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Date and Time of the Query: 2019-04-23 T15:09:34 PDT
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For refcode 2002AJ....124..675C:
Retrieve 4582 NED objects in this reference.
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2002AJ....124..675C RADIO SOURCES AND STAR FORMATION IN THE LOCAL UNIVERSE J. J. CONDON AND W. D. COTTON National Radio Astronomy Observatory,1 520 Edgemont Road, Charlottesville, VA 22903; jcondon@nrao.edu, bcotton@nrao.edu AND J. J. BRODERICK Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061; jjb@vt.edu Received 2002 April 1; accepted 2002 May 8 ABSTRACT Galaxies from the entire Uppsala Galaxy Catalog (UGC) have been identified with 4583 radio sources stronger than 2.5 mJy at 1.4 GHz from the NRAO VLA Sky Survey (NVSS). The complete sample of 3398 galaxies brighter than m_p_ = 14.5 in the area defined by {delta} > -2^deg^30' and |b| > 20^deg^ yielded the UGC/NVSS sample of 1966 radio sources. Their dominant energy sources were classified as stars (85%) or active galactic nuclei (15%). The luminosity function of star-forming galaxies agrees well with the far-infrared (FIR) luminosity function converted to 1.4 GHz by the FIR/radio correlation. The spectral power density of star-forming galaxies is U_SF_ = (1.53 +/- 0.07) x 10^19^ W Hz^-1^ Mpc^-3^ (statistical errors only) if H_0_ = 70 km s^-1^ Mpc^-1^. We used a model consistent with the observed FIR/radio correlation to estimate the corresponding star formation rate density within the past {tau} ~ 3 x 10^8^ yr; it is {rho}_SF_(M > 0.1 M_sun_) ~ 0.018 M_sun_ yr^-1^ Mpc^-3^. The radio sources in star-forming galaxies may be evolving even at moderately low redshifts (z ~ 0.1). Key words: catalogs - galaxies: evolution - galaxies: general - galaxies: luminosity function, mass function - galaxies: starburst - radio continuum
Retrieve 4582 NED objects in this reference.
Please click here for ADS abstract

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