QUASARS

作品数:202被引量:64H指数:4
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相关领域:天文地球更多>>
相关作者:王飞格陈世浩江林华王俊贤高煜更多>>
相关机构:北京大学中国科学技术大学北京师范大学东北师范大学更多>>
相关期刊:《Journal of Modern Physics》《Science China(Physics,Mechanics & Astronomy)》《Science China Chemistry》《Science China Mathematics》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广东省自然科学基金王宽诚敎育基金更多>>
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Measuring the Time Variation of the Fine-structure Constant with Quasars Detected by LAMOST
《Research in Astronomy and Astrophysics》2024年第12期229-235,共7页Jin-Nan Wei Rui-jie Chen Jun-Jie Wei Martín López-Corredoira Xue-Feng Wu 
supported by the National Natural Science Foundation of China(grant Nos.12422307,12373053,and 12321003);the Key Research Program of Frontier Sciences(grant No.ZDBS-LY-7014);Chinese Academy of Sciences,and the Natural Science Foundation of Jiangsu Province(grant No.BK20221562);supported by the Chinese Academy of Sciences President's International Fellowship Initiative(grant No.2023VMB0001)。
The[O iii]λλ4960,5008 emission lines in the optical spectra of galaxies and quasars have been widely used to investigate the possible variation of the fine-structure constantαover cosmic time.In this work,we utiliz...
关键词:atomic data-(galaxies) QUASARS emission lines-surveys-cosmology observations 
Observations of Fast Radio Variations in Microquasars by FAST
《Chinese Physics Letters》2024年第11期233-240,共8页Wei Wang 
supported by the National Natural Science Foundation of China(Grant No.12133007);the National Key Research and Development Program of China(Grant Nos.2021YFA0718503 and 2023YFA1607901);the Cultivation Project for FAST Scientific Payoff and Research Achievement of CAMS-CAS。
Microquasars are the compact objects generally including accreting black holes which produce relativistic jets.The physical mechanisms of jet launching,collimation,and acceleration are poorly understood.Microquasars s...
关键词:QUASARS FAST BLACK 
Fermi Blazars in the Zwicky Transient Facility Survey:Properties of Large Optical Variations
《Research in Astronomy and Astrophysics》2024年第10期104-115,共12页Si-Si Sun Zhong-Xiang Wang Shun-Hao Ji 
supported by the National Science Foundation under Grant No.AST-2034437 and a collaboration including Caltech,IPAC;supported by the Basic Research Program of Yunnan Province(No.202201AS070005);the National Natural Science Foundation of China(NSFC,grant No.12273033);the Original Innovation Program of the Chinese Academy of Sciences(E085021002);the support of the science research program for graduate students of Yunnan University(KC-23234629)。
We analyze the optical light curve data,obtained with the Zwicky Transient Facility(ZTF)survey,for 47 γ-ray blazars monitored by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope(Fermi).These 47sou...
关键词:(galaxies:)BL Lacertae objects:general (galaxies:)quasars:general gamma-rays:galaxies 
Supermassive Primordial Black Holes for Nano-Hertz Gravitational Waves and High-redshift JWST Galaxies
《Research in Astronomy and Astrophysics》2024年第9期1-6,共6页Hai-Long Huang Yong Cai Jun-Qian Jiang Jun Zhang Yun-Song Piao 
supported by the National Natural Science Foundation of China(NSFC,grant No.12075246);the Fundamental Research Funds for the Central Universities;the Fundamental Research Funds for the Central Universities(grant No.E2EG6602X2 and grant No.E2ET0209X2);supported in part by the Natural Science Foundation of Henan Province and Zhengzhou University(grant Nos.242300420231,JC23149007,35220136);the China Postdoctoral Science Foundation(grant No.2021M692942);the NSFC(grant No.11905224);the NSFC(grant No,12147103);supported by the scientific research starting grants from University of Chinese Academy of Sciences(grant No.118900M061)。
Recently,observational hints for supermassive black holes have been accumulating,prompting the question:Can primordial black holes(PBHs)be supermassive,particularly with masses M■10^(9)M_(⊙)?A supercritical bubble,c...
关键词:(cosmology:)early universe (cosmology:)inflation (galaxies:)quasars:supermassive black holes 
Co-variability Between the Broad Absorption Lines and Narrow Absorption Lines
《Research in Astronomy and Astrophysics》2024年第9期99-105,共7页Bo-Lin Qin Jing Li Wei-Jian Lu 
supported by the Guangxi Natural Science Foundation(No.2021GXNSFBA220044);the National Natural Science Foundation of China(No.11903002);the Research Project of Baise University(No.2019KN04)。
We investigate the relationship between the variability of broad absorption lines(BALs)or narrow absorption lines(NALs)and that of continuum using a data set of two-epoch SDSS spectra containing 134 C IV NAL-BAL pairs...
