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
- University of Chinese Academy of SciencesCN2.2k papers
- Peking UniversityCN1.2k papers
- Centre National de la Recherche ScientifiqueFR759 papers
- Yunnan ObservatoriesCN679 papers
- Shanghai Astronomical ObservatoryCN633 papers
- Beijing Normal UniversityCN629 papers
- Purple Mountain ObservatoryCN616 papers
- Tsinghua UniversityCN578 papers
- Kavli Institute for Theoretical SciencesCN552 papers
- Nanjing UniversityCN462 papers
- Center for Astrophysics Harvard & SmithsonianUS455 papers
62 papers · 2 filters
Reexamination of the galaxy formation-regulated gas evolution model in groups and clusters
Xiang-Ping Wu, Yan-Jie Xue
As an alternative explanation of the entropy excess and the steepening of the X-ray luminosity-temperature relation in groups and clusters, the galaxy formation-regulated gas evolu…
Principal component analysis for spectral indices of stellar populations
Xu Kong, Fuzhen Cheng
We apply the method of principal component analysis to a sample of simple stellar populations to select some age-sensitive spectral indices. Besides the well-known age-sensitive in…
1RXS J232953.9+062814: a New SU UMa Dwarf Nova below the Period Minimum
J. Y. Wei, X. J. Jiang, D. W. Xu +2
1RXS J232953.9+062814 was identified as a cataclysmic variable by Wei et al. (1999). Four low-resolution spectra of 1RXS J232953.9+062814 were obtained by using the 2.16-m telescop…
Feeding black holes at galactic centres by capture from isothermal cusps
HongSheng Zhao, Martin G. Haehnelt, Martin J. Rees
We estimate the rate at which stars are captured by supermassive black holes (BHs) in the centres of bulges and elliptical galaxies assuming that these initially had an isothermal…
Annual Modulation in the Variability Properties of the IDV-Source 0917+624 ?
L. Fuhrmann, T. P. Krichbaum, G. Cimò +6
There is new evidence which identifies seasonal changes of the variability time scale in intraday variable sources with refractive interstellar scintillation effects. Such a RISS-m…
Relation between radio core length and black hole mass for active galactic nuclei
Xinwu Cao, D. R. Jiang
We explore the relation between the linear length of radio core and the central black hole mass for a sample of radio-loud active galactic nuclei (AGNs). An empirical relation betw…
Intermediate-band Surface Photometry of the Edge-on Galaxy: NGC 4565
Hong Wu, Dave Burstein, Zugan Deng
We present a deep, 42.79 hr image of the nearby, edge-on galaxy NGC 4565 in the Beijing-Arizona-Taipei-Connecticut (BATC) 6660A band using the large-format CCD system on the 0.6m S…
