云南高校图书馆联盟文献共享服务平台- SEYFERT

SEYFERT: 作品数：82被引量：27H指数：3; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：张雄黄介浩顾秋生程福臻郑永刚更多>>; 相关机构：中国科学技术大学云南师范大学南京大学中国科学院大学更多>>; 相关期刊：《Science Bulletin》《物理学报》《云南师范大学学报（自然科学版）》《Science China(Physics,Mechanics & Astronomy)》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西壮族自治区自然科学基金云南省自然科学基金更多>>

A Possible X-ray Quasi-periodic Oscillation in the Narrow-line Seyfert 1 Galaxy Mrk 142: 《Research in Astronomy and Astrophysics》2024年第6期191-200,共10页Xiao-Gu Zhong Jian-Cheng Wang Yong-Yun Chen Xiao-Ling Yu; financial supports from the Science Foundation of Department of Education of Yunnan Province (2024J0935)。; A possible quasi-periodic oscillation(QPO) at frequency 7.045 × 10^(-5) Hz is found in the narrow-line Seyfert 1galaxy Mrk 142 in the data of XMM-Newton collected on 2020 April 11.We find that the QPO signal is stati...; 关键词：X-rays:galaxies galaxies:Seyfert ACCRETION accretion disks radiation mechanisms:general

Long Term X-Ray Spectral Variations of the Seyfert-1 Galaxy Mrk 279: 《Research in Astronomy and Astrophysics》2024年第6期307-314,共8页K.Akhila Ranjeev Misra Savithri H.Ezhikode K.Jeena; financial support from ISRO(Sanction Order:No.DS_2B-13013(2)/11/2020-Section2);funded by the National Aeronautics and Space Administration。; We present the results from a long term X-ray analysis of Mrk 279 during the period 2018–2020.We use data from multiple missions–AstroSat,NuSTAR and XMM-Newton,for the purpose.The X-ray spectrum can be modeled as a ...; 关键词：galaxies:Seyfert galaxies:individual(Mrk 335) X-rays:galaxies

Study of Central Intensity Ratio of Seyfert Galaxies in Nearby Universe: 《Research in Astronomy and Astrophysics》2023年第4期85-93,共9页K.T.Vinod C.Baheeja S.Aswathy C.D.Ravikumar; the financial support from the Council of Scientific&Industrial Research (CSIR),Government of India。; We use the recently discovered simple photometric parameter Central Intensity Ratio(CIR)determined for a sample of 57 nearby(z<0.02)Seyfert galaxies to explore the central features of galaxies and their possible conne...; 关键词：Galaxy evolution-galaxies active-galaxies photometry-(galaxies:)quasars supermassive black holes-galaxies SEYFERT

Jet Formation Mechanism of the Gamma-Ray-emitting Narrow-line Seyfert 1 Galaxies: 《Research in Astronomy and Astrophysics》2022年第9期72-76,共5页Yongyun Chen Qiusheng Gu Junhui Fan Xiaoling Yu Dingrong Xiong Nan Ding Xiaotong Guo Xue Ge; supported from the research project of Qujing Normal University (Grant No. 2105098001/094);supported by the youth of Yunnan Provincial Science and Technology Department (Grant Nos. 202101AU070146 and 2103010006);supported by the National Natural Science Foundation of China (NSFC, Grant Nos.11733001, 11733002 and 11773013);supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402703);financial support from the National Natural Science Foundation of China (NSFC, Grant No. 12103022);the Special Basic Cooperative Research Programs of Yunnan Provincial Undergraduate Universities Association (No.202101BA070001-043)。; We use a large sample of gamma-ray narrow-line Seyfert 1 galaxies(γ-NLS1 s) to study the jet formation mechanisms. We find that the jet power of γ-NLS1 s is lower than the maximum jet power of the Blandford–Payne(B...; 关键词：galaxies:active galaxies:jets galaxies:Seyfert

Multicolor Optical Monitoring of the γ-Ray Emitting Narrow-line Seyfert 1 Galaxy PMN J0948+0022 from 2020 to 2021: 《Research in Astronomy and Astrophysics》2022年第7期60-72,共13页Yu-Xin Xin Ding-Rong Xiong Jin-Ming Bai Hong-Tao Liu Kai-Xing Lu Ji-Rong Mao; supported by the National Key R&D Program of China with No. 2021YFA1600404;the National Natural Science Foundation of China (NSFC, grant Nos. 11991051, Y911080201, 12073068, 11673062, 11703077, 11703078);the CAS “Light of West China” Program, the Yunnan Province Foundation (2019FB004, 202001AT070069);Yunnan Province Youth Top Talent Project (YNWR-QNBJ-2020-116);the science research grants from the China Manned Space Project with NO. CMS-CSST-2021-A06 and CMS-CSST2021-A05。; In order to study the physical properties of the γ-ray emitting narrow-line Seyfert 1(NLS1) galaxy population,photometric and spectral observations of the γ-ray emitting NLS1 PMN J0948+0022 were made with the Lijian...; 关键词：galaxies:jets galaxies:photometry galaxies:Seyfert galaxies:active

