2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN1.5k papers
- National Astronomical ObservatoriesCN680 papers
- University of Chinese Academy of SciencesCN676 papers
- Peking UniversityCN213 papers
- Shanghai Astronomical ObservatoryCN179 papers
- University of Science and Technology of ChinaCN176 papers
- Purple Mountain ObservatoryCN175 papers
- Yunnan UniversityCN159 papers
- Nanjing UniversityCN156 papers
- Centre National de la Recherche ScientifiqueFR138 papers
- Tsinghua UniversityCN135 papers
- Institute of High Energy PhysicsCN122 papers
98 papers · 1 filter
A New Diagnostic Method for Assessment of Stellar Stratification in Star Clusters
Dimitrios A. Gouliermis, Richard de Grijs, Yu Xin
We propose a new method for the characterization of stellar stratification in stellar systems. The method uses the mean-square radius (also called the Spitzer radius) of the system…
Results of WEBT, VLBA and RXTE monitoring of 3C 279 during 2006-2007
V. M. Larionov, S. G. Jorstad, A. P. Marscher +2
We present radio-to-optical data taken by the WEBT, supplemented by VLBA and RXTE observations, of 3C 279. Our goal is to use this extensive database to draw inferences regarding t…
Plasmoids in Reconnecting Current Sheets: Solar and Terrestrial Contexts Compared
J. Lin, S. R. Cranmer, C. J. Farrugia
Magnetic reconnection plays a crucial role in violent energy conversion occurring in the environments of high electrical conductivity, such as the solar atmosphere, magnetosphere,…
Absorption of 10--200 Gev Gamma Rays by Radiation from BLR in Blazars
H. T. Liu, J. M. Bai
In this paper, we study the photon-photon pair production optical depth for gamma-rays with energies from 10 to 200 GeV emitted by powerful blazars due to the diffuse radiation fie…
Absorption of 10 Gev--1 Tev Gamma Rays by Radiation from Broad-Line Region in 3C 279
H. T. Liu, J. M. Bai, L. Ma
In this paper, we study the photon-photon pair production optical depth for 10 GeV--1 TeV gamma rays from 3C 279 due to the diffuse radiation of broad-line region (BLR). Assuming a…
The evolutionary status of W Ursae Majoris-type systems
Lifang Li, Fenghui Zhang, Zhanwen Han +2
Well-determined physical parameters of 130 W UMa systems have been collected from the literature. Based on these data, the evolutionary status and dynamical evolution of W UMa syst…
Solar Models with Revised Abundances and Opacities
W. M. Yang, S. L. Bi
Using reconstructed opacities, we construct solar models with low heavy-element abundance. Rotational mixing and enhanced diffusion of helium and heavy elements are used to reconci…
A search for southern ultracool dwarfs in young moving groups
J. R. A. Clarke, D. J. Pinfield, M. C. Galvez-Ortiz +7
We associate 132 low-mass ultracool dwarfs in the southern hemisphere as candidate members of five moving groups using photometric and astrometric selection techniques. Of these ob…
Discovery of superstrong, fading, iron line emission and double-peaked Balmer lines of the galaxy SDSSJ0952+2143 - the light echo of a huge flare
S. Komossa, H. Zhou, T. Wang +9
We report the discovery of superstrong, fading, high-ionization iron line emission in the galaxy SDSSJ095209.56+214313.3 (SDSSJ0952+2143 hereafter), which must have been caused by…
Broad-line and Multi-wave Band Emission from Blazars
T. F. Yi, G. Z. Xie
We study the correlations of the flux of the broad-line emission () with the X-ray emission flux, optical emission flux at 5500 Åand radio emission flux at 5 GHz, respecti…
Tests for Standard Accretion Disk Models by Variability in Active Galactic Nuclei
H. T. Liu, J. M. Bai, X. H. Zhao +1
In this paper, standard accretion disk models of AGNs are tested using light curves of 26 objects well observed for reverberation mapping. Time scales of variations are estimated b…
