Flux upper limit on gamma-ray emission by GRB 050713a from magic telescope observations

被引：50

作者：

Albert, J ^{[1
]}

Aliu, E

Anderhub, H

Antoranz, P

Armada, A

Asensio, M

Baixeras, C

Barrio, JA

Bartelt, M

Bartko, H

Bastieri, D

Bavikadi, R

Bednarek, W

Berger, K

Bigongiari, C

Biland, A

Bisesi, E

Bock, RK

Bretz, T

Britvitch, I

Camara, M

Chilingarian, A

Ciprini, S

Coarasa, JA

Commichau, S

Contreras, JL

Cortina, J

Curtef, V

Danielyan, V

Dazzi, F

De Angelis, A

De Los Reyes, R

De Lotto, B

Domingo-Santamaría, E

Dorner, D

Doro, M

Errando, M

Fagiolini, M

Ferenc, D

Fernández, E

Firpo, R

Flix, J

Fonseca, MV

Font, L

Galante, N

Garczarczyk, M

Gaug, M

Giller, M

Goebel, F

Hakobyan, D

机构：

[1] Univ Wurzburg, Lehrstuhl Astron, D-97074 Wurzburg, Germany

[2] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[3] ETH Honggerberg, Inst Particle Phys, CH-8093 Zurich, Switzerland

[4] Univ Complutense Madrid, Grp Altas Energias, Dept Fis Atom Mol & Nucl, E-28040 Madrid, Spain

[5] Univ Autonoma Barcelona, Dept Fis, Grp Fis Radiac, E-08193 Barcelona, Spain

[6] Univ Dortmund, Fachbereich Phys, D-44212 Dortmund, Germany

[7] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[8] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy

[9] Ist Nazl Fis Nucl, I-35131 Padua, Italy

[10] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy

[11] Ist Nazl Fis Nucl, I-33100 Udine, Italy

[12] Univ Lodz, Inst Fizyki, PL-90236 Lodz, Poland

[13] Yerevan Phys Inst, Cosm Ray Div, Yerevan 375036, Armenia

[14] Tuorla Observ, FI-21500 Piikkio, Finland

[15] Univ Siena, Dipartimento Fis, I-53100 Siena, Italy

[16] Ist Nazl Fis Nucl, I-53100 Siena, Italy

[17] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[18] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[19] Osserv Astron Trieste, INAF, I-34131 Trieste, Italy

[20] Ist Nazl Fis Nucl, I-34131 Trieste, Italy

[21] Inst Yadreni Izsledvaniya & Yadena Energet, BG-1784 Sofia, Bulgaria

[22] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

[23] Ist Nazl Fis Nucl, I-56127 Pisa, Italy

[24] Univ Autonoma Barcelona, Inst Ciencies Espai, E-08193 Barcelona, Spain

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 641卷 / 01期

关键词：

gamma rays : bursts; gamma rays : observations;

D O I：

10.1086/503767

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The long-duration gamma-ray burst GRB 050713a was observed by the MAGIC Telescope 40 s after the burst onset and followed up for 37 minutes, until twilight. The observation, triggered by a Swift alert, covered energies above approximate to 175 GeV. Using standard MAGIC analysis, no evidence of a gamma-ray signal was found. As the redshift of the GRB was not measured directly, the flux upper limit estimated by MAGIC is still compatible with the assumption of an unbroken power-law spectrum extending from a few hundred keV to our energy range.

引用

页码：L9 / L12

页数：4

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