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pro vyhledávání: '"Gao Zhi-Fu"'
In this paper, we investigate Holst gravity by examining two distinct examples. The first example involves minimal coupling to torsion, while the second explores non-minimal coupling. The motivation for the first example stems from the recent work by
Externí odkaz:
http://arxiv.org/abs/2412.16617
In the Standard Model\,(SM) of particle physics, photon-torsion mixing is extended to include the Einstein-Cartan portal to dark-photon-axion-torsion mixing beyond the Standard Model\,(BSM), mediated by torsion. The Barbero-Immirzi(BI) parameter, of
Externí odkaz:
http://arxiv.org/abs/2412.05982
Autor:
Li, Biao-Peng, Gao, Zhi-Fu
Publikováno v:
2023, Astron. Nachr., e20220111
The inclination angle $\chi$ between magnetic and rotation axes of pulsars is an important parameter in pulsar physics. The changes in the inclination angle of a pulsar would lead to observable effects, such as changes in the pulse beam width and bra
Externí odkaz:
http://arxiv.org/abs/2404.13857
Publikováno v:
Astron.Nachr., e20230167 (2023)
The pulsar magnetic inclination angle is a key parameter for pulsar physics. It influences the observable properties of pulsars, such as the pulse beam width, braking index, polarisation, and emission geometry. In this study, we give a brief overview
Externí odkaz:
http://arxiv.org/abs/2404.13700
Publikováno v:
Res. Astron. Astrophys, Volume 24, Number 2, 025006, 2024
The prompt emission mechanism of gamma-ray bursts (GRBs) is still unclear, and the time-resolved spectral analysis of GRBs is a powerful tool for studying their underlying physical processes. We performed a detailed time-resolved spectral analysis of
Externí odkaz:
http://arxiv.org/abs/2401.14969
PSR J1012+5307 is a millisecond pulsar with an extremely low-mass (ELM) white dwarf (WD) companion in an orbit of 14.5 hours. Magnetic braking (MB) plays an important role in influencing the orbital evolution of binary systems with a low-mass ($\lt 1
Externí odkaz:
http://arxiv.org/abs/2401.01488
Magnetic braking (MB) likely plays a vital role in the evolution of low-mass X-ray binaries (LMXBs). However, it is still uncertain about the physics of MB, and there are various proposed scenarios for MB in the literature. To examine and discriminat
Externí odkaz:
http://arxiv.org/abs/2101.12427
Publikováno v:
Invitaion talk in IWARA2020 video conference
Magnetars are a kind of pulsars powered mainly by superhigh magnetic fields. They are popular sources with many unsolved issues in themselves, but also linked to various high energy phenomena, such as QPOs, giant flares, fast radio bursts and super-l
Externí odkaz:
http://arxiv.org/abs/2012.01048
Publikováno v:
Eurpea Physical Journal C, 2020,vol 80, page 582 (12.pp)
There are many stars that are rotating spheroids in the Universe, and studying them is of very important significance. Since the times of Newton, many astronomers and physicists have researched gravitational properties of stars by considering the mom
Externí odkaz:
http://arxiv.org/abs/2007.02685
PSR J1640+2224 is a binary millisecond pulsar (BMSP) with a white dwarf (WD) companion. Recent observations indicate that the WD is very likely to be a $\sim 0.7\,M_{\odot}$ CO WD. Thus the BMSP should have evolved from an intermediate-mass X-ray bin
Externí odkaz:
http://arxiv.org/abs/2002.12583