AGNS

作品数:37被引量:20H指数:2
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相关作者:罗阿理吴福朝张晋胡占义李乡儒更多>>
相关机构:中国科学院国家天文台中国科学技术大学中国科学院自动化研究所云南师范大学更多>>
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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国家高技术研究发展计划广东省自然科学基金更多>>
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Low-mass and high-mass supermassive black holes in radio-loud AGNs are spun-up in different evolution paths
《Research in Astronomy and Astrophysics》2019年第10期59-64,共6页Jing Wang Min-Zhi Kong Shun-Fang Liu Da-Wei Xu Qiang Zhang Jian-Yan Wei 
supported by the National Natural Science Foundation of China (NSFC; Grant Nos. 11773036 and 11473036);supported by the NSFC Youth Foundation (11303008) and by the Astronomical Union Foundation (U1831126);supported by the National Basic Research Program of China (2014CB845800), the NSFC (11533003);the Strategic Pioneer Program on Space Science, Chinese Academy of Sciences (XDA 15052600 and XDA 15016500);paritally supported by the Bagui Young Scholars Program;the Natural Science Foundation of Guangxi (2018GXNSF GA281007)
How supermassive black holes(SMBHs) are spun-up is a key issue in modern astrophysics. As an extension to the study in Wang et al., here we address the issue by comparing the host galaxy properties of nearby(z < 0.05)...
关键词:GALAXIES bulges-galaxies nuclei-galaxies SEYFERT 
Relativistic beaming effect for blazars被引量:1
《Science China(Physics,Mechanics & Astronomy)》2011年第12期2265-2270,共6页PAN Jing FAN JunHui 
supported by the National Natural Science Foundation of China (Grant Nos.10633010 and 11173009);the National Basic Research Program of China (Grant No.2007CB815405);the Bureau of Education of Guangzhou Municipality (Grant No.11 Sui-Jiao-Ke [2009]);Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme-GDUPS (2009);the Yangcheng Scholar Funded Scheme (Grant No.10A027S)
In this paper, we revisit the relationship between the spectral index and the core-dominance parameter using a larger sample of 157 blazars (23 BL Lacertae objects and 134 flat spectrum radio quasars), compiled from t...
关键词:active galactic nuclei (AGNs) BL Lac objects QUASARS JET 
Quasar SDSS J142507.32+323137.4: dual AGNs?
《Research in Astronomy and Astrophysics》2011年第4期411-418,共8页Zhi-Xin Peng Yan-Mei Chen Qiu-Sheng Gu Chen Hu 
supported by the National Natural Science Foundation of China(NSFC; Grant Nos. 10878010, 11003007 and 10633040);the National Basic Research Program(973 program No. 2007CB815405)
We analyze the optical spectrum of type 1 QSO SDSS J1425+3231. This object is interesting since its narrow emission lines, such as [O Ⅲ]λλ4959, 5007, are double-peaked, and the line structure can be modeled well b...
关键词:galaxie active -- galaxies individual (SDSS J142507.32+323137.4)-- quasars emission lines 
The central black hole masses for the γ-ray loud blazars被引量:6
《Science China(Physics,Mechanics & Astronomy)》2010年第10期1921-1927,共7页YANG JiangHe FAN JunHui 
supported by the National Natural Science Foundation of China (Grant Nos. 10573005 and 10633010);the National Basic Research Program of China (Grant No. 2007CB815405);Hunan Provincial Natural Science Foundation of China (Grant No. 10JJ3020);the Fund of the 11th Five-year Plan for Key Construction Academic Subject (Optics) of Hunan Province
The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope (formerly GLAST) provides an increase in sensitivity and has detected rapid variability of gamma-ray sources.The variability time scales detected f...
关键词:active galactic nuclei(AGNs) time scale central black hole mass Doppler factor 
Fe Kα line profile in AGNs: average shape and redshift dependence
《Research in Astronomy and Astrophysics》2010年第9期905-914,共10页Wei-Ming Mao Chen Hu Jian-Min Wang Gang Zhao Shu Zhang 
the National Natural Science Foundation of China (NSFC; Grant No. 10821061);the National Basic Research Program of China (973 program; Nos. 2007CB815103 and 2009CB824800)
We collect a sample of 381 (271 type Ⅰ) active galactic nuclei (AGNs) with XMM-Newton observations for an analysis of the dependence of Fe Kα profiles on redshifts to test the potential cosmological evolution of...
