Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Zhi-chao Zhao"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p L012060 (2024)
Multiple pulsar-timing-array collaborations have reported strong evidence for the existence of a gravitational-wave background. We study physical implications of this signal for cosmology, assuming that it is attributed to scalar-induced gravitationa
Externí odkaz:
https://doaj.org/article/ceda391521134e58ad996a24bbdfbdf9
Publikováno v:
Physics Letters B, Vol 847, Iss , Pp 138313- (2023)
It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic neutrino background (CνB), and gravitational wave background is inve
Externí odkaz:
https://doaj.org/article/4bf7976f251f431f96c8526f2618a0f2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 1, Pp 1-4 (2023)
Abstract It is reported that the Large High Altitude Air Shower Observatory (LHAASO) observed thousands of very-high-energy photons up to $$\sim $$ ∼ 18 TeV from GRB 221009A. We study the survival rate of these photons via considering the fact that
Externí odkaz:
https://doaj.org/article/e63e0e6529d44c7e9d86b7d864fff986
Publikováno v:
水下无人系统学报, Vol 30, Iss 5, Pp 586-596 (2022)
To improve the ascent response speed of unpowered deep-sea vehicles, and meet the requirements of mission loads for its water-exit attitude, considering the effect of ocean currents and buoyancy changes, a space motion simulation model of the vehicle
Externí odkaz:
https://doaj.org/article/b3b041c413234830b402c37ef11aae35
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013207 (2024)
Recently, strong evidence for a gravitational-wave background has been reported by collaborations of pulsar timing arrays (PTAs). In the framework of scalar-induced gravitational waves, we concurrently investigate the second- and third-order gravitat
Externí odkaz:
https://doaj.org/article/12a84d7cd7284e469f9315cd00bd3b6f
Autor:
Sai Wang, Zhi-Chao Zhao
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-4 (2022)
Abstract Two gravitational wave events, i.e. GW200105 and GW200115, were observed by the Advanced LIGO and Virgo detectors recently. In this work, we show that they can be explained by a scenario of primordial black hole binaries that are formed in t
Externí odkaz:
https://doaj.org/article/8fb83f7db52144168e7313c8c5ea6796
Autor:
Zhi-Chao Zhao, Sai Wang
Publikováno v:
Universe, Vol 9, Iss 4, p 157 (2023)
Assuming that the common-spectrum process in the NANOGrav 12.5-year dataset has an origin of scalar-induced gravitational waves, we study the enhancement of primordial curvature perturbations and the mass function of primordial black holes, by perfor
Externí odkaz:
https://doaj.org/article/8fef4492e53c42ea964cd93ef941f2b2
Autor:
Sai Wang, Zhi-Chao Zhao
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-6 (2020)
Abstract A discovery of gravitational waves from binary black holes raises a possibility that measurements of them can provide strict tests of CPT invariance in gravitational waves. When CPT violation exists, if any, gravitational waves with differen
Externí odkaz:
https://doaj.org/article/b119aa61c08847eaa1d08f00f2f0be7e
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 2, Pp 1-13 (2019)
Abstract The multi-messenger observations of GW170817 indicated a new independent measurement of the Hubble constant ($$H_0$$ H0 ). We obtain the low-redshift cosmological constraints on $$H_0$$ H0 by combining this gravitational wave measurement wit
Externí odkaz:
https://doaj.org/article/0d78b9c426514e69b2ee8d8e1a093c9a
Autor:
Li-Peng Ma, Zhi-Chao Zhao, Tao Li, Da-Quan Li, Xiao-Yan Wang, Cheng-Yi Song, Ya-Yin Qi, Tao Huang
Publikováno v:
Revista Brasileira de Zootecnia, Vol 48 (2019)
ABSTRACT This study aimed to investigate the roles of miRNA in the development of ovarian follicles in sows with high ovulation rate. The miRNA expression profiles in middle-size ovarian follicles between Meishan and Duroc sows were characterized by
Externí odkaz:
https://doaj.org/article/e735770ef4054024a39c22e40e88110c