2003ApJ...583L...9H

Query : 2003ApJ...583L...9H

2003ApJ...583L...9H - Astrophys. J., 583, L9-L12 (2003/January-3)

Detection of TeV gamma rays from the BL Lacertae object 1ES 1959+650 with the whipple 10 meter telescope.

HOLDER J., BOND I.H., BOYLE P.J., BRADBURY S.M., BUCKLEY J.H., CARTER-LEWIS D.A., CUI W., DOWDALL C., DUKE C., DE LA CALLE PEREZ I., FALCONE A., FEGAN D.J., FEGAN S.J., FINLEY J.P., FORTSON L., GAIDOS J.A., GIBBS K., GAMMELL S., HALL J., HALL T.A., HILLAS A.M., HORAN D., JORDAN M., KERTZMAN M., KIEDA D., KILDEA J., KNAPP J., KOSACK K., KRAWCZYNSKI H., KRENNRICH F., LE BOHEC S., LINTON E.T., LLOYD-EVANS J., MORIARTY P., MULLER D., NAGAI T.N., ONG R., PAGE M., PALLASSINI R., PETRY D., POWER-MOONEY B., QUINN J., REBILLOT P., REYNOLDS P.T., ROSE H.J., SCHROEDTER M., SEMBROSKI G.H., SWORDY S.P., VASSILIEV V.V., WAKELY S.P., WALKER G. and WEEKES T.C.

Abstract (from CDS):

We present the first strong detection of very high energy γ-rays from the close (z=0.048) X-ray-selected BL Lacertae object 1ES 1959+650. Observations were made with the Whipple 10 m telescope on Mount Hopkins, Arizona, using the atmospheric Cerenkov imaging technique. The flux between 2002 May and July was highly variable, with a mean of 0.64±0.03 times the steady flux from the Crab Nebula and reaching a maximum of 5 crab, with variability on timescales as short as 7 hr.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: BL Lacertae Objects: Individual: Alphanumeric: 1ES 1959+650 - Gamma Rays: Observations

Simbad objects: 8

Full paper

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Number of rows : 8

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2024	#notes
1	M 1	SNR	05 34 30.9	+22 00 53					~	6219	1
2	V* CM Tau	Psr	05 34 31.9474694616	+22 00 52.153698024					~	5276	0
3	Mrk 421	BLL	11 04 27.3140835504	+38 12 31.798495872		13.50	12.90	8.31	~	2692	1
4	QSO B1426+428	BLL	14 28 32.6090008440	+42 40 21.048123396		16.95	16.45	14.4	~	523	2
5	7C 165211.80+395026.00	BLL	16 53 52.21668403	+39 45 36.6088754	14.09	14.15	13.29	8.26	~	2180	2
6	QSO B1959+650	BLL	19 59 59.8520303688	+65 08 54.652536492			12.8	11.21	~	633	2
7	QSO B2155-304	BLL	21 58 52.0652249880	-30 13 32.118447792		13.36	13.09	12.62	~	1745	1
8	QSO B2344+514	BLL	23 47 04.8372110928	+51 42 17.877513168			15.50	10.7	~	468	1

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