关键词:GALAXIES active -- X-rays general -- methods data analysis 
Possible γ-ray emission of radio intermediate AGN Ⅲ Zw 2 and its implication on the evolution of jets in AGNs被引量:1
《Research in Astronomy and Astrophysics》2010年第8期707-712,共6页Liang Chen Jin-Ming Bai Jin Zhang Hong-Tao Liu 
the West Ph.D. project of the Training Programme for the Talents of the West Light Foundation of the CAS;the National Natural Science Foundation of China (NSFC;Grant Nos.10903025 and 10778702) for financial support;the National Natural Science Foundation of China (Grant No.10973034);the 973 Program (Grant No.2009CB824800)
AGNs with hard γ-ray emission identified so far are radio-loud. Ⅲ Zw 2 is a radio intermediate AGN with a relativistic jet. We study its spectral energy distribution (SED) and find that the broad band emissions ar...
关键词:GALAXIES active -- galaxies Seyfert- galaxies jets -- radiation mechanisms NON-THERMAL 
New insights into AGNs with low-mass black holes and high accretion rates:the case of narrow-line Seyfert 1 galaxies被引量:1
《Science China(Physics,Mechanics & Astronomy)》2010年第S1期216-219,共4页KOMOSSA S 
supported by the National Basic Research Program of China-973 (Grant No. 2009CB824800);the National Natural Science Foundation of China (Grant No. 10873017)
Narrow-line Seyfert 1(NLS1) galaxies are believed to harbor low-mass black holes accreting at high rates,and they are therefore important targets when studying the nature of black hole growth,galaxy evolution,and accr...
关键词:active GALACTIC nuclei emission lines density OUTFLOW 
Progress of research on AGNs at the Urumqi Observatory
《Science China(Physics,Mechanics & Astronomy)》2010年第S1期244-246,共3页T.P.KRICHBAUM L.FUHRMANN N.MARCHILI 
supported by the National Basic Research Program of China (Grant No. 2009CB824800);the National Natural Science Foundation of China (Grant No. 10773019)
We report the progress on Very Long Baseline Interferometry(VLBI) observations of Gigahertz Peaked Spectrum(GPS) radio sources,and single-dish observations of active galactic nuclei(AGNs).The GPS sources are a kind of...
关键词:active GALACTIC NUCLEI VLBI intra-day variability 
Diagnostics for the structure of AGNs'broad line regions with reverberation mapping data:confirmation of the two-component broad line region model被引量:1
《Science China(Physics,Mechanics & Astronomy)》2010年第S1期196-201,共6页ZHU Ling1 & ZHANG ShuangNan2 1 Department of Physics and Tsinghua Center for Astrophysics,Tsinghua University,Beijing 100084,China 2 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 
support by the Directional Research Project of the Chinese Academy of Sciences (Grant No. KJCX2-YW-T03);the Na-tional Natural Science Foundation of China (Grant Nos. 10821061,10733010,10725313);the National Basic Research Program of China (Grant No. 2009CB824800)
We re-examine the ten Reverberation Mapping(RM) sources with public data based on the two-component model of the Broad Line Region(BLR).In fitting their broad Hβ Mlines,six of them only need one Gaussian component,on...
关键词:BROAD line region AGN REVERBERATION Mapping cross correlation 
Chandra archival study of (U)LIRGs with a double nucleus:binary AGNs?
《Research in Astronomy and Astrophysics》2010年第4期309-328,共20页Jing-Bo Wang Yu Gao 
supported by the National Natural Science Foundation of China(Distinguished Young Scholars,Grant Nos.10425313,10833006 and 10621303);Chinese Academy of Sciences’Hundred Talent Program;973 project of the Ministry of Science and Technology of China(GrantNo.2007CB815406)
We present our initial results from a study of 14 (U)LIRGs with a doublenucleus (z 〈0.15) and an AGN signature in the Chandra archive.The goals of our study are to search for more possible cases of binary AGNs an...
关键词:GALAXIES active-galaxies nuclei-infrared galaxies-X-ray galaxies-galaxies individuals(Mrk 266 NGC 7592 IRAS 14348-1447 IRAS 08572+3915  Zw 035) 
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