Discover of the "missing" mode in HR 1217 by the Whole Earth Telescope
D. W. Kurtz, S. D. Kawaler, R. L. Riddle et al.
HR 1217 is a prototypical rapidly oscillating Ap star that has presented a test to the theory of nonradial stellar pulsation. Prior observations showed a clear pattern of five mode…
On The Low Frequency Quasi Periodic Oscillations of X-ray Sources
C. M. Zhang
Based on the interpretation of the twin kilohertz Quasi Periodic Oscillations (kHz QPOs) of X-ray spectra of Low Mass X-Ray Binaries (LMXBs) to the Keplerian and the periastron pre…
Pulsar Timing at Urumqi Astronomical Observatory: Observing System and Results
N. Wang, R. N. Manchester, J. Zhang +5
A pulsar timing system has been operating in the 18-cm band at the Urumqi Astronomical Observatory 25-m telescope since mid-1999. Frequency resolution allowing dedispersion of the…
Kinetic equilibrium of iron in the atmospheres of cool dwarf stars II. Weak Fe I lines in the solar spectrum
T. Gehren, A. J. Korn, J. Shi
NLTE line formation calculations of FeI in the solar atmosphere are extended to include weak optical lines. Previously established atomic models are used to discriminate between di…
Variability of Soft X-ray Spectral Shape: Narrow-Line Seyfert 1 Galaxies versus Broad-Line Seyfert 1 Galaxies
Linpeng Cheng, Jianyan Wei, Yongheng Zhao
In order to understand how the soft X-ray spectra vary we present the Hardness Ratio 1 versus Count Rates (HR1-CTs) correlation of 8 Narrow-line Seyfert 1 Galaxies (NLS1s) and 14 B…
Measuring the galaxy power spectrum with multiresolution decomposition -- IV. redshift distortion
Xiao-Hu Yang, Long-Long Feng, Yao-Quan Chu +1
In this paper, we develop a theory of redshift distortion of the galaxy power spectrum in the discrete wavelet transform (DWT) representation. Because the DWT power spectrum is dep…
LCDM-based models for the Milky Way and M31 I: Dynamical Models
Anatoly Klypin, HongSheng Zhao, Rachel S. Somerville
We apply standard disk formation theory with adiabatic contraction within cuspy halo models predicted by the standard LCDM cosmology. The resulting models score remarkably well whe…
Pulsars in FIRST Observations
X. H. Li, J. L. Han
We identified 16 pulsars from the Faint Images of the Radio Sky at Twenty-cm (FIRST) at 1.4 GHz. Their positions and total flux densities are extracted from the FIRST catalog. Comp…
Magnetic fields in our Galaxy: How much do we know? (II) Halo fields and the global field structure
Jinlin Han
I review the large scale global magnetic field structure of our Galaxy, using all information available for disk fields, halo fields and magnetic fields near the Galactic center (G…
On black hole masses, radio-loudness and bulge luminosities of Seyfert galaxies
Xue-Bing Wu, J. L. Han
We estimated black hole masses for 9 Seyfert 1 and 13 Seyfert 2 galaxies in the Palomar and CfA bright Seyfert samples using the tight correlation between black hole mass and bulge…
On the Abundance of Potassium in Metal-Poor Stars
Yoichi Takeda, Gang Zhao, Yu-Qin Chen +2
Based on extensive statistical-equilibrium calculations, we performed a non-LTE analysis of the K {\sc i} 7699 equivalent-width data of metal-deficient stars for the purpose of cla…
Inclinations and black hole masses of Seyfert 1 galaxies
Xue-Bing Wu, J. L. Han
A tight correlation of black hole mass and central velocity dispersion has been found recently for both active and quiescent galaxies. By applying this correlation, we develop a si…
Pulsar braking index: A test of emission models?
R. X. Xu, G. J. Qiao
Pulsar braking torques due to magnetodipole radiation and to unipolar generator are considered, which results in braking index being less than 3 and could be employed to test the e…
Cataclysmic Variables with Evolved Secondaries and the Progenitors of AM CVn Stars
Ph. Podsiadlowski, Z. Han, S. Rappaport
We present the results of a systematic study of cataclysmic variables (CVs) and related systems, combining detailed binary-population synthesis (BPS) models with a grid of 120 bina…
An inverse Compton scattering (ICS) model of pulsar emission: II. frequency behavior of pulse profiles
G. J. Qiao, J. F. Liu, B. Zhang +1
The shapes of pulse profiles, especially their variations with respect to observing frequencies, are very important to understand emission mechanisms of pulsars, while no previous…
Instability of an accretion disk with a magnetically driven wind
Xinwu Cao, H. C. Spruit
We present a linear analysis of the stability of accretion disks in which angular momentum is removed by the magnetic torque exerted by a centrifugally driven wind. The effects of…
The Fundamental Plane of Spiral Galaxies: Search from Observational Data
J. L. Han, Z. G. Deng, Z. L. Zou +2
The fundamental plane of spiral galaxies was searched from observational data, which can be approximately represented in observational parameters by , where ,…