Dark matter and pulsar model constraints from Galactic Center Fermi-LAT gamma-ray observations
作者： Chris Gordon , Oscar Macías
DOI: 10.1103/PHYSREVD.88.083521
关键词: Astrophysics 、 Pulsar 、 Astronomy 、 Point source 、 Population 、 Fermi Gamma-ray Space Telescope 、 Dark matter 、 Physics 、 Millisecond pulsar 、 Galaxy 、 Galactic Center 、 Nuclear and High Energy Physics
摘要: Employing Fermi-LAT gamma ray observations, several independent groups have found excess extended emission at the Galactic center (GC). Both, annihilating dark matter (DM) or a population of $\sim 10^3$ unresolved millisecond pulsars (MSPs) are regarded as well motivated possible explanations. However, there is significant uncertainties in diffuse galactic background GC. We performed revaluation these two models for source GC by accounting systematic model. also marginalize over point and parameters region interest. show that significantly more than source. find DM (or population) signal larger errors therefore proceed to determine sectors parameter space provide an acceptable fit data. order 1000 MSPs with consistent average spectral shape measured was able emission. For DM, we pure $\tau^+\tau^-$ annihilation channel not good But mixture $b\bar{b}$ $\left $ thermal relic value mass around 20 60 GeV provides adequate fit.
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Carlos S. Frenk, Simon D.M. White, Julio F. Navarro, The Structure of cold dark matter halos The Astrophysical Journal. ,vol. 462, pp. 563- 575 ,(1996) , 10.1086/177173
Dan Hooper, Ilias Cholis, Tim Linden, Jennifer M. Siegal-Gaskins, Tracy R. Slatyer, Millisecond pulsars cannot account for the inner Galaxy’s GeV excess Physical Review D. ,vol. 88, pp. 083009- ,(2013) , 10.1103/PHYSREVD.88.083009
Stefano Profumo, TASI 2012 Lectures on Astrophysical Probes of Dark Matter arXiv: High Energy Physics - Phenomenology. ,(2013)
Alexey Boyarsky, Carlos S. Frenk, Simon D. M. White, Oleg Ruchayskiy, Vincent R. Eke, Liang Gao, Liang Gao, Jiaxin Han, Jiaxin Han, Jiaxin Han, Denys Malyshev, Constraining extended gamma-ray emission from galaxy clusters Monthly Notices of the Royal Astronomical Society. ,vol. 427, pp. 1651- 1665 ,(2012) , 10.1111/J.1365-2966.2012.22080.X
Dan Hooper, Tim Linden, On The Origin Of The Gamma Rays From The Galactic Center Physical Review D. ,vol. 84, pp. 123005- ,(2011) , 10.1103/PHYSREVD.84.123005
Alex Geringer-Sameth, Savvas M. Koushiappas, Exclusion of canonical weakly interacting massive particles by joint analysis of Milky Way dwarf galaxies with data from the Fermi Gamma-Ray Space Telescope. Physical Review Letters. ,vol. 107, pp. 241303- ,(2011) , 10.1103/PHYSREVLETT.107.241303
Anatoly Klypin, Rachel S. Somerville, HongSheng Zhao, ΛCDM-based Models for the Milky Way and M31. I. Dynamical Models The Astrophysical Journal. ,vol. 573, pp. 597- 613 ,(2002) , 10.1086/340656
M. Ackermann, M. Ajello, A. Albert, W. B. Atwood, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, J. Bregeon, M. Brigida, P. Bruel, R. Buehler, T. H. Burnett, S. Buson, G. A. Caliandro, R. A. Cameron, B. Cañadas, P. A. Caraveo, J. M. Casandjian, C. Cecchi, E. Charles, A. Chekhtman, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, S. Cutini, A. de Angelis, F. de Palma, C. D. Dermer, S. W. Digel, E. do Couto e