The Origin of The Soft X-Ray Excess in the Seyfert 1.5 Galaxy ESO 362-G18: 《Research in Astronomy and Astrophysics》2022年第3期10-32,共23页Xiao-Gu Zhong Jian-Cheng Wang; financial supports from the National Natural Science Foundation of China(Grant Nos.11133006 and 11173054);the National Basic Research Program of China(973 Program 2009CB824800);the Policy Research Program of Chinese Academy of Sciences(KJCX2-YW-T24)。; We review the Seyfert 1.5 Galaxy ESO 362-G18 for exploring the origin of the soft X-ray excess.The Warm Corona and Relativistic Reflection models are two main scenarios to interpret the soft X-ray excess in active gal...; 关键词：galaxies:active galaxies:individual(ESO 362-G18) galaxies:Seyfert

B3 0749+460A: A New Repeat “Changing-look” Active Galactic Nucleus Associated with X-Ray Spectral Slope Variations被引量：1: 《Research in Astronomy and Astrophysics》2022年第1期114-125,共12页J.Wang W.K.Zheng D.W.Xu T.G.Brink A.V.Filippenko C.Gao S.S.Sun J.Y.Wei; support from the National Key Research and Development Project of China (grant 2020YFE0202100);supported by the National Natural Science Foundation of China (Grants No.11773036 and 12173009);Strategic Pioneer Program on Space Science;Chinese Academy of Sciences,grants XDA15052600 and XDA15016500;supported by the Natural Science Foundation of Guangxi(2020GXNSFDA238018);the Bagui Young Scholars Program;supported by the Open Project Program of the Key Laboratory of Optical Astronomy,NAOC,CAS;supported by the Christopher R.Redlich Fund and the Miller Institute for Basic Research in Science (in which A.V.F.is a Senior Miller Fellow) funded by the National Aeronautics and Space Administration (NASA);partially supported by a generous gift from Google。; Here we report an identification of B3 0749+460 A as a new double-peaked local "changing-look" active galactic nucleus(CL-AGN) in terms of our multi-epoch spectroscopic analysis. By comparing our new spectra taken in ...; 关键词：galaxies:Seyfert galaxies:nuclei (galaxies:)quasars:emission lines (galaxies:)quasars:individual(B30749+460A) X-rays:galaxies

The Variability of the Narrow-line Seyfert 1 Galaxies from the Pan-STARRS's View: 《Research in Astronomy and Astrophysics》2022年第1期148-155,共8页Hong-Tao Wang Yan-Ping Su Xue Ge Yong-Yun Chen Xiao-Ling Yu; funded by the the Fundamental Research Funds for the Universities in Hebei Province (No:JYQ202003)。; By means of the data sets from the Pan-STARRS1 survey, we have systematically examined the relationship between the variability characteristics and the physical parameters of the largest NLS1 galaxy sample up to now.T...; 关键词：catalogs galaxies:photometry galaxies:Seyfert

X-ray spectral evolution in an X-ray changing-look AGN NGC 1365 with variable column density: 《Research in Astronomy and Astrophysics》2021年第8期159-166,共8页Hao Liu Qing-Wen Wu Yong-Quan Xue Ting-Gui Wang Jun Yang Heng-Xiao Guo Zhi-Cheng He; support from the National Natural Science Foundation of China (NSFC,Grant No.U1931203);support from NSFC (Grant Nos.12025303,11890693 and 11421303);the CAS Frontier Science Key Research Program (QYZDJ-SSWSLH006);the K.C.Wong Education Foundation.Z.C.He is supported by NSFC (Grant No.11903031);USTC Research Funds of the Double First-Class Initiative YD 3440002001;supported by NSF grant AST1907290。; X-ray changing-look active galactic nuclei(CL AGNs) are a subpopulation of AGNs,whose lineof-sight column densities increase/decrease within several years.The physical mechanism for the variation of column density is ...; 关键词：galaxies:active galaxies:Seyfert quasars:emission lines accretion accretion disks

Lsyn-Esyn,p-δrelation in active galactic nucleus jets and implication for the physical origin of the Lp-Ep,z-Γ_0 relation of gamma-ray bursts: 《Research in Astronomy and Astrophysics》2020年第9期201-209,共9页Xiao-Li Huang En-Wei Liang; the National Natural Science Foundation of China(Grant Nos.11533003,11851304 and U1731239);Guangxi Science Foundation and special funding for Guangxi distinguished professors(2017AD22006)。; High energy photon radiations of gamma-ray bursts(GRBs)and active galactic nuclei(AGNs)are dominated by their jet radiations.We examine whether the synchrotron radiations of jets in BL Lacs,flat spectrum radio quasars...; 关键词：gamma-ray burst:general quasars:general BL Lacertae objects:general galaxies:Seyfert stars:jets radiation mechanisms:non-thermal

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