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The XXL Survey: XLI...
The XXL Survey: XLI. Radio AGN luminosity functions based on the GMRT 610 MHz continuum observations
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- Slaus, B. (author)
- Sveučilište u Zagrebu,University of Zagreb
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- Smolcic, V (author)
- Sveučilište u Zagrebu,University of Zagreb
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- Novak, M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Fotopoulou, S. (author)
- Université de Genève,University of Geneva,Durham University
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- Ciliegi, P. (author)
- Istituto nazionale di astrofisica (INAF)
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- Jurlin, N. (author)
- Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)
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- Ceraj, L. (author)
- Sveučilište u Zagrebu,University of Zagreb
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- Tisanic, K. (author)
- Sveučilište u Zagrebu,University of Zagreb
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- Birkinshaw, M. (author)
- University of Bristol
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- Bremer, M. (author)
- University of Bristol
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Chiappetti, L. (author)
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- Horellou, Cathy, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Huynh, M. (author)
- University of Western Australia,Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Intema, H. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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- Kolokythas, K. (author)
- North-West University
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- Pierre, M. (author)
- Paris Diderot University, France
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- Raychaudhury, S. (author)
- Inter-University Centre for Astronomy and Astrophysics (IUCAA)
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- Rottgering, H. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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Sveučilište u Zagrebu Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) (creator_code:org_t)
- 2020-06-09
- 2020
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 638
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Abstract
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- We study the space density evolution of active galactic nuclei (AGN) using the 610 MHz radio survey of the XXL-North field, performed with the Giant Metrewave Radio Telescope. The survey covers an area of 30.4 deg(2), with a beamsize of 6.5 arcsec. The survey is divided into two parts, one covering an area of 11.9 deg(2) with 1 sigma rms noise of 200 mu Jy beam(-1) and the other spanning 18.5 deg(2) with rms noise of 45 mu Jy beam(-1). We extracted the catalog of radio components above 7 sigma. The catalog was cross-matched with a multi-wavelength catalog of the XXL-North field (covering about 80% of the radio XXL-North field) using a likelihood ratio method, which determines the counterparts based on their positions and their optical properties. The multi-component sources were matched visually with the aid of a computer code: Multi-Catalog Visual Cross-Matching. A flux density cut above 1 mJy selects AGN hosts with a high purity in terms of star formation contamination based on the available source counts. After cross-matching and elimination of observational biases arising from survey incompletenesses, the number of remaining sources was 1150. We constructed the rest-frame 1.4 GHz radio luminosity functions of these sources using the maximum volume method. This survey allows us to probe luminosities of 23 less than or similar to log(L-1.4 GHz[W Hz(-1)])less than or similar to 28 up to redshifts of z approximate to 2.1. Our results are consistent with the results from the literature in which AGN are comprised of two differently evolving populations, where the high luminosity end of the luminosity functions evolves more strongly than the low-luminosity end.
Subject headings
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- radio continuum: galaxies
- accretion
- galaxies: nuclei
- accretion disks
- galaxies: active
- galaxies: evolution
Publication and Content Type
- for (subject category)
- ref (subject category)
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- By the author/editor
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Slaus, B.
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Smolcic, V
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Novak, M.
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Fotopoulou, S.
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Ciliegi, P.
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Jurlin, N.
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show more...
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Ceraj, L.
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Tisanic, K.
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Birkinshaw, M.
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Bremer, M.
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Chiappetti, L.
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Horellou, Cathy, ...
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Huynh, M.
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Intema, H.
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Kolokythas, K.
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Pierre, M.
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Raychaudhury, S.
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Rottgering, H.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Accelerator Phys ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Chalmers University of Technology