Magic observations of very high energy γ-rays from HESS J1813-178

被引：36

作者：

Albert, J

Aliu, E

Anderhub, H

Antoranz, P

Armada, A

Asensio, M

Baixeras, C

Barrio, JA

Bartel, M

Bartko, H ^{[7
]}

Bastieri, D

Bavikadi, R

Bednarek, W

Berger, K

Bigongiari, C

Biland, A

Bisesi, E

Blanch, O

Bock, RK

Bretz, T

Britvitch, I

Camara, M

Chilingarian, A

Ciprini, S

Coarasa, JA

Commichau, S

Contreras, JL

Cortina, J

Curtev, 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

Fernández, E

Firpo, R

Flix, J

Fonseca, MV

Font, L

Galante, N

Garczarczyk, M

Gaug, M

Gebauer, J

Giller, M

机构：

[1] Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain

[2] ETH Honggerberg, CH-8093 Zurich, Switzerland

[3] Univ Complutense, E-28040 Madrid, Spain

[4] Univ Autonoma Barcelona, E-08193 Bellaterra, Spain

[5] Univ Dortmund, D-44227 Dortmund, Germany

[6] Univ Wurzburg, D-97074 Wurzburg, Germany

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

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

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

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

[11] INFN Trieste, Udine, Italy

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

[13] Yerevan Phys Inst, AM-375036 Yerevan, Armenia

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

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

[16] INFN Pisa, I-53100 Siena, Italy

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

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

[19] Inst Nucl Energy Res, BG-1784 Sofia, Bulgaria

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 637卷 / 01期

关键词：

acceleration of particles; gamma rays : observations; supernova remnants;

D O I：

10.1086/500364

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, the HESS collaboration has reported the detection of gamma-ray emission above a few hundred GeV from eight new sources located close to the Galactic plane. The source HESS J1813-178 has sparked particular interest, as subsequent radio observations imply an association with supernova remnant G12.82-0.02. Triggered by the detection in very high energy gamma-rays, a positionally coincident source has also been found in INTEGRAL and ASCA data. In this Letter we present MAGIC observations of HESS J1813-178, resulting in the detection of a differential gamma-ray flux consistent with a hard-slope power law, described as dN(gamma)/(dA dt dE) = (3.3 +/- 0.5) x 10(-12)(E/TeV)(-2.1 +/- 0.2) cm(-2) s(-1) TeV-1. We briefly discuss the observational technique used and the procedure implemented for the data analysis, and we put this detection in the perspective of multifrequency observations.

引用

页码：L41 / L44

页数：4

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