Silva, P. S. Drell, A. Drlica-Wagner, L. Falletti, C. Favuzzi, S. J. Fegan, E. C. Ferrara, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, I. A. Grenier, S. Guiriec, M. Gustafsson, D. Hadasch, M. Hayashida, E. Hays, R. E. Hughes, T. E. Jeltema, G. Jóhannesson, R. P. Johnson, A. S. Johnson, T. Kamae, H. Katagiri, J. Kataoka, J. Knödlseder, M. Kuss, J. Lande, L. Latronico, A. M. Lionetto, M. Llena Garde, F. Longo, F. Loparco, B. Lott, M. N. Lovellette, P. Lubrano, G. M. Madejski, M. N. Mazziotta, J. E. McEnery, J. Mehault, P. F. Michelson, W. Mitthumsiri, T. Mizuno, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, M. Naumann-Godo, J. P. Norris, E. Nuss, T. Ohsugi, A. Okumura, N. Omodei, E. Orlando, J. F. Ormes, M. Ozaki, D. Paneque, D. Parent, M. Pesce-Rollins, M. Pierbattista, F. Piron, G. Pivato, T. A. Porter, S. Profumo, S. Rainò, M. Razzano, A. Reimer, O. Reimer, S. Ritz, M. Roth, H. F.-W. Sadrozinski, C. Sbarra, J. D. Scargle, T. L. Schalk, C. Sgrò, E. J. Siskind, G. Spandre, P. Spinelli, L. Strigari, D. J. Suson, H. Tajima, H. Takahashi, T. Tanaka, J. G. Thayer, J. B. Thayer, D. J. Thompson, L. Tibaldo, M. Tinivella, D. F. Torres, E. Troja, Y. Uchiyama, J. Vandenbroucke, V. Vasileiou, G. Vianello, V. Vitale, A. P. Waite, P. Wang, B. L. Winer, K. S. Wood, M. Wood, Z. Yang, S. Zimmer, M. Kaplinghat, G. D. Martinez, , Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope Physical Review Letters. ,vol. 107, pp. 241302- 241302 ,(2011) , 10.1103/PHYSREVLETT.107.241302
Wolfgang A. Rolke, Angel M. López, Jan Conrad, Limits and confidence intervals in the presence of nuisance parameters Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. ,vol. 551, pp. 493- 503 ,(2005) , 10.1016/J.NIMA.2005.05.068
Aous A Abdo, Markus Ackermann, Marco Ajello, William B Atwood, Magnus Axelsson, Luca Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, BM Baughman, K Bechtol, R Bellazzini, B Berenji, RD Blandford, ED Bloom, Emanuele Bonamente, AW Borgland, J Bregeon, A Brez, M Brigida, Pascal Bruel, TH Burnett, GA Caliandro, RA Cameron, PA Caraveo, JM Casandjian, Claudia Cecchi, Ö Çelik, E Charles, S Chaty, A Chekhtman, CC Cheung, J Chiang, S Ciprini, R Claus, J Cohen-Tanugi, J Conrad, S Cutini, CD Dermer, F De Palma, SW Digel, M Dormody, E do Couto e Silva, PS Drell, R Dubois, D Dumora, C Farnier, C Favuzzi, SJ Fegan, WB Focke, M Frailis, Y Fukazawa, Piergiorgio Fusco, F Gargano, D Gasparrini, N Gehrels, S Germani, B Giebels, N Giglietto, Francesco Giordano, T Glanzman, G Godfrey, IA Grenier, JE Grove, L Guillemot, S Guiriec, Y Hanabata, AK Harding, M Hayashida, E Hays, D Horan, RE Hughes, G Jóhannesson, AS Johnson, RP Johnson, TJ Johnson, WN Johnson, T Kamae, H Katagiri, N Kawai, M Kerr, Jürgen Knödlseder, F Kuehn, M Kuss, J Lande, L Latronico, M Lemoine-Goumard, Francesco Longo, Francesco Loparco, B Lott, MN Lovellette, P Lubrano, A Makeev, MN Mazziotta, W McConville, JE McEnery, C Meurer, PF Michelson, W Mitthumsiri, T Mizuno, AA Moiseev, C Monte, ME Monzani, A Morselli, IV Moskalenko, S Murgia, PL Nolan, JP Norris, E Nuss, T Ohsugi, N Omodei, E Orlando, JF Ormes, D Paneque, JH Panetta, D Parent, V Pelassa, M Pepe, M Pierbattista, F Piron, TA Porter, Silvia Raino, Riccardo Rando, M Razzano, N Rea, A Reimer, O Reimer, T Reposeur, S Ritz, LS Rochester, AY Rodriguez, RW Romani, M Roth, F Ryde, HF-W Sadrozinski, D Sanchez, A Sander, PM Saz Parkinson, C Sgrò, DA Smith, PD Smith, G Spandre, Paolo Spinelli, J-L Starck, MS Strickman, DJ Suson, H Tajima, H Takahashi, T Tanaka, JB Thayer, Detection of High-Energy Gamma-Ray Emission from the Globular Cluster 47 Tucanae with Fermi Science. ,vol. 325, pp. 845- 848 ,(2009) , 10.1126/SCIENCE.1177023