8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN1.4k papers
- University of Chinese Academy of SciencesCN744 papers
- National Astronomical ObservatoriesCN633 papers
- Shanghai Jiao Tong UniversityCN402 papers
- Peking UniversityCN375 papers
- University of Science and Technology of ChinaCN328 papers
- Centre National de la Recherche ScientifiqueFR287 papers
- Purple Mountain ObservatoryCN260 papers
- Center for Astrophysics Harvard & SmithsonianUS258 papers
- National Astronomical Observatory of JapanJP257 papers
- Nanjing UniversityCN250 papers
- Korea Astronomy and Space Science InstituteKR242 papers
51 papers · 2 filters
How many radio-loud quasars can be detected by the Gamma-Ray Large Area Space Telescope?
Xinwu Cao, J. M. Bai
In the unification scheme, radio quasars and FR II radio galaxies come from the same parent population, but viewed at different angles. Based on the Comptonization models for the g…
Evaluation of Optical Magnitude of Deep Space Spacecraft
Liu Wei, Tang Zheng-Hong, Li Yong-Da
Optical-electric technology can measure the tangential position and velocity of spacecraft. To know the feasibility of the use of optical-electric technology, it is necessary to es…
Environmental Effects on Real-Space and Redshift-Space Galaxy Clustering
Ying Zu, Zheng Zheng, G. T. Zhu +1
Galaxy formation inside dark matter halos, as well as the halo formation itself, can be affected by large-scale environments. Evaluating the imprints of environmental effects on ga…
A Holographic Dark Energy Model from Ricci Scalar Curvature
Changjun Gao, Fengquan Wu, Xuelei Chen +1
Motivated by the holographic principle, it has been suggested that the dark energy density may be inversely proportional to the area of the event horizon of the Universe. However,…
Optical Monitoring of 3C 390.3 from 1995 to 2004 and Possible Periodicities in the Historical Light Curve
Jun Tao, Junhui Fan, Bochen Qian +1
We report V, R, and I band CCD photometry of the radio galaxy 3C 390.3 obtained with the 1.56-m telescope of the Shanghai Astronomical Observatory from March 1995 to August 2004. C…
Open clusters: their kinematics and metellicities
L. Chen, J. L. Hou, J. L. Zhao +1
We review our work on Galactic open clusters in recent years, and introduce our proposed large program for the LOCS (LAMOST Open Cluster Survey). First, based on the most complete…
The clustering of SDSS galaxy groups: mass and color dependence
Yu Wang, Xiaohu Yang, H. J. Mo +3
We use a sample of galaxy groups selected from the SDSS DR 4 with an adaptive halo-based group finder to probe how the clustering strength of groups depends on their masses and col…
Interaction-induced star formation in a complete sample of 10^5 nearby star-forming galaxies
Cheng Li, Guinevere Kauffmann, Timothy Heckman +2
We investigate the clustering properties of a complete sample of 10^5 star-forming galaxies drawn from the SDSS DR4. On scales less than 100 kpc, the amplitude of the correlation f…
Radio loud AGN and the L_X - σrelation of galaxy groups and clusters
Shiyin Shen, Guinevere Kauffmann, Anja von der Linden +2
We use the ROSAT All-Sky Survey to study the X-ray properties of a sample of 625 groups and clusters of galaxies selected from the Sloan Digital Sky Survey. We stack clusters with…
The VSOP 5 GHz Active Galactic Nucleus Survey: V. Imaging Results for the Remaining 140 sources
R. Dodson, E. B. Fomalont, K. Wiik +21
In February 1997, the Japanese radio astronomy satellite HALCA was launched to provide the space-bourne element for the VLBI Space Observatory Programme (VSOP) mission. Approximate…
The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies
Frank C. van den Bosch, Daniel Aquino, Xiaohu Yang +5
In the current paradigm, red sequence galaxies are believed to have formed as blue disk galaxies that subsequently had their star formation quenched. Since red-sequence galaxies ty…
