ASTROPHYSICS

作品数:160被引量:116H指数:6
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相关领域:天文地球理学更多>>
相关作者:谢冰蓉温亚媛赵景芝李向华汪景琇更多>>
相关机构:国家天文台中国科学院国家天文台北京大学北京航空航天大学更多>>
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相关基金:国家自然科学基金国家重点基础研究发展计划中国博士后科学基金北京市自然科学基金更多>>
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Application of deep learning methods to high-energy astrophysics
《Astronomical Techniques and Instruments》2025年第1期44-51,共8页Ziwei Ou 
supported by the Natural Science Foundation of China(12393853)。
High-energy gamma-ray astronomy,at frequencies of 100 MeV to 100 GeV,yields insights into the fields of compact objects,extreme processes,and particle propagation.Thousands of gamma-ray sources have been detected by t...
关键词:Gamma-ray astronomy Pulsar Active galactic nucleus Deep learning 
Axion Gamma-Ray Signatures from Quark Matter in Neutron Stars and Gravitational Wave Comparisons
《Journal of Modern Physics》2025年第1期152-166,共15页Bijan Berenji 
We present a theoretical model for detecting axions from neutron stars in a QCD phase of quark matter. The axions would be produced from a quark-antiquark pair uu¯or dd¯, in loop(s) involving gluons. The chiral anom...
关键词:ASTROPHYSICS PHENOMENOLOGY QCD Axion Neutron Stars Nuclear Theory Gamma Rays Gravitational Waves Fermi-LAT 
Research in Astronomy and Astrophysics Vol.24 2024 CONTENTS
《Research in Astronomy and Astrophysics》2024年第12期I0001-I0010,共10页
Preliminary investigations of a potential optics system for wideband X-ray telescopes
《Astronomical Techniques and Instruments》2024年第6期335-344,共10页Liqiang Qi Tianxiang Chen Zhengwei Li Qianqing Yin Congzhan Liu Weichun Jiang Lin Li 
the China National Space Administration program(D050102);Youth Innovation Promotion Association CAS(2021011).
We present preliminary investigations of a potential optics system for wideband X-ray telescopes.The optical design adopts the conical approximation of the Wolter-I configuration and a combination of multilayer coatin...
关键词:Depth-graded multilayer Silicon pore optics Wideband X-ray telescope High-energy astrophysics 
Transport in Astrophysics: VII. Solar Modulation of the Cosmic Rays
《International Journal of Astronomy and Astrophysics》2024年第4期245-258,共14页Lorenzo Zaninetti 
Two existing solutions for the diffusion of cosmic rays (CRs) are analyzed. The first one is a well-known solution in 3D over an infinite spatial domain and the second one is a 1D solution with an exponential decay in...
关键词:Cosmic Rays Particle Diffusion Random Walks 
New Approaches of Theoretical Astrophysics for Application to Some Astronomical Objects: I. An Application of Non-Classical Equation Mathematical Physics to the Magneto-Hydrodynamic Equilibrium (in Case of Mixed Magnetic Field) of Magnetic Stars
《Open Journal of Applied Sciences》2024年第11期3165-3182,共18页Mahammad A. Nurmammadov 
In this paper, we consider the application of the equation of non-classical mathematical physics to magneto-hydrodynamic equilibrium (in the case of a mixed magnetic field) for magnetic stars. First, we give the neces...
关键词:Magnetic Star MHD Equilibrium Keldysh and Tricomi Type Plasma Non-Classical Equations of Mathematical Physics 
The Dark Nature of Gravity and the Universe Expansion
《Journal of Applied Mathematics and Physics》2024年第11期3758-3764,共7页Gianni Donati 
Staying on Earth, we do not perceive the 8 km/s velocity of its surface rotation, neither the 20 km/s revolution velocity around the Sun, nor the 200 km/s around the center of the Milky Way, which is apparently fixed ...
关键词:Physics GRAVITY ASTROPHYSICS Grand Unified Theory NEUTRINO Particle Physics 
New Probability Distributions in Astrophysics: XIII. Truncation for the Benini Distribution
《International Journal of Astronomy and Astrophysics》2024年第3期203-219,共17页Lorenzo Zaninetti 
In order to introduce a right truncated version of the Benini distribution, we derive its probability density function, its distribution function, its average value, its kth moment about the origin, its median, how to...
关键词:Stars: Normal Stars: Luminosity Function Mass Function Stars: Statistics 
Astrobiological Constraints on Astrophysics
《Journal of Modern Physics》2024年第11期1959-1979,共21页Charles H. McGruder III Dirk Schulze-Makuch 
Life exists in the universe and therefore the astrophysical properties of the universe must be such that they allow the origin of life. We connect astrobiology and astrophysics via one astrobiological quantity—the pr...
关键词:ASTROBIOLOGY ASTROPHYSICS COSMOLOGY RELATIVITY 
Constraints on Axions from a Relativistic Model of Spatially Extended Gamma-Ray Emission from Neutron Stars
《Journal of Modern Physics》2024年第11期1980-1997,共18页Bijan Berenji 
Axions are hypothetical particles proposed to solve the strong CP problem in QCD and may constitute a significant fraction of the dark matter in the universe. Axions are expected to be produced in superfluid neutron s...
关键词:AXIONS Particle Astrophysics Dark Matter 
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