SEARCH FOR DARK MATTER SATELLITES USING<i>FERMI</i>-LAT

Ackermann, M.; Albert, A.; Baldini, Luca; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bottacini, E.; Brandt, T. J.; Bregeon, J.; Brigida, M.; Bruel, Pascal; Buehler, R.; Burnett, T. H.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Casandjian, J. M.; Cecchi, C.; Charles, E.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Conrad, J.; Cutini, S.; Palma, F. de; Dermer, C. D.; Digel, S. W.; Silva, E. Do Couto E; Drell, P. S.; Drlica-Wagner, A.; Essig, Rouven; Falletti, L.; Favuzzi, C.; Fegan, S. J.; Focke, W. B.; Fukazawa, Yasushi; Funk, S.; Fusco, P.; Gargano, F.; Germani, S.; Giglietto, N.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Guiriec, S.; Gustafsson, M.; Hadasch, D.; Hayashida, M.; Hou, X.; Hughes, R. E.; Johnson, R. P.; Johnson, A. S.; Kamae, T.; Katagiri, H.; Kataoka, J.; Knödlseder, J.; Kuss, M.; Landé, J.; Latronico, L.; Lee, S.-H.; Lionetto, Andrea; Garde, M. Llena; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Mazziotta, M. N.; McEnery, J. E.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Моисеев, А. А.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Naumann-Godó, M.; Norris, J. P.; Nuss, E.; Ohsugi, T.; Okumura, A.; Orlando, E.; Ormes, J. F.; Ozaki, Masanori; Paneque, D.; Pelassa, V.; Pierbattista, M.; Piron, F.; Pivato, G.; Porter, T. A.; Rainò, S.; Rando, R.; Razzano, M.; Reimer, A.; Ritz, S.; Sadrozinski, H. F-W.; Sehgal, Neelima; Sgrò, C.; Siskind, E. J.; Spinelli, P.; Strigari, Louis E.; Suson, D. J.; Tajima, H.; Takahashi, H.; Tanaka, Takaaki; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Tinivella, M.; Torres, D. F.; Troja, E.; Uchiyama, Y.; Usher, T.; Vandenbroucke, J.; Vasileiou, V.; Vianello, G.; Vitale, V.; Waite, A. P.; Wang, P.; Winer, B. L.; Wood, K. S.; Yang, Z.; Zalewski, Sheridan Henryk; Zimmer, S.

doi:10.1088/0004-637x/747/2/121

Cited by 158 publications

(130 citation statements)

References 48 publications

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“…To date, Fermi data has been used to search for dark matter annihilation products from dwarf spheroidal galaxies [1,2], galaxy clusters [3][4][5], the Galactic Halo [6], galactic subhalos [7], and from among the isotropic gamma-ray background [8,9]. The most stringent of these constraints are beginning to probe annihilation cross sections at or around the value predicted for a simple thermal relic (σv ∼ 3×10 −26 cm 3 /s) 1 , at least for dark matter particles with masses below a few tens of GeV and which annihilate to final states which result in significant fluxes of gamma-rays.…”

Section: Introductionmentioning

confidence: 99%

Stringent constraints on the dark matter annihilation cross section from the region of the Galactic Center

Hooper

Kelso

Queiroz

2013

Astroparticle Physics

157

197

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For any realistic halo profile, the Galactic Center is predicted to be the brightest source of gammarays from dark matter annihilations. Due in large part to uncertainties associated with the dark matter distribution and astrophysical backgrounds, however, the most commonly applied constraints on the dark matter annihilation cross section have been derived from other regions, such as dwarf spheroidal galaxies. In this article, we study Fermi Gamma-Ray Space Telescope data from the direction of the inner Galaxy and derive stringent upper limits on the dark matter's annihilation cross section. Even for the very conservative case of a dark matter distribution with a significant (∼kpc) constant-density core, normalized to the minimum density needed to accommodate rotation curve and microlensing measurements, we find that the Galactic Center constraint is approximately as stringent as those derived from dwarf galaxies (which were derived under the assumption of an NFW distribution). For NFW or Einasto profiles (again, normalized to the minimum allowed density), the Galactic Center constraints are typically stronger than those from dwarfs.

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Section: Introductionmentioning

confidence: 99%

Stringent constraints on the dark matter annihilation cross section from the region of the Galactic Center

Hooper

Kelso

Queiroz

2013

Astroparticle Physics

157

197

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“…As the a couples primarily to tau leptons in the large tan β limit, which decay into final states with large number of photons, the primary indirect detection search channel will be gamma rays. Areas of expected high density dark matter in our Galaxy can be found in nearby satellite galaxies [44,[86][87][88], extra-Galactic sources [89][90][91][92][93], or the Milky Way Galactic Center. A notable excess of gamma rays coming from the Galactic Center has been reported by various analyses of Fermi Gamma-Ray Space Telescope (FGST) data [43][44][45][46].…”

Section: B Indirect Detectionmentioning

confidence: 99%

Dark matter in leptophilic Higgs models after the LHC run I

Buckley¹,

Feld²

2015

Phys. Rev. D

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We examine the leptophilic two Higgs doublet model with fermionic dark matter, considering the range of experimental constraints on the Higgs sector. The measurements of the 125 GeV Higgs from the LHC Run-I allow us to focus on those remaining processes that may play an important role at colliders. We find that the leptophilic model allows for a much lighter Higgs than in other two-Higgs models, although discovery at the LHC will be difficult. Adding a dark matter sector motivated by supersymmetric extensions of the leptophilic model, we find the existing parameter space can accommodate constraints from direct detection and the invisible widths of the Higgs and Z, while also fitting the Galactic Center gamma ray excess reported by analyses of Fermi-LAT data. We also discuss the status of the fully supersymmetric version of such models, which include four Higgs doublets and a natural dark matter candidate.

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“…Other complementary limits were obtained with the search of possible anisotropies generated by the DM halo substructures [15], the search for Dark Matter Satellites [16] or in the Galactic Halo [17] and a search for high-energy cosmic-ray electrons from the Sun [18].…”

Section: Dwarf Galaxiesmentioning

confidence: 99%

Dark Matter Searches with the Fermi Large Area Telescope

Morselli¹

2013

Proceedings of 36th International Conference on High Energy Physics — PoS(ICHEP2012)

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Can we learn about New Physics with astronomical and astro-particle data? Since its launch in 2008, the Large Area Telescope, onboard of the Fermi Gamma-ray Space Telescope, has detected the largest amount of gamma rays in the 20MeV 300GeV energy range and electrons + positrons in the 7 GeV-1 TeV range. These impressive statistics allow one to perform a very sensitive indirect experimental search for dark matter. I will present the latest results on these searches and the comparison with LHC searches.

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SEARCH FOR DARK MATTER SATELLITES USINGFERMI-LAT

Cited by 158 publications

References 48 publications

Stringent constraints on the dark matter annihilation cross section from the region of the Galactic Center

Stringent constraints on the dark matter annihilation cross section from the region of the Galactic Center

Dark matter in leptophilic Higgs models after the LHC run I

Dark Matter Searches with the Fermi Large Area Telescope

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