HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation

F Aharonian,O C De Jager,S Pita,H J Völk,D Spangler,C Masterson,G Hermann,G Heinzelmann,A Reimer,F Feinstein,B Degrange,C Hadjichristidis,S M Rayner,D Emmanoulopoulos,C Stegmann,A Marcowith,V Borrel,P Espigat,L Rolland,H Sol,Y A Gallant,I Büsching,G Fontaine,B Khélifi,Nu Komin,M Ouchrif,A M Brown,M Panter,G Henri,G Rowell,J F Glicenstein,D Berge,S J Wagner,S Carrigan,H J Dickinson,M Raue,A Konopelko,O Bolz,I Braun,F Breitling,T J L Mccomb,R Terrier,A G Akhperjanian,U Schwanke,D Horns,K Kosack,I J Latham,W Benbow,M Beilicke,C Van Eldik,E Ferrero,K J Orford,G Vasileiadis,M Holleran,K Bernlöhr,R Cornils,D Nedbal,R Steenkamp,G Pühlhofer,R Le Gallou,P Vincent,S J Nolan,K Egberts,B Giebels,C Venter,L Rob,M Tluczykont,C Boisson,J Ripken,A Noutsos,P M Chadwick,V Sahakian,C G Théoret,G Pelletier,F Spanier,A Lemière,L Saugé,J A Hinton,D Hauser,P Goret,W Hofmann,R Bühler,G Superina,G Dubus,M Hauser,S Schlenker,L O’C Drury,L Costamante,M De Naurois,M Punch,R Schlickeiser,J.‐P Tavernet ,A Jachołkowska ,John Osborne ,L.‐M Chounet ,T Löhse ,A Djannati-Ataı̈ ,Jean‐Michel Martin ,O Martineau‐Huynh ,M Lemoine‐Goumard ,Sebastian Funk ,Britt Raubenheimer ,A R Bazer‐Bachi ,A Fiaßon ,M J Ward

doi:10.1103/physrevlett.97.221102

HESS Observations of the Galactic Center Region and Their Possible Dark Matter Interpretation

F Aharonian, O C De Jager + Show 103 more

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https://doi.org/10.1103/physrevlett.97.221102

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Journal: Physical Review Letters	Publication Date: Nov 30, 2006
Citations: 192

Affiliation: Max Planck Institute for Nuclear Physics, North-West University, Durham University, Universität Hamburg, Ruhr University Bochum, Institut National de Physique Nucléaire et de Physique des Particules, University of Montpellier, Laboratoire de Physique Théorique, French National Centre for Scientific Research, École Polytechnique, Leprince-Ringuet Laboratory, Institut Polytechnique de Paris, Humboldt-Universität zu Berlin, Université Toulouse III - Paul Sabatier, Atomic Energy and Alternative Energies Commission, Direction des énergies, CEA Saclay, Sorbonne Université, Laboratoire de Physique Nucléaire et de Hautes Énergies, Paris Observatory, Joseph Fourier University, Alikhanyan National Laboratory, Charles University, University of Namibia, Heidelberg University, Dublin Institute For Advanced Studies

#High Energy Spectroscopic System #Array Of Cherenkov Telescopes + Show 8 more

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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.

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