Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Han, Ming Zhe"'
Publikováno v:
2024, ApJ, 974, 244
Very recently, it has been shown that there is an upper bound on the squared sound speed of nuclear matter from the transport, which reads $c_{\rm s}^2 \leq 0.781$. In this work, we demonstrate that this upper bound is corroborated by the reconstruct
Externí odkaz:
http://arxiv.org/abs/2404.09563
Autor:
Luo, Chuan-Ning, Tang, Shao-Peng, Han, Ming-Zhe, Jiang, Jin-Liang, Gao, Wei-Hong, Wei, Da-Ming
In 2019, Neutron star Interior Composition ExploreR (NICER) mission released its findings on the mass and radius of the isolated neutron star (INS) PSR J0030+0451, revealing a mass of approximately 1.4 solar masses ($M_{\odot}$) and a radius near 13
Externí odkaz:
http://arxiv.org/abs/2403.14105
Publikováno v:
Phys. Rev. D 109, 083037 (2024)
Recently, an association of GW190425 and FRB 20190425A had been claimed and a highly magnetized neutron star (NS) remnant was speculated. Given the $\sim 2.5$-h delay of the occurrence of FRB 20190425A, a uniformly rotating supramassive magnetar is f
Externí odkaz:
http://arxiv.org/abs/2311.13805
Publikováno v:
Phys. Rev. D 109, 043052 (2024)
The maximal gravitational mass of nonrotating neutron stars ($M_{\rm TOV}$) is one of the key parameters of compact objects and only loose bounds can be set based on the first principle. With reliable measurements of the masses and/or radii of the ne
Externí odkaz:
http://arxiv.org/abs/2309.12644
Publikováno v:
Science Bulletin, Volume 68, Issue 9, 15 May 2023, Pages 913-919
We investigate the neutron star (NS) equation of state (EOS) by incorporating multi-messenger data of GW170817, PSR J0030+0451, PSR J0740+6620, and state-of-the-art theoretical progresses, including the information from chiral effective field theory
Externí odkaz:
http://arxiv.org/abs/2207.13613
Publikováno v:
The Astrophysical Journal, Volume 950, Number 2, 77 (2023)
We introduce a new nonparametric representation of the neutron star (NS) equation of state (EoS) by using the variational autoencoder (VAE). As a deep neural network, the VAE is frequently used for dimensionality reduction since it can compress input
Externí odkaz:
http://arxiv.org/abs/2205.03855
Publikováno v:
Phys. Rev. D 104, 063032 (2021)
Recently, the radius of neutron star (NS) PSR J0740+6620 was measured by Neutron Star Interior Composition Explorer (NICER) and an updated measurement of neutron skin thickness of ${}^{208}$Pb ($R_{\rm skin}^{208}$) was reported by the PREX-II experi
Externí odkaz:
http://arxiv.org/abs/2106.04204
Publikováno v:
Phys. Rev. D 104, 024015 (2021)
Gravitational-wave (GW) data can be used to test general relativity in the highly nonlinear and strong field regime. Modified gravity theories such as Einstein-dilation-Gauss-Bonnet and dynamical Chern-Simons can be tested with the additional GW sign
Externí odkaz:
http://arxiv.org/abs/2104.07590
Autor:
Li, Yin-Jie, Wang, Yuan-Zhu, Han, Ming-Zhe, Tang, Shao-Peng, Yuan, Qiang, Fan, Yi-Zhong, Wei, Da-Ming
We develop a new method based on Gaussian process to reconstruct the mass distribution of binary black holes (BBHs). Instead of prespecifying the formalisms of mass distribution, we introduce a more flexible and nonparametric model with which the dis
Externí odkaz:
http://arxiv.org/abs/2104.02969
Autor:
Wang, Yuan-Zhu, Tang, Shao-Peng, Liang, Yun-Feng, Han, Ming-Zhe, Li, Xiang, Jin, Zhi-Ping, Fan, Yi-Zhong, Wei, Da-Ming
We analyze the LIGO/Virgo GWTC-2 catalog to study the primary mass distribution of the merging black holes. We perform hierarchical Bayesian analysis, and examine whether the mass distribution has a sharp cutoff for primary black hole masses below $6
Externí odkaz:
http://arxiv.org/abs/2104.02566