1. Herschel-ATLAS/GAMA: What determines the far-infrared properties of radio galaxies?
- Author
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Martin J. Hardcastle, Matt J. Jarvis, Steve Rawlings, R. Hopwood, G. de Zotti, Ian Heywood, Edo Ibar, T. Mauch, Aprajita Verma, Aliakbar Dariush, Elisabetta Valiante, J. S. Virdee, Maarten Baes, Sarah V. White, Matthew Smith, Loretta Dunne, Steve Maddox, Stephen Anthony Eales, Daniel J. Smith, Michał J. Michałowski, Dimitra Rigopoulou, Asantha Cooray, and Nathan Bourne
- Subjects
ACTIVE GALACTIC NUCLEI ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Active galactic nucleus ,Radio galaxy ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,galaxies [infrared] ,Luminosity ,X-shaped radio galaxy ,ELLIPTIC GALAXIES ,STAR-FORMING GALAXIES ,Astrophysics::Galaxy Astrophysics ,Luminosity function (astronomy) ,Physics ,Luminous infrared galaxy ,FORMATION HISTORY ,CLUSTER GALAXIES ,DIGITAL-SKY-SURVEY ,Astronomy ,Astronomy and Astrophysics ,Quasar ,FORMATION RATES ,galaxies [radio continuum] ,Galaxy ,Physics and Astronomy ,LUMINOSITY FUNCTION ,Space and Planetary Science ,active [galaxies] ,BLACK-HOLE MASS ,SCIENCE DEMONSTRATION PHASE ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We perform a stacking analysis of H-ATLAS data in order to obtain isothermal dust temperatures and rest-frame luminosities at 250um (L250), for 1599 radio sources over the H-ATLAS P1 GAMA area. The radio sample is generated using a combination of NVSS data and K-band UKIDSS-LAS data, over 0.011.5 L_{K}^{*}) may have systematically lower FIR luminosities (~25%) than their colour-matched non radio-detected counterparts. Compact radio sources (30kpc) counterparts. The higher dust temperature suggests that this may be attributed to enhanced SFRs, but whether this is directly or indirectly due to radio activity (e.g. jet induced or merger-driven SF) is as yet unknown., Comment: 18 pages, 10 figures, accepted in MNRAS
- Published
- 2013