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18 April 2024

» pubmed » pmid17155788

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HESS observations of the galactic center region and their possible dark matter interpretation
F Aharonian ; A G Akhperjanian ; A R Bazer-Bachi ; M Beilicke ; W Benbow ; D Berge ; K Bernlöhr ; C Boisson ; O Bolz ; V Borrel ; I Braun ; F Breitling ; A M Brown ; R Bühler ; I Büsching ; S Carrigan ; P M Chadwick ; L-M Chounet ; R Cornils ; L Costamante ; B Degrange ; H J Dickinson ; A Djannati-Ataï ; L O’C Drury ; G Dubus ; K Egberts ; D Emmanoulopoulos ; P Espigat ; F Feinstein ; E Ferrero ; A Fiasson ; G Fontaine ; Seb Funk ; S Funk ; Y A Gallant ; B Giebels ; J F Glicenstein ; P Goret ; C Hadjichristidis ; D Hauser ; M Hauser ; G Heinzelmann ; G Henri ; G Hermann ; J A Hinton ; W Hofmann ; M Holleran ; D Horns ; A Jacholkowska ; O C de Jager ; B Khélifi ; Nu Komin ; A Konopelko ; K Kosack ; I J Latham ; R Le Gallou ; A Lemière ; M Lemoine-Goumard ; T Lohse ; J M Martin ; O Martineau-Huynh ; A Marcowith ; C Masterson ; T J L McComb ; M de Naurois ; D Nedbal ; S J Nolan ; A Noutsos ; K J Orford ; J L Osborne ; M Ouchrif ; M Panter ; G Pelletier ; S Pita ; G Pühlhofer ; M Punch ; B C Raubenheimer ; M Raue ; S M Rayner ; A Reimer ; O Reimer ; J Ripken ; L Rob ; L Roll ; G Rowell ; V Sahakian ; L Saugé ; S Schlenker ; R Schlickeiser ; U Schwanke ; H Sol ; D Spangler ; F Spanier ; R Steenkamp ; C Stegmann ; G Superina ; J-P Tavernet ; R Terrier ; C G Théoret ; M Tluczykont ; C van Eldik ; G Vasileiadis ; C Venter ; P Vincent ; H J Völk ; S J Wagner ; M Ward ; ;
Date:	1 Dec 2006
Journal:	Phys Rev Lett, 97 (22), 221102
Abstract:	The detection of gamma rays from the source HESS J1745-290 in the Galactic Center (GC) region with the High Energy Spectroscopic System (HESS) array of Cherenkov telescopes in 2004 is presented. After subtraction of the diffuse gamma-ray emission from the GC ridge, the source is compatible with a point source with spatial extent less than 1.2;{’}(stat) (95% C.L.). The measured energy spectrum above 160 GeV is compatible with a power law with photon index of 2.25+/-0.04(stat)+/-0.10(syst) and no significant flux variation is detected. It is finally found that the bulk of the very high energy emission must have non-dark-matter origin.
Source:	PubMed, pmid17155788
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