Search for TeV gamma ray emission from the Andromeda galaxy

被引：20

作者：

Aharonian, FA

Akhperjanian, AG

Beilicke, M

Bernlöhr, K

Bojahr, H

Bolz, O

Börst, H

Coarasa, T

Contreras, JL

Cortina, J

Denninghoff, S

Fonseca, V

Girma, M

Götting, N

Heinzelmann, G

Hermann, G

Heusler, A

Hofmann, W

Horns, D

Jung, I

Kankanyan, R

Kestel, M

Kettler, J

Kohnle, A

Konopelko, A

Kornmeyer, H

Kranich, D

Krawczynski, H

Lampeitl, H

Lopez, M

Lorenz, E

Lucarelli, F

Mang, O

Meyer, H

Mirzoyan, R

Moralejo, A

Ona, E

Panter, M

Plyasheshnikov, A

Pühlhofer, G

Rauterberg, G

Reyes, R

Rhode, W

Ripken, J

Röhring, A

Rowell, GP

Sahakian, V

Samorski, M

Schilling, M

Siems, M

机构：

[1] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

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

[3] Univ Complutense, Fac Ciencias Fis, E-28040 Madrid, Spain

[4] Univ Hamburg, Inst Phys Expt, D-22761 Hamburg, Germany

[5] Univ Kiel, Inst Expt & Angew Phys, D-24118 Kiel, Germany

[6] Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany

[7] Yerevan Phys Inst, Yerevan 375036, Armenia

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 400卷 / 01期

关键词：

gamma rays : observations; galaxies : individual : M 31; dark matter;

D O I：

10.1051/0004-6361:20021895

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the HEGRA system of imaging atmospheric Cherenkov telescopes, the Andromeda galaxy (M31) was surveyed for TeV gamma ray emission. Given the large field of view of the HEGRA telescopes, three pointings were sufficient to cover all of M31, including also M32 and NGC 205. No indications for point sources of TeV gamma rays were found. Upper limits are given at a level of a few percent of the Crab flux. A specific search for monoenergetic gamma-ray lines from annihilation of supersymmetric dark matter particles accumulating near the center of M31 resulted in flux limits in the 10(-13) cm(-2) s(-1) range, well above the predicted MSSM flux levels except for models with pronounced dark-matter spikes or strongly enhanced annihilation rates.

引用

页码：153 / 159

页数：7

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