Observation of VHE gamma radiation from HESS J1834-087/W41 with the MAGIC telescope

被引：47

作者：

Albert, J. ^{[1
]}

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.

Bordas, P.

Bosch-Ramon, V.

Bretz, T.

Britvitch, I.

Camara, M.

Carmona, E.

Chilingarian, A.

Ciprini, S.

Coarasa, J. A.

Commichau, S.

Contreras, J. L.

Cortina, J.

Curtef, V.

Dame, T. M.

Danielyan, V.

Dazzi, F.

De Angelis, A.

Reyes, R. de los

De Lotto, B.

Domingo-Santamari, E.

Dorner, D.

Doro, M.

Errando, M.

Fagiolini, M.

Ferenc, D.

Fernandez, E.

Firpo, R.

Flix, J.

Fonseca, M. V.

Font, L.

Fuchs, M.

Galante, N.

机构：

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

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

[3] ETH, CH-8093 Zurich, Switzerland

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

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

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

[7] Univ Wurzburg, D-97074 Wurzburg, 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, I-33100 Udine, Italy

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

[13] Univ Barcelona, E-08028 Barcelona, Spain

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

[15] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

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

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

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

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

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

[21] Univ Trieste, I-34100 Trieste, Italy

[22] Ist Nazl Fis Nucl, I-34100 Trieste, Italy

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

[24] Osserv Astron Trieste, I-34100 Trieste, Italy

[25] Univ Pisa, I-56126 Pisa, Italy

[26] INFN Pisa, I-56126 Pisa, Italy

[27] Inst Ciencies Espai, E-08193 Barcelona, Spain

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 643卷 / 01期

关键词：

gamma rays : observations; supernova remnants;

D O I：

10.1086/504917

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, the HESS array 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 J1834 - 087 is spatially coincident with the supernova remnant G23.3 - 0.3 (W41). Here we present MAGIC observations of this source, resulting in the detection of a differential gamma-ray flux consistent with a power law, described as dN(gamma)/(dA dt dE) = (3.7 +/- 0.6) x 10(-12) (E/TeV)(-2.5 +/- 0.2) cm(-2) s(-1) TeV-1. We confirm the extended character of this flux. We briefly discuss the observational technique used and the procedure implemented for the data analysis, and we put this detection in the perspective of the molecular environment found in the region of W41. We present (CO)-C-13 and (CO)-C-12 emission maps showing the existence of a massive molecular cloud in spatial superposition with the MAGIC detection.

引用

页码：L53 / L56

页数：4

共 31 条

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