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Herschel-ATLAS : blazars in the science demonstration phase field

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Abstract
To investigate the poorly constrained sub-mm counts and spectral properties of blazars we searched for these in the Herschel-ATLAS (H-ATLAS) science demonstration phase (SDP) survey catalog. We cross-matched 500 mu m sources brighter than 50 mJy with the FIRST radio catalogue. We found two blazars, both previously known. Our study is among the first blind blazar searches at sub-mm wavelengths, i.e., in the spectral regime where little is still known about the blazar SEDs, but where the synchrotron peak of the most luminous blazars is expected to occur. Our early results are consistent with educated extrapolations of lower frequency counts and question indications of substantial spectral curvature downwards and of spectral upturns at mm wavelengths. One of the two blazars is identified with a Fermi/LAT gamma-ray source and a WMAP source. The physical parameters of the two blazars are briefly discussed. These observations demonstrate that the H-ATLAS survey will provide key information about the physics of blazars and their contribution to sub-mm counts.
Keywords
submillimeter: general, BL-LACERTAE OBJECTS, quasars: general, BL Lacertae objects: general, SPECTRAL ENERGY-DISTRIBUTIONS, SKY-SURVEY, RADIO, CATALOG, GHZ, QUASARS, COUNTS, SAMPLE, VIEW

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Chicago
Gonzalez-Nuevo, J, G De Zotti, P Andreani, EJ Barton, F Bertoldi, M Birkinshaw, L Bonavera, et al. 2010. “Herschel-ATLAS : Blazars in the Science Demonstration Phase Field.” Astronomy & Astrophysics 518.
APA
Gonzalez-Nuevo, J., De Zotti, G., Andreani, P., Barton, E., Bertoldi, F., Birkinshaw, M., Bonavera, L., et al. (2010). Herschel-ATLAS : blazars in the science demonstration phase field. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
Gonzalez-Nuevo J, De Zotti G, Andreani P, Barton E, Bertoldi F, Birkinshaw M, et al. Herschel-ATLAS : blazars in the science demonstration phase field. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
Gonzalez-Nuevo, J, G De Zotti, P Andreani, et al. “Herschel-ATLAS : Blazars in the Science Demonstration Phase Field.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.
@article{1236417,
  abstract     = {To investigate the poorly constrained sub-mm counts and spectral properties of blazars we searched for these in the Herschel-ATLAS (H-ATLAS) science demonstration phase (SDP) survey catalog. We cross-matched 500 mu m sources brighter than 50 mJy with the FIRST radio catalogue. We found two blazars, both previously known. Our study is among the first blind blazar searches at sub-mm wavelengths, i.e., in the spectral regime where little is still known about the blazar SEDs, but where the synchrotron peak of the most luminous blazars is expected to occur. Our early results are consistent with educated extrapolations of lower frequency counts and question indications of substantial spectral curvature downwards and of spectral upturns at mm wavelengths. One of the two blazars is identified with a Fermi/LAT gamma-ray source and a WMAP source. The physical parameters of the two blazars are briefly discussed. These observations demonstrate that the H-ATLAS survey will provide key information about the physics of blazars and their contribution to sub-mm counts.},
  articleno    = {L38},
  author       = {Gonzalez-Nuevo, J and De Zotti, G and Andreani, P and Barton, EJ and Bertoldi, F and Birkinshaw, M and Bonavera, L and Buttiglione, S and Cooke, J and Cooray, A and Danese, G and Dunne, L and Eales, S and Fan, L and Jarvis, MJ and Klockner, HR and Hatziminaoglou, E and Herranz, D and Hughes, DH and Lapi, A and Lawrence, A and Leeuw, L and Lopez-Caniego, M and Massardi, M and Mauch, T and Michalowski, MJ and Negrello, M and Rawlings, S and Rodighiero, G and Samui, S and Serjeant, S and Vieira, JD and White, G and Amblard, A and Auld, R and Baes, Maarten and Bonfield, DG and Burgarella, D and Cava, A and Clements, DL and Dariush, A and Dye, S and Frayer, D and Fritz, Jacopo and Ibar, E and Ivison, RJ and Lagache, G and Maddox, S and Pascale, E and Pohlen, M and Rigby, E and Sibthorpe, B and Smith, DJB and Temi, P and Thompson, M and Valtchanov, I and Verma, A},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {submillimeter: general,BL-LACERTAE OBJECTS,quasars: general,BL Lacertae objects: general,SPECTRAL ENERGY-DISTRIBUTIONS,SKY-SURVEY,RADIO,CATALOG,GHZ,QUASARS,COUNTS,SAMPLE,VIEW},
  language     = {eng},
  pages        = {4},
  title        = {Herschel-ATLAS : blazars in the science demonstration phase field},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014637},
  volume       = {518},
  year         = {2010},
}

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