2011ApJ...726...58A

Query : 2011ApJ...726...58A

2011ApJ...726...58A - Astrophys. J., 726, 58 (2011/January-2)

Observations of the blazar 3C 66A with the magic telescopes in stereoscopic mode.

ALEKSIC J., ANTONELLI L.A., ANTORANZ P., BACKES M., BARRIO J.A., BASTIERI D., BECERRA GONZALEZ J., BEDNAREK W., BERDYUGIN A., BERGER K., BERNARDINI E., BILAND A., BLANCH O., BOCK R.K., BOLLER A., BONNOLI G., BORDAS P., BORLA TRIDON D., BOSCH-RAMON V., BOSE D., BRAUN I., BRETZ T., CAMARA M., CANELLAS A., CARMONA E., CAROSI A., COLIN P., COLOMBO E., CONTRERAS J.L., CORTINA J., COSSIO L., COVINO S., DAZZI F., DE ANGELIS A., DE CEA DEL POZO E., DE LOTTO B., DE MARIA M., DE SABATA F., DELGADO MENDEZ C., DIAGO ORTEGA A., DOERT M., DOMINGUEZ A., DOMINIS PRESTER D., DORNER D., DORO M., ELSAESSER D., ERRANDO M., FERENC D., FONSECA M.V., FONT L., GARCIA LOPEZ R.J., GARCZARCZYK M., GIAVITTO G., GODINOVIC N., HADASCH D., HERRERO A., HILDEBRAND D., HOHNE-MONCH D., HOSE J., HRUPEC D., JOGLER T., KLEPSER S., KRAHENBUHL T., KRANICH D., KRAUSE J., LA BARBERA A., LEONARDO E., LINDFORS E., LOMBARDI S., LONGO F., LOPEZ M., LORENZ E., MAJUMDAR P., MAKARIEV M., MANEVA G., MANKUZHIYIL N., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MAZIN D., MEUCCI M., MIRANDA J.M., MIRZOYAN R., MIYAMOTO H., MOLDON J., MORALEJO A., NIETO D., NILSSON K., ORITO R., OYA I., PAOLETTI R., PAREDES J.M., PARTINI S., PASANEN M., PAUSS F., PEGNA R.G., PEREZ-TORRES M.A., PERSIC M., PERUZZO L., POCHON J., PRADA F., PRADA MORONI P.G., PRANDINI E., PUCHADES N., PULJAK I., REICHARDT I., REINTHAL R., RHODE W., RIBO M., RICO J., RUGAMER S., SAGGION A., SAITO K., SAITO T.Y., SALVATI M., SANCHEZ-CONDE M., SATALECKA K., SCALZOTTO V., SCAPIN V., SCHULTZ C., SCHWEIZER T., SHAYDUK M., SHORE S.N., SIERPOWSKA-BARTOSIK A., SILLANPAA A., SITAREK J., SOBCZYNSKA D., SPANIER F., SPIRO S., STAMERRA A., STEINKE B., STORZ J., STRAH N., STRUEBIG J.C., SURIC T., TAKALO L., TAVECCHIO F., TEMNIKOV P., TERZIC T., TESCARO D., TESHIMA M., THOM M., TORRES D.F., VANKOV H., WAGNER R.M., WEITZEL Q., ZABALZA V., ZANDANEL F. and ZANIN R.

Abstract (from CDS):

We report new observations of the intermediate-frequency peaked BL Lacertae object 3C 66A with the MAGIC telescopes. The data sample we use were taken in 2009 December and 2010 January, and comprises 2.3 hr of good quality data in stereoscopic mode. In this period, we find a significant signal from the direction of the blazar 3C 66A. The new MAGIC stereoscopic system is shown to play an essential role for the separation between 3C 66A and the nearby radio galaxy 3C 66B, which is at a distance of only 6'. The derived integral flux above 100 GeV is 8.3% of the Crab Nebula flux and the energy spectrum is reproduced by a power law of photon index 3.64±0.39stat± 0.25sys. Within errors, this is compatible with the one derived by VERITAS in 2009. From the spectra corrected for absorption by the extragalactic background light, we only find small differences between the four models that we applied, and constrain the redshift of the blazar to z < 0.68.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: individual: 3C 66A - galaxies: active - gamma rays: galaxies

Simbad objects: 4

goto Full paper

goto View the references in ADS

Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0218+42 Psr 02 18 06.3604 +42 32 17.365           ~ 365 2
2 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
3 Z 538-57 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 582 2
4 IC 310 AGN 03 16 42.9787569912 +41 19 29.615579544   14.3       ~ 311 2

To bookmark this query, right click on this link: simbad:objects in 2011ApJ...726...58A and select 'bookmark this link' or equivalent in the popup menu