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

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

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

Full paper

View the references in ADS

Number of rows : 5

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2022	#notes
1	3HSP J085749.1+013530	BLL	08 57 49.8048492216	+01 35 30.318573336	18.76	18.12	15.7	~	34	1
2	4FGL J0859.8+0053	BLL	08 59 20.5547533632	+00 47 12.176432988	19.43	18.91	19.2	~	18	0
3	[VV2006] J090125.8-003703	QSO	09 01 25.8398690376	-00 37 03.125460324	20.20	20.05	19.5	~	33	1
4	4C 01.24B	QSO	09 09 10.0916000808	+01 21 35.617899600	17.63	17.29	17.04	~	392	2
5	ICRF J090939.8+020005	BLL	09 09 39.8480034240	+02 00 05.263770168	20.23	19.68	18.62	~	59	1

To bookmark this query, right click on this link: simbad:objects in 2010A&A...518L..38G and select 'bookmark this link' or equivalent in the popup menu