关键词:(galaxies:)quasars:absorption lines (galaxies:)quasars:general galaxies:active 
Quantized Redshift and its Significance for Recent Observation
《Research in Astronomy and Astrophysics》2024年第9期156-166,共11页Arindam Mal Sarbani Palit Christopher C.Fulton Sisir Roy 
With the recent observational evidence in extragalactic astronomy,the interpretation of the nature of quasar redshift continues to be a research interest.Very high redshifts are being detected for extragalactic object...
关键词:galaxies:distances and redshifts (galaxies:)quasars:absorption lines cosmology:observations 
Identifying Three New AGNs among Fermi Unidentified Gigaelectronvolt Sources
《Research in Astronomy and Astrophysics》2024年第7期257-267,共11页Shun-Hao Ji Zhong-Xiang Wang Qiang-Meng Huang Ruo-Heng Yang 
supported by the Basic Research Program of Yunnan Province(No.202201AS070005);the National Natural Science Foundation of China(NSFC,grant No.12273033);the Original Innovation Program of the Chinese Academy of Sciences(E085021002);support of the science research program for graduate students of Yunnan University(KC-23234629)。
We report our identification of three gigaelectronvoltγ-ray sources,4FGL J0502.6+0036,4FGL J1055.9+6507,and 4FGL J1708.2+5519,as Active Galactic Nuclei(AGNs).They are listed in the latest Fermi-Large Area Telescope s...
关键词:GAMMA-RAYS galaxies-(galaxies)BL Lacertae objects general-(galaxies)quasars GENERAL 
Probing the Gamma-Ray Emission Region of Five TeV Flat Spectrum Radio Quasars
《Research in Astronomy and Astrophysics》2024年第6期156-169,共14页Hu-Bing Xiao Hai-Tao Cao Rui Xue Jin-Ting Cai Ge-Ge Wang Marina Manganaro Shao-Hua Zhang Zhi-Hao Ouyang Li-Ping Fu Jun-Hui Fan 
support from the National Natural Science Foundation of China(NSFC,Grant No.12203034);from the Shanghai Science and Technology Fund under grant No.22YF1431500;from the science research grants from the China Manned Space Project;support from the National Natural Science Foundation of China(NSFC,grant No.12203043);support from the National Natural Science Foundation of China(NSFC,grant No.11933002);support from the National Natural Science Foundation of China(NSFC,grant No.12173026);the National Key Research and Development Program of China(grant No.2022YFC2807303);the Shanghai Science and Technology Fund(grant No.23010503900);the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning;the Shuguang Program(23SG39)of the Shanghai Education Development Foundation and Shanghai Municipal Education Commission;support from the National Natural Science Foundation of China(NSFC,grant No.U2031201,and 11733001);the Scientific and Technological Cooperation Projects(20202023)between the People’s Republic of China and the Republic of Bulgaria;the science research grants from the China Manned Space Project with No.CMS-CSST-2021A06;partially supported by the Bulgarian National Science Fund of the Ministry of Education and Science under grants KP-06-H38/4(2019),KP-06-KITAJ/2(2020),and KP-06-H68/4(2022)。
The location ofγ-ray emission of blazars remains a contested topic,inspiring the development of numerous investigative techniques to address this issue.In this work,we analyzed Fermiγ-ray light curves in the GeV and...
关键词:galaxies:active gamma-rays:galaxies galaxies:jets 
The Origin, Properties and Detection of Dark Matter and Dark Energy
《Journal of High Energy Physics, Gravitation and Cosmology》2024年第2期749-774,共26页Sylwester Kornowski 
The pictures from the James Webb Space Telescope (JWST) suggest that massive galaxies were already at the beginning of the expansion of the Universe because there was too short time to create them. It is consistent wi...
关键词:New Cosmology Dark Matter DM-BM Weak Interactions DMH Mass around Quasars Rotation Curves of Galaxies MAGNETARS CMB AGN-Jet Production Galactic-Halo Production Dark Energy 
Relations between the Fractional Variation of the Ionizing Continuum and CⅣBroad Absorption Lines with Different Ionization Levels
《Research in Astronomy and Astrophysics》2024年第2期185-189,共5页Ying-Ru Lin Cai-Juan Pan Wei-Jian Lu 
supported by the Guangxi Natural Science Foundation(No.2021GXNSFBA220044);the National Natural Science Foundation of China(No.11903002);the Research Project of Baise University(No.2019KN04)。
This paper explores the correlation between the fractional variation of the ionizing continuum and CⅣbroad absorption lines(BALs)with different ionization levels.Our results reveal anti-correlations between fractiona...
关键词:(galaxies:)quasars absorption lines-(galaxies:)quasars general-galaxies active 
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