Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Di, Haoran"'
The Hubble constant, $H_0$, is a crucial parameter in cosmology. However, various cosmic observations have produced differing posterior values for $H_0$, resulting in what is referred to as the $H_0$ tension. To resolve this discrepancy, utilizing ot
Externí odkaz:
http://arxiv.org/abs/2409.05120
The anomalous orbits of trans-Neptunian objects can be accounted for by the planet 9 hypothesis. One intriguing possibility is that planet 9 could be a dilute axion star captured by the solar system, with the ratio of the axion star to dark matter be
Externí odkaz:
http://arxiv.org/abs/2407.08436
Autor:
Di, Haoran
Publikováno v:
Eur. Phys. J. C 84, 283 (2024)
The radiation mechanism of fast radio bursts (FRBs) has been extensively studied but still remains elusive. In the search for dark matter candidates, the QCD axion and axionlike particles (ALPs) have emerged as prominent possibilities. These elusive
Externí odkaz:
http://arxiv.org/abs/2311.06860
Autor:
Di, Haoran, Shi, Haihao
The anomalous orbits of Trans-Neptunian Objects (TNOs) can be explained by the Planet 9 hypothesis. We propose that the Planet 9 can be an axion star. Axion stars are gravitational bound clusters condensed by QCD axions or axion-like particles (ALPs)
Externí odkaz:
http://arxiv.org/abs/2308.07263
Autor:
Di, Haoran1 (AUTHOR) hrdi@ecut.edu.cn
Publikováno v:
European Physical Journal C -- Particles & Fields. Mar2024, Vol. 84 Issue 3, p1-7. 7p.
Publikováno v:
Physics of the Dark Universe 26 (2019) 100407
Observations by the Wilkinson Microwave Anisotropy Probe and the Planck mission suggest a hemispherical power amplitude asymmetry in the cosmic microwave background, with a correlation length on the order of the size of the observable Universe. We fi
Externí odkaz:
http://arxiv.org/abs/1712.09917
Autor:
Di, Haoran, Gong, Yungui
Publikováno v:
JCAP07(2018)007
The next generation of space-borne gravitational wave detectors may detect gravitational waves from extreme mass-ratio inspirals with primordial black holes. To produce primordial black holes which contribute a non-negligible abundance of dark matter
Externí odkaz:
http://arxiv.org/abs/1707.09578
Publikováno v:
Phys. Rev. D 96, 083516 (2017)
Observations indicate that large-scale anomalies exist in the fluctuations of the cosmic microwave background. In these anomalies, the hemispherical power amplitude asymmetry has a correlation length comparable to that of the observable universe. We
Externí odkaz:
http://arxiv.org/abs/1612.03708
Autor:
Yang, Qiaoli, Di, Haoran
Publikováno v:
Phys. Rev. D 95, 075032 (2017)
We explore a scenario that the dark matter is a boson condensate created by the misalignment mechanism, in which a spin 0 boson (an axion-like particle) and a spin 1 boson (the dark photon) are considered, respectively. We find that although the sub-
Externí odkaz:
http://arxiv.org/abs/1610.08378
Autor:
Yang, Qiaoli, Di, Haoran
Publikováno v:
Phys. Lett. B 780 (2018) 622
The hidden sector U(1) vector bosons created from inflationary fluctuations can be a substantial fraction of dark matter if their mass is around $10^{-5}$eV. The creation mechanism makes the vector bosons' energy spectral density $\rho_{cdm}/\Delta E
Externí odkaz:
http://arxiv.org/abs/1606.01492