Results 21 to 30 of about 4,993,835 (349)
Spectroscopic source redshifts and parameter constraints from weak lensing and the cosmic microwave background [PDF]
, 2005 Weak lensing is a potentially robust and model-independent cosmological probe, but its accuracy is dependent on knowledge of the redshift distribution of the source galaxies used.
Hirata, Christopher M., Ishak, Mustapha
core +1 more source
Micro-seismic response characteristics of rock mass deterioration induced by mining in fault zone
Meikuang Anquan, 2022 Taking the complex fault zone of group A coal mining in 12123 working face of Pan’er Mine in Huainan Mining area as the research object, a micro-seismic monitoring system was established to obtain the micro-seismic activity data in the structural ...
ZHU Guiwang +7 more
doaj +1 more source
A Statistical Approach Towards Fast Estimates of Moderate-To-Large Earthquake Focal Mechanisms
Frontiers in Earth Science, 2022 Emerging high-performance computing systems, combined with increasingly detailed 3-D Earth models and physically consistent numerical wave propagation solvers, are opening up new opportunities for urgent seismic computing. This may help, for instance, to
Marisol Monterrubio-Velasco +6 more
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Gyroscope precession in cylindrically symmetric spacetimes [PDF]
, 2000 We present calculations of gyroscope precession in spacetimes described by Levi-Civita and Lewis metrics, under different circumstances. By doing so we are able to establish a link between the parameters of the metrics and observable quantities ...
Banerjee A +23 more
core +2 more sources
Estimation of parameters of gravitational waves from coalescing binaries [PDF]
, 1995 In this paper we deal with the measurement of the parameters of the gravitational wave signal emitted by a coalescing binary signal. We present the results of Monte Carlo simulations carried out for the case of the initial LIGO, incorporating the first
A Abramovici +14 more
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Frontiers in Earth Science, 2023 Second-degree seismic moments provide a simple description of the spatiotemporal extent of the earthquake source. Finite source attributes such as rupture length, width, duration, velocity, and propagation direction can be estimated by computing second ...
Arianna Cuius +3 more
doaj +1 more source
Source parameters of the MS4.0 Lingwu earthquake on November 18th, 2021
地球与行星物理论评, 2022 An MS4.0 earthquake occurred in Lingwu, Yinchuan City, Ningxia Hui Autonomous Region at 20:42:54 BJT on November 18th, 2021. It was felt by almost all people in Lingwu and its surrounding area and attracted considerable concern in the society.
Yingcai Xu, Xianwei Zeng
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地震科学进展, 2022 In this paper, the regional full waveform inversion of the broadband waveforms from China Seismic Network were conducted, and the focal mechanism solutions of the 18 earthquakes with M≥4.0 in the mainland of China from July 1 to September 30, 2022 were ...
Shanshan Liang +4 more
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地震科学进展, 2023 In this paper，the regional full waveform inversion using the broadband waveforms recorded by China Seismic Network were conducted, and the focal mechanism solutions of the 26 earthquakes with M≥4.0 occurred in the mainland of China during August to ...
Shanshan Liang +3 more
doaj +1 more source
Image distortion in non perturbative gravitational lensing [PDF]
, 2000 We introduce the idea of {\it shape parameters} to describe the shape of the pencil of rays connecting an observer with a source lying on his past lightcone.
A. O. Petters +20 more
core +2 more sources