Ongoing Assembly of Massive Galaxies by Major Merging in Large Groups and Clusters from the SDSS
Daniel H. McIntosh, Yicheng Guo, Jen Hertzberg +4
We investigate the incidence of major mergers creating >10e11 Msun galaxies in present-day groups and clusters more massive than 2.5e13 Msun. We identify 38 pairs of massive galaxi…
Broad-line Balmer Decrements in Blue Active Galactic Nuclei
Xiaobo Dong, Tinggui Wang, Jianguo Wang +4
We have investigated the broad-line Balmer decrements (Halpha/Hbeta) for a large, homogeneous sample of Seyfert 1 galaxies and QSOs using spectroscopic data obtained in the Sloan D…
A Measurement of Proper Motions of SiO Maser Sources in the Galactic Center with the VLBA
T. Oyama, M. Miyoshi, S. Deguchi +2
We report on the high-precision astrometric observations of maser sources around the Galactic Center in the SiO J=1--0 v=1 and 2 lines with the VLBA during 2001 -- 2004. With phase…
Galaxy Groups in the SDSS DR4: II. halo occupation statistics
Xiaohu Yang, H. J. Mo, Frank C. van den Bosch
We investigate various halo occupation statistics using a large galaxy group catalogue constructed from the SDSS DR4 with an adaptive halo-based group finder. The conditional lumin…
Probing the Intrinsic Shape and Alignment of Dark Matter Haloes using SDSS Galaxy Groups
Yougang Wang, Xiaohu Yang, H. J. Mo +4
We study the three-dimensional and projected shapes of galaxy groups in the Sloan Digital Sky Survey Data Release 4, and examine the alignment between the orientation of the centra…
Probing the Slope of Cluster Mass Profile with Gravitational Einstein Rings: Application to Abell 1689
H. Tu, M. Limousin, B. Fort +5
The strong lensing modelling of gravitational ``rings'' formed around massive galaxies is sensitive to the amplitude of the external shear and convergence produced by nearby mass c…
Type Ia supernovae as speed sensors at intermediate redshifts
Pengjie Zhang, Xuelei Chen
The application of large scale peculiar velocity (LSPV), as a crucial probe of dark matter, dark energy and gravity, is severely limited by measurement obstacles. We show that fluc…
Observational Tests of Modified Gravity
Bhuvnesh Jain, Pengjie Zhang
Modified gravity theories have richer observational consequences for large-scale structure than conventional dark energy models, in that different observables are not described by…
A Modified Synchrotron Model for Knots in the M87 Jet
Wen-Po Liu, Zhi-Qiang Shen
For explaining the broadband spectral shape of knots in the M87 jet from radio through optical to X-ray, we propose a modified synchrotron model that considers the integrated effec…
Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
Xiaohu Yang, H. J. Mo, Frank C. van den Bosch +3
We use a modified version of the halo-based group finder developed by Yang et al. to select galaxy groups from the Sloan Digital Sky Survey (SDSS DR4). In the first step, a combina…
A fitting formula for the merger timescale of galaxies in hierarchical clustering
C. Y. Jiang, Y. P. Jing, A. Faltenbacher +2
We study galaxy mergers using a high-resolution cosmological hydro/N-body simulation with star formation, and compare the measured merger timescales with theoretical predictions ba…
On the origin of X-ray emission in some FR Is: ADAF or jet?
Qingwen Wu, Feng Yuan, Xinwu Cao
We investigate the X-ray origin in FR Is using the radio, submillimetre, optical, and {\em Chandra} X-ray data of a small sample consisting of eight FR I sources. These sources are…
Mass segregation in very young open clusters -- A case study of NGC 2244 and NGC 6530
L. Chen, R. de Grijs, J. L. Zhao
We derive the proper motions, membership probabilities, and velocity dispersions of stars in the regions of the young (about 2-4 Myr-old) open clusters NGC 2244 (the central cluste…