz from KISS Emission-Line Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-66070