2006ApJ...642L.119A

Query : 2006ApJ...642L.119A

2006ApJ...642L.119A - Astrophys. J., 642, L119-L122 (2006/May-2)

Discovery of very high energy gamma rays from 1ES 1218+30.4.

ALBERT J., ALIU E., ANDERHUB H., ANTORANZ P., ARMADA A., ASENSIO M., BAIXERAS C., BARRIO J.A., BARTELT M., BARTKO H., BASTIERI D., BAVIKADI S.R., BEDNAREK W., BERGER K., BIGONGIARI C., BILAND A., BISESI E., BOCK R.K., BRETZ T., BRITVITCH I., CAMARA M., CHILINGARIAN A., CIPRINI S., COARASA J.A., COMMICHAU S., CONTRERAS J.L., CORTINA J., CURTEF V., DANIELYAN V., DAZZI F., DE ANGELIS A., DE LOS REYES R., DE LOTTO B., DOMINGO-SANTAMARIA E., DORNER D., DORO M., ERRANDO M., FAGIOLINI M., FERENC D., FERNANDEZ E., FIRPO R., FLIX J., FONSECA M.V., FONT L., GALANTE N., GARCZARCZYK M., GAUG M., GILLER M., GOEBEL F., HAKOBYAN D., HAYASHIDA M., HENGSTEBECK T., HOHNE D., HOSE J., JACON P., KALEKIN O., KRANICH D., LAILLE A., LENISA T., LIEBING P., LINDFORS E., LONGO F., LOPEZ J., LOPEZ M., LORENZ E., LUCARELLI F., MAJUMDAR P., MANEVA G., MANNHEIM K., MARIOTTI M., MARTINEZ M., MASE K., MAZIN D., MEUCCI M., MEYER M., MIRANDA J.M., MIRZOYAN R., MIZOBUCHI S., MORALEJO A., NILSSON K., ONA-WILHELMI E., ORDUNA R., OTTE N., OYA I., PANEQUE D., PAOLETTI R., PASANEN M., PASCOLI D., PAUSS F., PAVEL N., PEGNA R., PERSIC M., PERUZZO L., PICCIOLI A., POLLER M., PRANDINI E., RHODE W., RICO J., RIEGEL B., RISSI M., ROBERT A., RUGAMER S., SAGGION A., SANCHEZ A., SARTORI P., SCALZOTTO V., SCHMITT R., SCHWEIZER T., SHAYDUK M., SHINOZAKI K., SHORE S.N., SIDRO N., SILLANPAA A., SOBCZYNSKA D., STAMERRA A., STARK L.S., TAKALO L., TEMNIKOV P., TESCARO D., TESHIMA M., TONELLO N., TORRES A., TORRES D.F., TURINI N., VANKOV H., VARDANYAN A., VITALE V., WAGNER R.M., WIBIG T., WITTEK W. and ZAPATERO J.

Abstract (from CDS):

The MAGIC collaboration has studied the high-frequency-peaked BL Lac object 1ES 1218+30.4, at a redshift z=0.182, using the MAGIC imaging air Cerenkov telescope located on the Canary Island of La Palma. A gamma-ray signal was observed with 6.4 σ significance. The differential energy spectrum for an energy threshold of 120 GeV can be fitted by a simple power law, yielding FE(E)=(8.1±2.1)x10–7[E/(250 GeV)]–3.0±0.4 TeV–1/m2/s. During the 6 days of observation in 2005 January, no time variability on timescales of days was found within the statistical errors. The observed integral flux above 350 GeV is nearly a factor of 2 below the upper limit reported by the Whipple collaboration in 2003.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: individual (1ES 1218+30.4) - Gamma Rays: Observations

Simbad objects: 7

goto Full paper

goto View the references in ADS

Number of rows : 7
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 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
3 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
4 Ton 605 HB* 12 16 53.6748432768 +30 04 08.692883544   16.110 15.98     B 223 0
5 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
6 NGC 4253 Sy1 12 18 26.5163572920 +29 48 46.531535472   14.34 13.57     ~ 1106 1
7 PG 1218+304 BLL 12 21 21.9426947832 +30 10 37.158534012   16.50 15.85 15.7   ~ 497 1

To bookmark this query, right click on this link: simbad:objects in 2006ApJ...642L.119A and select 'bookmark this link' or equivalent in the popup menu