Detection of TeV γ-ray emission from the shell-type supernova remnant RX J0852.0-4622 with HESS

被引：177
|
作者：
Aharonian, FA [1 ]
Akhperjanian, AGA
Bazer-Bachi, AR
Beilicke, MB
Benbow, WB
Berge, DB
Bernlöhr, K
Boisson, C
Bolz, O
Borrel, V
Braun, I
Breitling, F
Brown, AM
Chadwick, PM
Chounet, LM
Cornils, R
Costamante, L
Degrange, B
Dickinson, HJ
Djannati-Atai, A
Drury, LOC
Dubus, G
Emmanoulopoulos, D
Espigat, P
Feinstein, F
Fontaine, G
Fuchs, Y
Funk, S
Gallant, YA
Giebels, B
Gillessen, S
Glicenstein, JF
Goret, P
Hadjichristidis, C
Hauser, M
Heinzelmann, G
Henri, G
Hermann, G
Hinton, JA
Hofmann, W
Holleran, M
Horns, D
Jacholkowska, A
de Jager, OC
Khélifi, B
Komin, N
Konopelko, A
Latham, IJ
Le Gallou, R
Lemière, A
机构：
[1] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany
[2] Yerevan Phys Inst, Yerevan, Armenia
[3] UPS, CNRS, Ctr Etud Spatiale Rayonnements, Toulouse, France
[4] Univ Hamburg, Inst Expt Phys, Hamburg, Germany
[5] Humboldt Univ, Inst Phys, D-1086 Berlin, Germany
[6] CNRS, UMR 8102, LUTH, Meudon Sect, F-75700 Paris, France
[7] Univ Durham, Dept Phys, Durham DH1 3HP, England
[8] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
[9] APC, Paris, France
[10] Dublin Inst Adv Studies, Dublin, Ireland
[11] Konigstuhl, Landessternwarte, Heidelberg, Germany
[12] Univ Montpellier 2, CNRS, IN2P, Lab Phys Theor & Astroparticules, F-34095 Montpellier, France
[13] Univ Grenoble 1, CNRS, ISNU, Lab Astrophys Grenoble, F-38041 Grenoble, France
[14] CE Saclay, CEA, DSM, DAPNIA, Gif Sur Yvette, France
[15] North West Univ, Unit Space Phys, Potchefstroom, South Africa
[16] Univ Paris 06, CNRS, IN2P3, Lab Phys Nucl & Hautes Energies, F-75252 Paris, France
[17] Univ Paris 07, F-75221 Paris, France
[18] Ruhr Univ Bochum, Lehrstuhl 4, Inst Theoret Phys, Bochum, Germany
[19] Charles Univ Prague, Inst Nucl & Particle Phys, Prague, Czech Republic
[20] Univ Namibia, Windhoek, Namibia
来源：
ASTRONOMY & ASTROPHYSICS | 2005年 / 437卷 / 01期
关键词：
gamma rays : observations; supernovae : individual : RX J0852.0-4622 (G266.2-1.2);
D O I：
10.1051/0004-6361:200500130
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the detection of TeV gamma-rays from the shell-type supernova remnant RXJ0852.0-4622 with data of 3.2 h of live time recorded with HESS in February 2004. An excess of ( 700 +/- 60) events from the whole remnant with a significance of 12 sigma was found. The observed emission region is clearly extended with a radius of the order of 1 degrees and the spatial distribution of the signal correlates with X-ray observations. The spectrum in the energy range between 500 GeV and 15 TeV is well described by a power law with a photon index of Gamma = 2.1 +/- 0. 1(stat) +/- 0.2(syst) and a differential flux at 1 TeV of (phi 1TeV) = (2.1 +/- 0.2(stat) +/- 0.6(syst)) x 10(-11) cm(-2) s(-1) TeV-1. The integral flux above 1 TeV was measured to be Phi(E > 1TeV) = (1.9 +/- 0.3(stat) +/- 0.6(syst)) x 10(-11) cm(-2) s(-1), which is at the level of the flux of the Crab nebula at these energies. More data are needed to draw firm, conclusions on the magnetic field in the remnant and the type of the particle population creating the TeV gamma-rays.
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收藏
页码：L7 / L10
页数：4
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