Radio sources in the 6dFGS: local luminosity functions at 1.4 GHz for star-forming galaxies and radio-loud AGN

By T. Mauch, E. Sadler. 2006

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We have identified 7824 radio sources from the 1.4 GHz NRAO VLA Sky Survey (NVSS) with galaxies brighter than K = 12.75 mag in the Second Incremental Data Release of the 6 degree Field Galaxy Survey (6dFGS DR2). The resulting sample of redshifts and optical spectra for radio sources over an effective sky area of 7076 deg 2 (about 17 per cent of the celestial sphere) is the largest of its kind ever obtained. NVSS radio sources associated with galaxies in the 6dFGS span a redshift range 0.003 < z < 0.3 and have median ˜ z = 0.043. Through visual examination of 6dF spectra we have identified the dominant mechanism for radio emission from each galaxy. 60 per cent are fuelled by star formation and 40 per cent are fuelled by an active galactic nucleus (AGN) powered by a supermassive black hole. We have accurately determined the local radio luminosity function (RLF) at 1.4 GHz for both classes of radio source and have found it to agree well with other recent determinations. From the RLF

Subfields: Astronomy and Astrophysics, Instrumentation

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Citations in the corpus

RESOLVING THE RADIO SOURCE BACKGROUND: DEEPER UNDERSTANDING THROUGH CONFUSION (2012, background): “…these luminosity functions are similar to more modern luminosity functions in which the FIR/radio correlation and/or optical line spectra are used to distinguish radio sources primarily powered by AGN from those primarily powered by recently formed stars (Condon et al. 2002; Mauch & Sadler 2007).”
Relativistic jet feedback in high-redshift galaxies – I. Dynamics (2016, background): “4, peaks at around the FRI/FRII break at 1024.6 W Hz−1 (Mauch & Sadler 2007).”
Radio galaxies and feedback from AGN jets (2020, background): “The earliest clue to the galaxy conditions needed to trigger strong radioloud AGN activity came from its association with massive elliptical galaxies (e.g., Matthews et al., 1964).”
The ATLAS3D project - XIII. Mass and morphology of H I in early-type galaxies as a function of environment (2011, result): “The typical noise of the images is ∼60 µJy beam−1 and more than 40 per cent of the galaxies were detected with radio power in the range 1018–1022 W Hz−1, consistent with previous studies of the continuum emission of this kind of objects (e.g. Sadler, Jenkins & Kotanyi 1989; Mauch & Sadler 2007).”
The star formation history of K-selected galaxies (2008, background): “Seyfert galaxies are known to follow the FIR/radio correlation for SFGs, albeit with a greater scatter and a tendency to be slightly more radio loud (Roy et al. 1998; Obrić et al. 2006; Mauch & Sadler 2007).”
A semi-empirical simulation of the extragalactic radio continuum sky for next generation radio telescopes (2008, background): “The luminosity functions are in generally good agreement with those determinedby Mauch & Sadler (2007) from a 6dF spectroscopic survey of NVSS radio sources.”
On the fundamental dichotomy in the local radio-AGN population (2012, result): “…low and high luminosities where small numbers of misclassifications would have pronounced effects, offers broad support to the success of the classification scheme, as does the comparison with previous determinations from Machalski & Godlowski (2000), Sadler et al. (2002) and Mauch & Sadler (2007).”
Cosmic evolution of submillimeter galaxies and their contribution to stellar mass assembly (2009, unknown): “Erb D.K., Adelberger K.L., 2006, ApJ, 644, 792 Reddy N.A., Steidel C.C., Pettini M., Adelberger K.L., Shapley A.E., Erb D.K., Dickinson M., 2008, ApJS, 175, 48 Rhoads J.E., et al., 2003, AJ, 125, 1006 Rieke G.H., Alonso-Herrero A., Weiner B.J., Pérez-González P.G., Blaylock M., Donley J.L., Marcil”
The Coevolution of Galaxies and Supermassive Black Holes: Insights from Surveys of the Contemporary Universe (2014, methodology): “…using surveys such as the 1.4 GHz National Radio Astronomy Observatory (NRAO) VLA Sky Survey (NVSS; Condon et al. 1998) by Sadler et al. (2002) and Mauch & Sadler (2007) and the Faint Images of the Radio Sky at Twenty centimeters (FIRST; Becker et al. 1995) survey by Best et al. (2005) and Best &…”
The Half Million Quasars (HMQ) Catalogue (2015, background): “64 from Mauch & Sadler (2007) who classified these as LINERs.”
A UNIFIED CATALOG OF RADIO OBJECTS DETECTED BY NVSS, FIRST, WENSS, GB6, AND SDSS (2008, methodology): “The more recent work of Mauch & Sadler (2007) includes the largest radio-selected galaxy sample available from a single radio survey, combining the NVSS with the 6 degree Field Galaxy Survey (Jones et al. 2004); they confirm that radio-loud AGN and star-forming galaxies have quite different…”
The 6dF Galaxy Survey: final redshift release (DR3) and southern large-scale structures (2009, methodology): “The 6dFGS has also been used to study special interest samples selected for their luminosity at x-ray and radio wavelengths (Sadler et al. 2007; Mauduit & Mamon 2007; Mauch & Sadler 2007).”
The Star Formation History of the Universe as Revealed by Deep Radio Observations (2008, methodology): “We then use the local radio SFG LF of Mauch & Sadler (2007).”
Radio and millimeter continuum surveys and their astrophysical implications (2009, methodology): “Spectacular progress has been recently achieved combining large-area spectroscopic surveys (Las Campanas, SDSS, 2dF and 6dF) with the NVSS and FIRST surveys (Machalski & Godlowski 2000; Magliocchetti et al. 2002; Sadler et al. 2002; Best et al. 2005; Mauch & Sadler 2007).”
THE 2MASS REDSHIFT SURVEY—DESCRIPTION AND DATA RELEASE (2011, unknown): “…Martini et al. (2007) 2007ApJS..170...33P Petrosian et al. (2007) 2007ApJS..172..599S Springob et al. (2007b) 2007MNRAS.375..931M Mauch & Sadler (2007) 2008AJ....135..588S Saintonge et al. (2008) 2008AJ....135.2424O Ogando et al. (2008) 2008AJ....136..713K Kent et al. (2008)…”