Ultralight Thomas-Fermi dark matter

被引：7
作者：
Pal, K. [1 ]
Sales, L., V [1 ]
Wudka, J. [1 ]
机构：
[1] UC Riverside, Dept Phys & Astron, Riverside, CA 92521 USA
来源：
PHYSICAL REVIEW D | 2019年 / 100卷 / 08期
关键词：
ROTATION CURVES; GALAXY; DIVERSITY; CORES; LIGHT; BULGE; MODEL; HALO;
D O I：
10.1103/PhysRevD.100.083007
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the viability of a simple dark matter (DM) model consisting of a single fermion in the context of galactic dynamics. We use a consistent approach that does not presume a particular DM density profile, but instead requires that the DM + baryon system is in hydrostatic equilibrium, an approach similar to the one used in the Thomas-Fermi model of the atom. Using a phenomenological baryon density profile, the model then predicts the DM distribution with a corelike behavior close to the galactic center. The presence of supermassive black holes in the center of large galaxies arise naturally in this framework. Using data from a set of large elliptical and spiral galaxies, and from a small set of dwarf galaxies, we find that the model can explain most of the bulk galactic properties, as well as some of the features observed in the rotation curves, provided the DM mass is in the O(50 eV) range. More precise tests of the model require better modeling of the baryon profile, and a better control on the uncertainties in the data.
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页数：14
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共 51 条
  • [1] First Direct-Detection Constraints on eV-Scale Hidden-Photon Dark Matter with DAMIC at SNOLAB
    Aguilar-Arevalo, A.
    Amidei, D.
    Bertou, X.
    Butner, M.
    Cancelo, G.
    Castaneda Vazquez, A.
    Cervantes Vergara, B. A.
    Chavarria, A. E.
    Chavez, C. R.
    de Mello Neto, J. R. T.
    D'Olivo, J. C.
    Estrada, J.
    Fernandez Moroni, G.
    Gaior, R.
    Guardincerri, Y.
    Hernandez Torres, K. P.
    Izraelevitch, F.
    Kavner, A.
    Kilminster, B.
    Lawson, I.
    Letessier-Selvon, A.
    Liao, J.
    Matalon, A.
    Mello, V. B. B.
    Molina, J.
    Privitera, P.
    Ramanathan, K.
    Sarkis, Y.
    Schwarz, T.
    Settimo, M.
    Sofo Haro, M.
    Thomas, R.
    Tiffenberg, J.
    Tiouchichine, E.
    Torres Machado, D.
    Trillaud, F.
    You, X.
    Zhou, J.
    [J]. PHYSICAL REVIEW LETTERS, 2017, 118 (14)
  • [2] Gravitationally bound BCS state as dark matter
    Alexander, Stephon
    Cormack, Sam
    [J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2017, (04):
  • [3] Results on MeV-scale dark matter from a gram-scale cryogenic calorimeter operated above ground
    Angloher, G.
    Bauer, P.
    Bento, A.
    Bucci, C.
    Canonica, L.
    Defay, X.
    Erb, A.
    Feilitzsch, F. V.
    Iachellini, N. Ferreiro
    Gorla, P.
    Guetlein, A.
    Hauff, D.
    Jochum, J.
    Kiefer, M.
    Kluck, H.
    Kraus, H.
    Lanfranchi, J. -C.
    Langenkaemper, A.
    Loebell, J.
    Mancuso, M.
    Mondragon, E.
    Muenster, A.
    Oberauer, L.
    Pagliarone, C.
    Petricca, F.
    Potzel, W.
    Proebst, F.
    Puig, R.
    Reindl, F.
    Rothe, J.
    Schaffner, K.
    Schieck, J.
    Schoenert, S.
    Seidel, W.
    Stahlberg, M.
    Stodolsky, L.
    Strandhagen, C.
    Strauss, R.
    Tanzke, A.
    Thi, H. H. Trinh
    Tuerkoglu, C.
    Uffinger, M.
    Ulrich, A.
    Usherov, I.
    Wawoczny, S.
    Willers, M.
    Wuestrich, M.
    Zoeller, A.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (09):
  • [4] Dark Matter Search Results from a One Ton-Year Exposure of XENON1T
    Aprile, E.
    Aalbers, J.
    Agostini, F.
    Alfonsi, M.
    Althueser, L.
    Amaro, F. D.
    Anthony, M.
    Arneodo, F.
    Baudis, L.
    Bauermeister, B.
    Benabderrahmane, M. L.
    Berger, T.
    Breur, P. A.
    Brown, A.
    Brown, A.
    Brown, E.
    Bruenner, S.
    Bruno, G.
    Budnik, R.
    Capelli, C.
    Cardoso, J. M. R.
    Cichon, D.
    Coderre, D.
    Colijn, A. P.
    Conrad, J.
    Cussonneau, J. P.
    Decowski, M. P.
    de Perio, P.
    Di Gangi, P.
    Di Giovanni, A.
    Diglio, S.
    Elykov, A.
    Eurin, G.
    Fei, J.
    Ferella, A. D.
    Fieguth, A.
    Fulgione, W.
    Rosso, A. Gallo
    Galloway, M.
    Gao, F.
    Garbini, M.
    Geis, C.
    Grandi, L.
    Greene, Z.
    Qiu, H.
    Hasterok, C.
    Hogenbirk, E.
    Howlett, J.
    Itay, R.
    Joerg, F.
    [J]. PHYSICAL REVIEW LETTERS, 2018, 121 (11)
  • [5] Barranco J., ARXIV181111125
  • [6] Stellar mass-to-light ratios and the Tully-Fisher relation
    Bell, EF
    de Jong, RS
    [J]. ASTROPHYSICAL JOURNAL, 2001, 550 (01) : 212 - 229
  • [7] Asymmetric inflationary reheating and the nature of mirror universe
    Berezhiani, ZG
    Dolgov, AD
    Mohapatra, RN
    [J]. PHYSICS LETTERS B, 1996, 375 (1-4) : 26 - 36
  • [8] Bethe H.A., 1986, Intermediate Quantum Mechanics
  • [9] Can dark matter be a Bose-Einstein condensate?
    Bohmer, C. G.
    Harko, T.
    [J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2007, (06):
  • [10] Boveia A, 2018, ANNU REV NUCL PART S, V68, P429, DOI [10.1146/annurev-nucl-101917021008, 10.1146/annurev-nucl-101917-021008]
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