2009ApJ...702..266A

Query : 2009ApJ...702..266A

2009ApJ...702..266A - Astrophys. J., 702, 266-269 (2009/September-1)

Search for VHE γ-ray emission from the globular cluster M13 with the magic telescope.

ANDERHUB H., ANTONELLI L.A., ANTORANZ P., BACKES M., BAIXERAS C., BALESTRA S., BARRIO J.A., BASTIERI D., BECERRA GONZALEZ J., BECKER J.K., BEDNAREK W., BERGER K., BERNARDINI E., BILAND A., BOCK R.K., BONNOLI G., BORDAS P., BORLA TRIDON D., BOSCH-RAMON V., BOSE D., BRAUN I., BRETZ T., BRITVITCH I., CAMARA M., CARMONA E., COMMICHAU S., CONTRERAS J.L., CORTINA J., COSTADO M.T., COVINO S., CURTEF V., DAZZI F., DE ANGELIS A., DE CEA DEL POZO E., DE LOS REYES R., DE LOTTO B., DE MARIA M., DE SABATA F., DELGADO MENDEZ C., DOMINGUEZ A., DORNER D., DORO M., ELSAESSER D., ERRANDO M., FERENC D., FERNANDEZ E., FIRPO R., FONSECA M.V., FONT L., GALANTE N., GARCIA LOPEZ R.J., GARCZARCZYK M., GAUG M., GOEBEL F., HADASCH D., HAYASHIDA M., HERRERO A., HILDEBRAND D., HOHNE-MONCH D., HOSE J., HSU C.C., JOGLER T., KRANICH D., LA BARBERA A., LAILLE A., LEONARDO E., LINDFORS E., LOMBARDI S., LONGO F., LOPEZ M., LORENZ E., MAJUMDAR P., MANEVA G., MANKUZHIYIL N., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MAZIN D., MEUCCI M., MEYER M., MIRANDA J.M., MIRZOYAN R., MIYAMOTO H., MOLDON J., MOLES M., MORALEJO A., NIETO D., NILSSON K., NINKOVIC J., OTTE N., OYA I., PAOLETTI R., PAREDES J.M., PASANEN M., PASCOLI D., PAUSS F., PEGNA R.G., PEREZ-TORRES M.A., PERSIC M., PERUZZO L., PRADA F., PRANDINI E., PUCHADES N., REICHARDT I., RHODE W., RIBO M., RICO J., RISSI M., ROBERT A., RUGAMER S., SAGGION A., SAITO T.Y., SALVATI M., SANCHEZ-CONDE M., SATALECKA K., SCALZOTTO V., SCAPIN V., SCHWEIZER T., SHAYDUK M., SHORE S.N., SIDRO N., SIERPOWSKA-BARTOSIK A., SILLANPAA A., SITAREK J., SOBCZYNSKA D., SPANIER F., STAMERRA A., STARK L.S., TAKALO L., TAVECCHIO F., TEMNIKOV P., TESCARO D., TESHIMA M., TLUCZYKONT M., TORRES D.F., TURINI N., VANKOV H., WAGNER R.M., WITTEK W., ZABALZA V., ZANDANEL F., ZANIN R. and ZAPATERO J.

Abstract (from CDS):

Based on MAGIC observations from 2007 June to July, we have obtained an integral upper limit to the VHE energy emission of the globular cluster M13 of F(E>200 GeV) < 5.1x10–12/cm2/s, and differential upper limits for E > 140 GeV. Those limits allow us to constrain the population of millisecond pulsars within M13 and to test models for acceleration of leptons inside their magnetospheres and surrounding. We conclude that in M13 either millisecond pulsars are fewer than expected or they accelerate leptons less efficiently than predicted.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: observations - globular clusters: individual: M13

Simbad objects: 6

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Number of rows : 6
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
3 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
4 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
5 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 948 1
6 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0

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