| HAL : hal-00628187, version 1 |
| arXiv : astro-ph/0601298 |
| Code Bibliographique ADS : 2006A&A...450....1L |
| DOI : 10.1051/0004-6361:20054340 |
| Fiche détaillée | Récupérer au format |
|
|
| Astronomy and Astrophysics 450 (2006) 1-8 |
|
|
|
|
| Indirect search for dark matter in M 31 with the CELESTE experiment |
|
|
| J. Lavalle1H. Manseri2A. Jacholkowska1E. Brion3R. Britto1P. Bruel2J. Bussons Gordo1D. Dumora3E. Durand3E. Giraud1B. Lott3F. Münz4E. Nuss1F. Piron1T. Reposeur3D. A. Smith3 |
|
|
| CELESTE Collaboration(s) |
|
|
| (04/2006) |
|
|
| Context: .If dark matter is made of neutralinos, annihilation of such Majorana particles should produce high energy cosmic rays, especially in galaxy halo high density regions like galaxy centres. Aims: .M 31 (Andromeda) is our nearest neighbour spiral galaxy, and both its high mass and its low distance make it a source of interest for the indirect search for dark matter through γ-ray detection. Methods: .The ground based atmospheric Cherenkov telescope CELESTE observed M 31 from 2001 to 2003, in the mostly unexplored energy range 50-500 GeV. Results: .These observations provide an upper limit on the flux above 50 GeV around 10-10 cm-2 s-1 in the frame of supersymmetric dark matter, and more generally on any gamma emission from M 31. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Domaine | : | Physique/Astrophysique/Phénomènes cosmiques de haute energie Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie Physique/Physique des Hautes Energies - Phénoménologie |
|
|
| dark matter – indirect detection – gamma-ray astronomy |
|
|
| Lien vers le texte intégral : |
| hal-00628187, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00628187 | |
| oai:hal.archives-ouvertes.fr:hal-00628187 | |
| Contributeur : Julien Lavalle | |
| Soumis le : Vendredi 30 Septembre 2011, 15:56:12 | |
| Dernière modification le : Vendredi 3 Août 2012, 16:59:52 | |