LENSING

作品数：43被引量：15H指数：3
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相关作者：陈大明张乐更多>>
相关机构：北京大学华东师范大学国家天文台北京师范大学更多>>
相关期刊：《Science Bulletin》《Chinese Physics C》《Communications in Theoretical Physics》《Chinese Physics Letters》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划高等学校学科创新引智计划中国博士后科学基金更多>>
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Shadow and gravitational weak lensing around a quantum-corrected black hole surrounded by plasma
《Chinese Physics C》2025年第4期230-240,共11页Mirzabek Alloqulov Yokubjon Isaqjonov Sanjar Shaymatov Abdul Jawad 
Supported by the National Natural Science Foundation of China(11675143);the National Key Research and Development Program of China(2020YFC2201503)。
In this study,we investigate the optical properties of a quantum-corrected black hole(BH)in loop quantum gravity surrounded by a plasma medium.First,we determine the photon and shadow radii resulting from quantum corr...
关键词：quantum-corrected black hole gravitational weak lensing photon motion SHADOW 
Shadow and gravitational weak lensing for quantum improved charged black hole in plasma
《Chinese Physics C》2024年第11期280-291,共12页Mirzabek Alloqulov Farruh Atamurotov Ahmadjon Abdujabbarov Bobomurat Ahmedov Nozima Juraeva 
Supported partly by Grants F-FA-2021-432,F-FA-2021-510,and MRB-2021-527 of the Ministry of Higher Education,Science and Innovations of the Republic of Uzbekistan。
We investigated the shadow and weak gravitational lensing for the quantum-improved charged black hole(BH).First,the photon motion and BH shadow were studied in a plasma medium.It can be seen from our analysis that the...
关键词：gravitational weak lensing BH shadow plasma medium 
Shadows and weak gravitational lensing for black holes within Einstein-Maxwell-scalar theory被引量：1
《Chinese Physics C》2024年第9期234-243,共10页Ahmad Al-Badawi Mirzabek Alloqulov Sanjar Shaymatov Bobomurat Ahmedov 
Supported by the National Natural Science Foundation of China(11675143);the National Key Research and Development Program of China(2020YFC2201503);the support from Research Grant F-FA-2021-432 of the Ministry of Higher Education,Science and Innovations of the Republic of Uzbekistan。
In this study,we investigated the optical properties of charged black holes within the Einstein-Maxwellscalar(EMS)theory.We evaluated the shadow cast by these black holes and obtained analytical solutions for both the...
关键词：Einstein Maxwell gravity shadow gravitational weak lensing 
Shadow and weak gravitational lensing for Ellis-Bronnikov wormhole被引量：1
《Chinese Physics C》2024年第2期183-194,共12页Mirzabek Alloqulov Farruh Atamurotov Ahmadjon Abdujabbarov Bobomurat Ahmedov Vokhid Khamidov 
partly Supported by Grants F-FA-2021-432,F-FA-2021-510,and MRB-2021-527 of the Ministry of Higher Education,Science and Innovations of the Republic of Uzbekistan。
In this study,we investigated the gravitational weak lensing and shadow of the Ellis-Bronnikov wormhole.First,we studied the photon motion in a plasma medium and a wormhole shadow.It was shown that the radius of the p...
关键词：LENSING wormhole shadow Ellis-Bronnikov wormhole 
Shadows and gravitational weak lensing by the Schwarzschild black hole in the string cloud background with quintessential field被引量：4
《Chinese Physics C》2022年第12期321-332,共12页G.Mustafa Farruh Atamurotov Ibrar Hussain Sanjar Shaymatov Ali Övgün 
the Grant No.ZC304022919 to support his Postdoctoral Fellowship at Zhejiang Normal University;the support of Inha University in Tashkent and research work has been supported by the Visitor Research Fellowship at Zhejiang Normal University;supported by Research Grant FZ-20200929344,F-FA-2021-510 and F-FA-2021-432 of the Uzbekistan Ministry for Innovative Development。
In this study,we observe that,in the presence of the string cloud parameter a and the quintessence parameterγ,with the equation of state parameter,ω_(q) = -2/3the radius of the shadow of the Schwarzschild black hole...
关键词：shadow gravitational Lensing string cloud QUINTESSENCE Schwarzschild black hole 
Influence of quantum correction on black hole shadows, photon rings, and lensing rings被引量：2
《Chinese Physics C》2021年第8期206-212,共7页Jun Peng Minyong Guo Xing-Hui Feng 
J.P.is supported by the China Scholarship Council.M.G.is supported by National Natural Science Foundation of China(NSFC)(11947210);funded by China Postdoctoral Science Foundation(2019M660278);X.H.F.is supported by NSFC(11905157,11935009)。
We calculate photon sphere r_(ph) and critical curve b_(c) for a quantum corrected Schwarzschild black hole,finding that they violate universal inequalities proved for asymptotically flat black holes that satisfy the ...
关键词：black hole shadow photon ring quantum correction 
Matter effects and coherent effect of neutrinos produced from γ-ray bursts
《Chinese Physics C》2019年第10期99-104,共6页Kuan Liu Chun-Sheng An Xin Li Hai-Nan Lin 
Supported in part by the Natural Science Foundation of China(11675131,11775038,11603005,11847301);the Fundamental Research Funds for the Central Universities(2019CDJDWL0005)
Neutrinos produced from γ-ray bursts (GRBs) carry significant physical information. The electron density in the GRBs outflow is very large. In this study, we calculate the matter effect on neutrinos when they propaga...
关键词：NEUTRINO oscillations Γ-RAY BURSTS GRAVITATIONAL LENSING 
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