Spins of the supermassive black hole in M87: new constraints from TeV observations
Jian-Min Wang, Yan-Rong Li, Jain-Cheng Li +1
The rapid TeV ray variability detected in the well-known nearby radio galaxy M87 implies an extremely compact emission region (5-10 Schwarzschild radii) near the horizon of the…
Radio-to-UV monitoring of AO 0235+164 by the WEBT and Swift during the 2006--2007 outburst
C. M. Raiteri, M. Villata, V. M. Larionov +2
The blazar AO 0235+164 was claimed to show a quasi-periodic behaviour in the radio and optical bands. Moreover, an extra emission component contributing to the UV and soft X-ray fl…
Optical Intra-day Variability in Blazars
A. C. Gupta, J. H. Fan, J. M. Bai +1
We selected a sample of a dozen blazars which are the prime candidates for simultaneous multi-wavelength observing campaigns in their outburst phase. We searched for optical outbur…
A New Scenario on X-ray Shallow Decay of Gamma-ray Bursts
Jirong Mao, Jiancheng Wang
In this Letter, we propose that a microphysical process takes a vital role in the shocked region in which the prompt emission of GRBs is emitted. The turbulent energy is included i…
Initial-Final Mass Relationship for Stars of Different Metallicities
X. Meng, X. Chen, Z. Han
Following Paczyński & Ziólkowski (1968) and Han et al. (1994), we assume that the envelope of an asymptotic giant branch (AGB) or a first giant branch (FGB) star is lost when the b…
Knot in Cen A: Stochastic Magnetic Field for Diffusive Synchrotron Radiation?
Jirong Mao, Jiancheng Wang
The emission of relativistic electrons moving in the random and small-scale magnetic field is presented by diffusive synchrotron radiation (DSR). In this Letter, we revisit the per…
Dependence of Temporal Properties on Energy in Long-Lag, Wide-Pulse Gamma-Ray Bursts
Fu-Wen Zhang, Yi-Ping Qin, Bin-Bin Zhang
We employed a sample compiled by Norris et al. (2005, ApJ, 625, 324) to study the dependence of the pulse temporal properties on energy in long-lag, wide-pulse gamma-ray bursts. Ou…
Metal Enriched Outflows and Dusty starburst in the type II quasar Q 1321+058
Ting-Gui Wang, Hongyan Zhou, Honglin Lu +3
We present an analysis of the emission line property and the broad band spectral energy distribution of the ultra-luminous infrared Type II quasar Q132+058. The optical and ultravi…
Swift observations of GRB 070110: an extraordinary X-ray afterglow powered by the central engine
E. Troja, G. Cusumano, P. O'Brien +22
We present a detailed analysis of Swift multi-wavelength observations of GRB 070110 and its remarkable afterglow. The early X-ray light curve, interpreted as the tail of the prompt…
BL Lac Objects in the Sloan Digital Sky Survey (SDSS)
A. C. Gupta, W. Yuan, X. Dong +3
We collected a sample of 661 confirmed and 361 possible BL Lac candidates from the recent catalog of BL Lac objects (Veron-Cetty & Veron 2006). We searched these sources in the rec…
Broad-line AGNs with Candidate Intermediate-mass Black holes in the Sloan Digital Sky Survey
Xiaobo Dong, Tinggui Wang, Weimin Yuan +5
We have conducted a systematic search of AGNs with IMBHs from the SDSS DR4. As results we found 245 candidates of broad-line AGN with M_{BH}<10^6 \Msun estimated from the luminosit…
Systematic study of a large sample of NLS1 galaxies from SDSS: first results
Weimin Yuan, Hongyan Zhou, Tinggui Wang +6
This proceedings contribution summarizes first results obtained from a systematic study of 2011 NLS1 galaxies, as presented in Zhou et al. (2006, ApJS 166, 128). The sample was com…
Observations of AGNs using PACT
D. Bose, V. R. Chitnis, P. R. Vishwanath +5
We report our observations on 4 AGNs viz, Mkn421, Mkn501, 1ES1426+428 and ON231 belonging to a sub-class called blazars. The observations were carried out using the Pachmarhi Array…