2010A&A...518L..38G


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.07CEST22:13:32

2010A&A...518L..38G - Astronomy and Astrophysics, volume 518, L38-38 (2010/7-2)

Herschel-ATLAS: blazars in the science demonstration phase field.

GONZALEZ-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., KLOECKNER 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., AULD R., BAES M., BONFIELD D.G., BURGARELLA D., CAVA A., CLEMENTS D.L., DARIUSH A., DYE S., FRAYER D., FRITZ J., IBAR E., IVISON R.J., LAGACHE G., MADDOX S., PASCALE E., POHLEN M., RIGBY E., SIBTHORPE B., SMITH D.J.B., TEMI P., THOMPSON M., VALTCHANOV I. and VERMA A.

Abstract (from CDS):

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 500µm sources brighter than 50mJy 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 γ-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.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: general - quasars: general - submillimeter: general

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 3HSP J085749.1+013530 BLL 08 57 49.8060005029 +01 35 30.308220341   18.76 18.12 15.7   ~ 32 1
2 4FGL J0859.8+0053 BLL 08 59 20.5544933989 +00 47 12.177316116   19.43 18.91 19.2   ~ 17 0
3 [VV2006] J090125.8-003703 QSO 09 01 25.8390812608 -00 37 03.111995360   20.20 20.05 19.5   ~ 30 1
4 4C 01.24B QSO 09 09 10.0921832543 +01 21 35.611559836   17.63 17.29 17.04   ~ 380 2
5 ICRF J090939.8+020005 BLL 09 09 39.8485694077 +02 00 05.257599500   20.23 19.68 18.62   ~ 57 1

    Equat.    Gal    SGal    Ecl

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2021.05.07-22:13:32

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