Destruction of axion miniclusters in the Galaxy

被引:33
|
作者
Dokuchaev, V. I. [1 ,2 ]
Eroshenko, Yu. N. [1 ]
Tkachev, I. I. [1 ,3 ]
机构
[1] Russian Acad Sci, Inst Nucl Res, Pr 60-Letiya Oktyabrya 7a, Moscow 117312, Russia
[2] Natl Res Nucl Univ MEPhI, Kashirskoe Sh 31, Moscow 115409, Russia
[3] Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia
基金
俄罗斯科学基金会;
关键词
MASS-DISTRIBUTION; MATTER; DENSITY; DYNAMICS; MODEL; DISK;
D O I
10.1134/S1063776117080039
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Previously, it has been established that axion dark matter (DM) is clustered to form clumps (axion miniclusters) with masses M ae 10(-12) M (aS (TM)). The passages of such clumps through the Earth are very rare events occurring once in 10(5) years. It has also been shown that the Earth's passage through DM streams, which are the remnants of clumps destroyed by tidal gravitational forces from Galactic stars, is a much more probable event occurring once in several years. In this paper, we have performed detailed calculations of the destruction of miniclusters by taking into account their distribution in orbits in the Galactic halo. We have investigated two DM halo models, the Navarro-Frenk-White and isothermal density profiles. Apart from the Galactic disk stars, we have also taken into account the halo and bulge stars. We show that about 2-5% of the axion miniclusters are destroyed when passing near stars and transform into axion streams, while the clump destruction efficiency depends on the DM halo model. The expected detection rate of streams with an overdensity exceeding an order of magnitude is 1-2 in 20 years. The possibility of detecting streams by their tidal gravitational effect on gravitational-wave interferometers is also considered.
引用
收藏
页码:434 / 442
页数:9
相关论文
共 50 条
  • [11] Tidal streams from axion miniclusters and direct axion searches
    Tinyakov, Peter
    Tkachev, Igor
    Zioutas, Konstantin
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2016, (01):
  • [12] Structure formation and microlensing with axion miniclusters
    Fairbairn, Malcolm
    Marsh, David J. E.
    Quevillon, Jeremie
    Rozier, Simon
    PHYSICAL REVIEW D, 2018, 97 (08)
  • [13] Fast radio bursts and axion miniclusters
    Tkachev, I. I.
    JETP LETTERS, 2015, 101 (01) : 1 - 6
  • [14] Fast radio bursts and axion miniclusters
    I. I. Tkachev
    JETP Letters, 2015, 101 : 1 - 6
  • [15] Transient radio lines from axion miniclusters and axion stars
    Witte, Samuel J.
    Baum, Sebastian
    Lawson, Matthew
    Marsh, M. C. David
    Millar, Alexander J.
    Salinas, Gustavo
    PHYSICAL REVIEW D, 2023, 107 (06)
  • [16] Stellar disruption of axion miniclusters in the Milky Way
    Kavanagh, Bradley J.
    Edwards, Thomas D. P.
    Visinelli, Luca
    Weniger, Christoph
    PHYSICAL REVIEW D, 2021, 104 (06)
  • [17] Evidence for axion miniclusters with an increased central density
    Eggemeier, Benedikt
    Anilkumar, Ananthu Krishnan
    Dolag, Klaus
    PHYSICAL REVIEW D, 2024, 110 (04)
  • [18] Using axion miniclusters to disentangle the axion-photon coupling and the dark matter density
    Dandoy, Virgile
    Jaeckel, Joerg
    Montoya, Valentina
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2024, (05):
  • [19] Relaxation times for Bose-Einstein condensation in axion miniclusters
    Kirkpatrick, Kay
    Mirasola, Anthony E.
    Prescod-Weinstein, Chanda
    PHYSICAL REVIEW D, 2020, 102 (10)
  • [20] Did JWST observe imprints of axion miniclusters or primordial black holes?
    Huetsi, Gert
    Raidal, Martti
    Urrutia, Juan
    Vaskonen, Ville
    Veermaee, Hardi
    PHYSICAL REVIEW D, 2023, 107 (04)