Radio Properties of Infrared-selected Galaxies in the IRAS 2 Jy Sample

By Min S. Yun, Naveen A. Reddy, J. Condon. 2001

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The radio counterparts to the IRAS Redshift Survey galaxies are identified in the NRAO VLA Sky Survey (NVSS) catalog. Our new catalog of the IR flux-limited (S60 μm ≥ 2 Jy) complete sample of 1809 galaxies lists accurate radio positions, redshifts, and 1.4 GHz radio and IRAS fluxes. This sample is 6 times larger in size and 5 times deeper in redshift coverage (to z ≈ 0.15) than those used in earlier studies of the radio and far-IR (FIR) properties of galaxies in the local volume. The well-known radio-FIR correlation is obeyed by the overwhelming majority (≥98%) of the IR-selected galaxies, and the radio AGNs identified by their excess radio emission constitute only about 1% of the sample, independent of the IR luminosity. These FIR-selected galaxies can account for the entire population of late-type field galaxies in the local volume, and their radio continuum may be used directly to infer the extinction-free star formation rate in most cases. Both the 1.4 GHz radio and 60 μm IR luminosity functions are reasonably well described by linear sums of two Schechter functions, one representing normal, late-type field galaxies and the other representing starbursts and other luminous IR galaxies. The integrated FIR luminosity density for the local volume is (4.8 ± 0.5) × 107 L☉ Mpc-3, less than 10% of which is contributed by the luminous IR galaxies with LFIR ≥ 1011 L☉. The inferred extinction-free star formation density for the local volume is 0.015 ± 0.005 M☉ yr-1 Mpc-3.

Subfields: Astronomy and Astrophysics, Instrumentation

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Citations in the corpus

SPECTRAL ENERGY DISTRIBUTIONS OF LOCAL LUMINOUS AND ULTRALUMINOUS INFRARED GALAXIES (2012, methodology): “We employ the radio-infrared flux ratio (q) as defined by Condon et al. (1991) and the criteria specified by Yun et al. (2001) (radio-excess: q < 1.64; infrared-excess: q > 3.0) as the basis of our comparison.”
The 2-10 keV luminosity as a Star Formation Rate indicator (2002, result): “This value is consistent with the mean q = 2.34± 0.01 for the 1809 galaxies in the IRAS 2 Jy sample by Yun et al. (2001).”
Evidence for Extended, Obscured Starbursts in Submillimeter Galaxies (2004, background): “One caveat of this approach is that the far-IR–radio correlation has only been demonstrated locally on relatively large scales, 50 kpc (Yun et al. 2001), and the precise correlation may break down on the smallest scales (M. Yun 2004, private communication).”
THE HERSCHEL REFERENCE SURVEY: DUST IN EARLY-TYPE GALAXIES AND ACROSS THE HUBBLE SEQUENCE (2011, background): “Yun et al. (2001) found a median value for nearby galaxies of q = 2.64 ± 0.02, with most star-forming galaxies having values of q between 2 and 3.”
UV CONTINUUM SLOPE AND DUST OBSCURATION FROM z ∼ 6 TO z ∼ 2: THE STAR FORMATION RATE DENSITY AT HIGH REDSHIFT (2009, background): “…light at different wavelengths (Condon 1992; Kennicutt 1998; Madau et al. 1998; Ranalli et al. 2003; Yüksel et al. 2008; Li 2008; Reddy et al. 2006; Yun et al. 2001; Reddy & Steidel 2004; Reddy et al. 2006; Erb et al. 2006b), the situation becomes considerably more uncertain at redshift z & 3.”
Multiwavelength Study of Massive Galaxies at z~2. I. Star Formation and Galaxy Growth (2007, methodology): “The dispersion of the local radio-IR correlation can reach a factor of 2 for the most luminous sources (Yun et al. 2001), with luminosities comparable to those of the objects detectable at z 2.”
The Population of BzK-selected ULIRGs at z ~ 2 (2005, methodology): “Using a radio spectral index (a p 0.8 f ∝n ), we derive a luminosity of W Hz 1 for an average a 23n 3.6# 10 , which implies and12AzS p 1.9 L ∼ 1.2# 10 L SFR∼IR , yr 1 (Yun et al. 2001; Kennicutt 1998).210 M, SCUBA 850mm.—”
The Bulk of the Cosmic Infrared Background Resolved by ISOCAM (2002, background): “2.4: Sν ∝ ν−α, where α = 0.8 ± 0.15 as suggested for star forming galaxies in Yun et al. (2001).”
Dusty Star Forming Galaxies at High Redshift (2014, background): “Yun et al. (2001) show that the value of qIR in local starburst galaxies is constrained at qIR = 2.34 ± 0.72 with only a handful of outliers.”
THE COSMIC CORE-COLLAPSE SUPERNOVA RATE DOES NOT MATCH THE MASSIVE-STAR FORMATION RATE (2011, methodology): “…Hα: James et al. 2008 Hα: Perez et al. 2003 Hα: Gallego et al. 1995 10 100 Distance [Mpc] 10 -3 10 -2 10 -1 Lo ca l S F R [M y r-1 M pc -3 ] radio: Serjeant et al. 2002 radio: Condon et al. 2002 FIR: Yun et al. 2001 UV+IR: Martin et al. 2005 UV+IR: Bothwell et al. 2011 Cosmic extrapolation FIG.”