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
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- Nanjing UniversityCN156 papers
- Centre National de la Recherche ScientifiqueFR138 papers
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- Institute of High Energy PhysicsCN122 papers
36 papers · 1 filter
An Interferometric Spectral-line Survey of IRC+10216 in the 345 GHz Band
Nimesh A. Patel, Ken H. Young, Carl A. Gottlieb +10
We report a spectral-line survey of the extreme carbon star IRC+10216 carried out between 293.9 and 354.8 GHz with the Submillimeter Array. A total of 442 lines were detected, more…
A New Method to Study the Origin of the EGB and the First Application on AT20G
Ming Zhou, Jiancheng Wang, Xiaoyan Gao
In this letter, we introduce a new method of image stacking to directly study the undetected but possible gamma-ray point sources. Applying the method to the Australia Telescope 20…
X-Ray Properties of Narrow-Line Seyfert 1 Galaxies with Very Small Broad-Line Widths
Y. L. Ai, W. Yuan, H. Y. Zhou +2
Narrow-line Seyfert\,1 galaxies (NLS1s) with very small broad-line widths (say, FWHM(\hb) $\la $ 1200\,\kms) represent the extreme type of Seyfert\,1 galaxies that have small black…
The effect of coronal radiation on a residual inner disk in the low/hard spectral state of black hole X-ray binary systems
B. F. Liu, C. Done, Ronald E. Taam
Thermal conduction between a cool accretion disk and a hot inner corona can result in either evaporation of the disk or condensation of the hot corona. At low mass accretion rates,…
A High-Order WENO-based Staggered Godunov-type Scheme with Constrained Transport for Force-free Electrodynamics
Cong Yu
The force-free (or low inertia) limit of magnetohydrodynamics (MHD) can be applied to many astrophysical objects, including black holes, neutron stars, and accretion disks, where t…
X-ray observational signature of a black hole accretion disc in an active galactic nucleus RXJ1633+4718
Weimin Yuan, Bifang Liu, Hongyan Zhou +1
We report the discovery of a luminous ultra-soft X-ray excess in a radio-loud narrow-line Seyfert1 galaxy, RXJ1633+4718, from archival ROSAT observations. The thermal temperature o…
Is Low-Frequency-Peaked BL Lac Object OJ 287 a TeV Emitter?
Chen Liang, Bai Jin-Ming
It is well known that there are only two low-frequency-peaked BL Lac objects (LBLs: BL Lacertae and S5 0716+714) and one flat spectrum radio quasar (FSRQ: 3C 279) among more than 3…
On the formation of single and binary helium-rich sdO stars
Stephen Justham, Philipp Podsiadlowski, Zhanwen Han
We propose a formation channel for the previously unexplained helium-rich subdwarf O (He-rich sdO) stars in which post-subdwarf B (sdB) stars (i.e. hybrid COHe white dwarfs) reigni…
The orbital period analyses for two cataclysmic variables: UZ Fornacis and V348 Puppis inside Period Gap
Z. -B. Dai, S. -B. Qian, E. Fernandez Lajus +1
Four newest CCD eclipse timings of the white dwarf for polar UZ Fornacis and Six updated CCD mid-eclipse times for SW Sex type nova-like V348 Puppis are obtained. The detailed O-C…
Spectroscopy and kinematics of low-mass members of young moving groups
M. C. Galvez-Ortiz, J. R. A. Clarke, D. J. Pinfield +8
We study a target sample of 68 low-mass objects (with spectral types in the range M4.5-L1) previously selected via photometric and astrometric criteria, as possible members of five…
Searching for differences in Swift's intermediate GRBs
A. de Ugarte Postigo, I. Horváth, P. Veres +16
Gamma-ray bursts are usually classified through their high-energy emission into short-duration and long-duration bursts, which presumably reflect two different types of progenitors…
The most plausible explanation of the cyclical period changes in close binaries: the case of the RS CVn-type binary WW Dra
