Profile of a galactic spherical cloud of self-gravitating fermions

被引:4
|
作者
Giraud, B. G. [1 ]
Peschanski, R. [1 ]
机构
[1] Ctr Etud Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France
关键词
spheroidal; dwarf; galaxies; mass; dark; elementary; particle; DARK-MATTER; CORES;
D O I
10.1088/1402-4896/ab1959
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The field which binds a thermal fermionic cloud is defined as a Hartree integral upon its density. In turn, the density results from the field via a Thomas-Fermi occupation of the local phase space. This defines a complete theory of all properties and observables for the cloud. As an application to dark matter halos, comparisons with astronomic data on dwarf spheroidal galaxies are provided and discussed. Estimates of the elementary fermion mass are obtained, serving as a phase-space bound on fermionic dark matter.
引用
收藏
页数:9
相关论文
共 50 条
  • [31] Photoionization feedback in a self-gravitating, magnetized, turbulent cloud
    Geen, Sam
    Hennebelle, Patrick
    Tremblin, Pascal
    Rosdahl, Joakim
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 454 (04) : 4484 - 4502
  • [32] EVOLUTION OF SELF-GRAVITATING ACCRETION DISKS IN ACTIVE GALACTIC NUCLEI
    SHLOSMAN, I
    BEGELMAN, MC
    ASTROPHYSICAL JOURNAL, 1989, 341 (02): : 685 - 691
  • [33] Gravitational phase transition of self-gravitating systems of fermions in General Relativity
    Alberti, Giuseppe
    Chavanis, Pierre-Henri
    15TH MARCEL GROSSMANN MEETING, PT A, 2022, : 1304 - 1309
  • [34] DEVELOPMENT OF GRAVITATIONAL INSTABILITY IN SELF-GRAVITATING GAS CLOUD
    HUNTER, C
    ASTROPHYSICAL JOURNAL, 1964, 139 (02): : 570 - &
  • [35] Statistical mechanics and thermodynamic limit of self-gravitating fermions in D dimensions
    Chavanis, Pierre-Henri
    Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2004, 69 (6 2): : 066126 - 1
  • [36] Gravitational phase transitions and instabilities of self-gravitating fermions in general relativity
    Chavanis, Pierre-Henri
    Alberti, Giuseppe
    PHYSICS LETTERS B, 2020, 801
  • [37] Density profile of a self-gravitating polytropic turbulent fluid in a rotating disc near to the cloud core
    Donkov, S.
    Stefanov, I. Zh
    Veltchev, T. V.
    Klessen, R. S.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 527 (02) : 2790 - 2798
  • [38] CONVECTIVE INSTABILITY IN BOUNDED UNIFORM SELF-GRAVITATING SPHERICAL CLOUDS
    BERNSTEIN, IB
    BOOK, DL
    ASTROPHYSICAL JOURNAL, 1981, 251 (01): : 271 - 277
  • [39] On the generation of triaxiality in the collapse of cold spherical self-gravitating systems
    Labini, Francesco Sylos
    Benhaiem, David
    Joyce, Michael
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 449 (04) : 4458 - 4464
  • [40] SPHERICAL SHOCK-WAVE PROPAGATION IN SELF-GRAVITATING STARS
    NATH, O
    TAKHAR, HS
    ASTROPHYSICS AND SPACE SCIENCE, 1991, 178 (01) : 159 - 164