7.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN5.9k papers
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- Yunnan ObservatoriesCN679 papers
- Shanghai Astronomical ObservatoryCN633 papers
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- Tsinghua UniversityCN578 papers
- Kavli Institute for Theoretical SciencesCN552 papers
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- Center for Astrophysics Harvard & SmithsonianUS455 papers
63 papers · 2 filters
Seven-Year Multi-Color Optical Monitoring of BL Lacertae Object S5 0716+714
Yan Dai, Jianghua Wu, Zong-Hong Zhu +4
We have monitored the BL Lac object S5 0716+714 in five intermediate optical wavebands from 2004 September to 2011 April. Here we present the data that include 8661 measurements wh…
Delayed Onset and Fast Rise of Prompt Optical-UV Emission from Gamma-Ray Bursts in Molecular Clouds
Xiao-Hong Cui, Zhuo Li, Li-Ping Xin
Observations imply that long γ-ray bursts (GRBs) are originated from explosions of massive stars, therefore they may occur in the molecular clouds where their progenitors were born…
A Model for the Correlation of Hard X-ray Index with Eddington Ratio in Black Hole X-ray Binaries
ErLin Qiao, B. F. Liu
Observations show that there is a positive correlation between Eddington ratio and hard X-ray index for , and there is an anti-correlation between and $Γ…
A generic method to constrain the dark matter model parameters from Fermi observations of dwarf spheroids
Yue-Lin Sming Tsai, Qiang Yuan, Xiaoyuan Huang
Observation of gamma-rays from dwarf galaxies is an effective way to search for particle dark matter. Using 4-year data of Fermi-LAT observations on a series of Milky Way satellite…
The superslow pulsation X-ray pulsars in high mass X-ray binaries
W. Wang
There exists a special class of X-ray pulsars that exhibit very slow pulsation of s in the high mass X-ray binaries (HMXBs). We have studied the temporal and sp…
Radio and Gamma-ray Pulsed Emission from Millisecond Pulsars
YuanJie Du, GuoJun Qiao, Ding Chen
Pulsed gamma-ray emission from millisecond pulsars (MSPs) has been detected by the sensitive Fermi, which sheds light on studies of the emission region and mechanism. In particular…
AXPs & SGRs: Magnetar or Quarctar?
Guojun Qiao, Xiongwei Liu, Renxin Xu +4
The concept of a "magnetar" was proposed mainly because of two factors. First, the X-ray luminosity of Anomalous X-ray Pulsars (AXPs) and Soft Gamma-Ray Repeaters (SGRs) is larger…
Glitches detected in southern radio pulsars
Meng Yu
Parkes pulse arrival-time data for 165 radio pulsars spanning from 1990 to 2011 have been searched for period glitches. Forty-six events out of the detected 107 glitches were found…
Chandra Observation of a Weak Shock in the Galaxy Cluster A2556
Zhenzhen Qin, Haiguang Xu, Jingying Wang +3
Based on a 21.5 ks \chandra\ observation of A2556, we identify an edge on the surface brightness profile (SBP) at about 160 kpc northeast of the cluster center, and it…
Braking PSR J1734-3333 with a possible fall-back disk
X. W. Liu, R. X. Xu, G. J. Qiao +2
The very small braking index of PSR J1734-3333, , challenges the current theories of braking mechanisms in pulsars. We present a possible interpretation that this puls…
Progenitors of Magnetars and Hyperaccreting Magnetized Disks
Yi Xie, Shuang-Nan Zhang
We propose that a magnetar could be formed during the core collapse of massive stars or coalescence of two normal neutron stars, through collecting and inheriting the magnetic fiel…
Deriving fundamental parameters of millisecond pulsars via AIC in white dwarfs
A. Taani, Y. H. Zhao, A. Moraghan
We present a study of the observational properties of Millisecond Pulsars (MSPs) by way of their magnetic fields, spin periods and masses. These measurements are derived through th…
Radiation Properties of GeV Narrow Line Seyfert 1 Galaxies
Jin Zhang, X. N. Sun, S. N. Zhang +1
The broadband SEDs of four gamma-ray NLS1s are compiled and explained with the leptonic model. It is found that their characteristics and fitting parameters of the observed SEDs ar…
Black hole masses from X-rays
Xin-Lin Zhou, Roberto Soria
We discuss two methods to estimate black hole (BH) masses using X-ray data only: from the X-ray variability amplitude and from the photon index Gamma. The first method is based on…
Rapid Infrared Variability of Three Radio-loud Narrow-line Seyfert 1 Galaxies: A View from the Wide-field Infrared Survey Explorer
Ning Jiang, Hong-Yan Zhou, Luis C. Ho +6
Using newly released data from the Wide-field Infrared Survey Explorer, we report the discovery of rapid infrared variability in three radio-loud narrow-line Seyfert 1 galaxies (NL…
INTEGRAL and Swift observations of the Be X-ray binary 4U 1036-56 (RX J1037.5-5647) and its possible relation with gamma-ray transients
Jian Li, Diego F. Torres, Shu Zhang +3
We present timing, spectral, and long-term temporal analysis of the high mass X-ray binary (HMXB) 4U 1036-56 using INTEGRAL and Swift observations. We show that it is a weak hard X…
A Comprehensive Study of Gamma-Ray Burst Optical Emission: II. Afterglow Onset and Late Re-Brightening Components
En-Wei Liang, Liang Li, He Gao +12
We continue our systematic statistical study of various components in gamma-ray burst (GRB) optical lightcurves. We decompose the early onset bump and the late re-brightening bump…
Radial Angular Momentum Transfer and Magnetic Barrier for Short-Type Gamma-Ray Burst Central Engine Activity
Tong Liu, En-Wei Liang, Wei-Min Gu +5
Soft extended emission (EE) following initial hard spikes up to 100 seconds was observed with {\em Swift}/BAT for about half of short-type gamma-ray bursts (SGRBs). This challenges…
Disk corona interaction: mechanism for the disk truncation and spectrum change in low luminosity AGN
Ronald E. Taam, B. F. Liu, W. Yuan +1
The truncation of an optically thick, geometrically thin accretion disk is investigated in the context of low luminosity AGN (LLAGN). We generalize the disk evaporation model used…
A Broad Iron Line in LMC X-1
James F. Steiner, Rubens C. Reis, Andrew C. Fabian +6
We present results from a deep Suzaku observation of the black hole in LMC X-1, supplemented by coincident monitoring with RXTE. We identify broad relativistic reflection features…
Hyper-accreting black hole as GRB central engine. I: Baryon loading in GRB jets
Wei-Hua Lei, Bing Zhang, En-Wei Liang
A hyper-accreting stellar-mass black hole has been long speculated as the best candidate of central engine of gamma-ray bursts (GRBs). Recent rich observations of GRBs by space mis…
Common Envelope Evolution: Where we stand and how we can move forward
N. Ivanova, S. Justham, X. Chen +16
This work aims to present our current best physical understanding of common-envelope evolution (CEE). We highlight areas of consensus and disagreement, and stress ideas which shoul…
Why do the braking indices of pulsars span a range of more than 100 millions?
Shuang-Nan Zhang, Yi Xie
Here we report that the observed braking indices of the 366 pulsars in the sample of Hobbs et al. range from about to about and are significantly correlated with th…
Testing Models of Magnetic Field Evolution of Neutron Stars with the Statistical Properties of Their Spin Evolutions
Shuang-Nan Zhang, Yi Xie
We test models for the evolution of neutron star (NS) magnetic fields (B). Our model for the evolution of the NS spin is taken from an analysis of pulsar timing noise presented by…