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Herschel-ATLAS: blazars in the science demonstration phase field

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 ?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 downwardsand of spectral upturns at mm wavelengths. One of the two blazars is identified with a Fermi/LAT ?-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 aboutthe physics of blazars and their contribution to sub-mm counts.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: González-Nuevo J., De Zotti G., Andreani P., Barton E.J., Bertoldi F., Birkinshaw M., Bonavera L., Buttiglione S., Cooke J., Cooray A., Danese G., Dunne L., Eales S., Fan L., Jarvis M.J., Klöckner H.R., Hatziminaoglou E., Herranz D., Hughes D.H., Lapi A., Lawrence A., Leeuw L., Lopez-Caniego M., Massardi M., Mauch T., Michalowski M.J., Negrello M., Rawlings S., Rodighiero G., Samui S., Serjeant S., Vieira J.D., White G., Amblard A

 Fuente: Astronomy & Astrophysics, 2010, 518, L38

Editorial: EDP Sciences

 Año de publicación: 2010

Nº de páginas: 4

Tipo de publicación: Artículo de Revista

 DOI: 10.1051/0004-6361/201014637

ISSN: 0004-6361,1432-0746

Url de la publicación: https://doi.org/10.1051/0004-6361/201014637

Autoría

JOAQUIN GONZALEZ-NUEVO GONZALEZ

DE ZOTTI, GIANFRANCO

ANDREANI, PAOLA

BARTON, EMMA J.

BERTOLDI, FRANK

BIRKINSHAW, MARK

BONAVERA, LAURA

BUTTIGLIONE, MARA

COOKE, JEFF

COORAY, ASANTHA

DANESE, GIOVANNI

DUNNE, LORETTA

EALES, STEPHEN

FAN, LULU

JARVIS, MATTHEW J.

KLÖCKNER, HANS-RAINER

HATZIMINAOGLOU, EVANTHIA

MARCOS LOPEZ-CANIEGO ALCARRIA

VERMA, APRAJITA