W. -P Liao, S. -B Qian
We searched the orbital period changes in 182 EA-type (including the 101 Algol systems used by \cite{hal89}), 43 EB-type and 53 EW-type binaries with known both the mass ratio and…
On the scattering enhancement of Nv1240 emission line of quasi-stellar objects
Huiyuan Wang, Tinggui Wang, Weimin Yuan +3
The Nv emission line of active galactic nuclei shows peculiar behavior in the line--continuum correlation, which may be indicative of an extra line component in addition to that fr…
Helium star evolutionary channel to super-Chandrasekhar mass type Ia supernovae
W. -M. Liu, W. -C. Chen, B. Wang +1
Recent discovery of several overluminous type Ia supernovae (SNe Ia) indicates that the explosive masses of white dwarfs may significantly exceed the canonical Chandrasekhar mass l…
Constraining Extragalactic Background Light From TeV Blazars
Jianping Yang, Jiancheng Wang
Our goal is to research the upper limits on the extragalactic background light (EBL). The upper limits on the extragalactic background light (EBL), using the Fermi and very high en…
The effects of UV photometry and binary interactions on photometric redshift and galaxy morphology
F. Zhang, Z. Han, L. Li +2
Using the Hyperz code and a template spectral library which consists of 4 observed galaxy spectra from Coleman, Wu & Weedman (CWW, 1980) and 8 spectral families built with evolutio…
Redshifts of distant blazar limited by Fermi and VHE -ray observations
Jianping Yang, Jiancheng Wang
Our goal is to limit the redshifts of three blazars PG 1553+113, 3C 66A and PKS 1424+240, through the investigation of their Fermi and VHE (very high energy) -ray observations.…
The Phase Shifts of the Paired Wings of Butterfly Diagrams
Kejun Li, Hongfei Liang, Wen Feng
Sunspot groups observed by Royal Greenwich Observatory/US Air Force/NOAA from May 1874 to November 2008 and the Carte Synoptique solar filaments from March 1919 to December 1989 ar…
The Temporal and Spectral Characteristics of "Fast Rise and Exponential Decay" Gamma-Ray Burst Pulses
Z. Y. Peng, Y. Yin, X. W. Bi +4
In this paper we have analyzed the temporal and spectral behavior of 52 Fast Rise and Exponential Decay (FRED) pulses in 48 long-duration gamma-ray bursts (GRBs) observed by the CG…
Adiabatic Mass Loss in Binary Stars - I. Computational Method
Hongwei Ge, Michael S. Hjellming, Ronald F. Webbink +2
The asymptotic response of donor stars in interacting binary systems to very rapid mass loss is characterized by adiabatic expansion throughout their interiors. In this limit, ener…
A Theoretical Investigation on the Gamma-ray Burst Host Galaxies
J. Mao
Long-duration gamma-ray bursts(LGRBs) are believed to be linked with the star formation. We adopt a galactic evolution model, in which the star formation process inside the viriali…
Dependence of the optical/UV variability on the emission line properties and Eddington ratio in active galactic nuclei
Y. L. Ai, W. Yuan, H. Y. Zhou +4
The dependence of the long-term optical/UV variability on the spectral and the fundamental physical parameters for radio-quiet active galactic nuclei (AGNs) is investigated. The mu…
The bulk Lorentz factors of Fermi-LAT GRBs
Xiaohong Zhao, Zhuo Li, Jinming Bai
The Lorentz factor (LF) of gamma-ray burst (GRB) ejecta may be constrained by observations of high-energy (HE) spectral attenuation. The recent Fermi-LAT observations of prompt GeV…
A likely candidate of type Ia supernova progenitors: the X-ray pulsating companion of the hot subdwarf HD 49798
Bo Wang, Zhanwen Han
HD 49798 is a hydrogen depleted subdwarf O6 star and has an X-ray pulsating companion (RX J0648.0-4418). The X-ray pulsating companion is a massive white dwarf. Employing Eggleton'…