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)...
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...
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...
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...
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...
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...
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...
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...
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...
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...