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
31 papers · 2 filters
Testing three derivative methods of stellar population synthesis models
Yu Zhang, Zhanwen Han, Jinzhong Liu +2
The number of methods used to study the properties of galaxies is increased, and testing these methods is very important. Galactic globular clusters (GCs) provide an excellent medi…
A new synthetic library of the Near-Infrared CaII triplet indices. I.Index Definition, Calibration and Relations with stellar atmospheric parameters
Wei Du, A-Li Luo, Yong-Heng Zhao
Adopting the SPECTRUM package, we have synthesized a set of 2,890 Near-InfraRed (NIR) synthetic spectra with a resolution and wavelength sampling similar to the SDSS and the forthc…
Charge Exchange X-ray Emission of Nearby Star-forming Galaxies
Jiren Liu, Q. Daniel Wang, Shude Mao
Properties of hot gas outflows from galaxies are generally measured from associated X-ray line emission assuming that it represents atomic transitions in thermally excited hot gas.…
The stellar metallicity distribution in intermediate latitude fields with BATC and SDSS data
Xiyan Peng, Cuihua Du, Zhenyu Wu
Based on the Beijing-Arizona-Taiwan-Connecticut (BATC) and Sloan Digital Sky Survey (SDSS) photometric data, we adopt SEDs fitting Method to evaluate the metallicity distribution f…
Mass estimators in the Gaia era
J. An, N. W. Evans, A. J. Deason
Forthcoming astrometric missions such as the Gaia satellite will bring to the fore the problem of estimating the enclosed mass from a set of positions, radial velocities and proper…
The Sagittarius Streams in the Southern Galactic Hemisphere
Sergey E. Koposov, V. Belokurov, N. W. Evans +12
The structure of the Sagittarius stream in the Southern Galactic hemisphere is analysed with the Sloan Digital Sky Survey Data Release 8. Parallel to the Sagittarius tidal track, b…
Slicing and dicing the Milky Way disk in SDSS
Martin C. Smith, S. Hannah Whiteoak, N. W. Evans
We use the Stripe 82 proper motion catalogue of Bramich et al. (2008) to study the kinematics of Galactic disk stars in the solar neighborhood. We select samples of dwarf stars wit…
Independent determination of the systematic and random errors of the proper motions in the PPMXL catalog using quasars
Zhen-Yu Wu, Jun Ma, Xu Zhou
Using a sample of 117053 quasars identified in the PPMXL catalog, the systematic errors of the proper motions in the PPMXL catalog are estimated independently as -2.0 and -2.1 mas…
A Sino-German 6cm polarization survey of the Galactic plane VII. Small supernova remnants
X. H. Sun, P. Reich, W. Reich +3
We study the spectral and polarization properties of supernova remnants (SNRs) based on our 6cm survey data. The observations were taken from the Sino-German 6cm polarization surve…
Simulations of the Hyades
A. Ernst, A. Just, P. Berczik +1
Context: Using the recent observational data of Röser et al. we present -body simulations of the Hyades open cluster. Aims: We make an attempt to determine initial conditions of…
Photometric and Spectroscopic Study of Abell 0671
Zhizheng Pan, Qirong Yuan, Xu Kong +3
In this paper we present a photometric and spectroscopic study of the nearby galaxy cluster Abell 0671 (A671) with 15 intermediate-band filters in the Beijing-Arizona-Taiwan-Connec…
New 6cm and 11cm observations of the supernova remnant CTA 1
X. H. Sun, W. Reich, C. Wang +2
(Abridged) We conducted new 6cm and 11cm observations of CTA 1 using the Urumqi 25-m and Effelsberg 100-m telescopes. Data at other wavelengths were included to investigate the spe…
Evolution of growing black holes in axisymmetric galaxy cores
Jose Fiestas, Oliver Porth, Peter Berczik +1
NBody realizations of axisymmetric collisional galaxy cores (e.g. M32, M33, NGC205, Milky Way) with embedded growing black holes are presented. Stars which approach the disruption…
Abundance gradients in the galactic disk
Chenzhou Cui, Yuqin Chen, Gang Zhao +1
The relationship between abundances and orbital parameters for 235 F- and G-type intermediate- and low- mass stars in the Galaxy is analyzed. We found that there are abundance grad…
Application of three-body stability to globular clusters: II. Observed velocity dispersions
Gareth F. Kennedy
The velocity dispersion profile in globular clusters (GCs) is explained here without having to rely on dark matter or a modification of Newtonian dynamics (MOND). The flattening of…
Application of three-body stability to globular clusters: I. The stability radius
Gareth F. Kennedy
The tidal radius is commonly determined analytically by equating the tidal field of the galaxy to the gravitational potential of the cluster. Stars crossing this radius can move fr…
Star formation in self-gravitating disks in active galactic nuclei. I. Metallicity gradients in broad line regions
J. -M. Wang, J. -Q. Ge, C. Hu +6
It has been suggested that the high metallicity generally observed in active galactic nuclei (AGNs) and quasars originates from ongoing star formation in the self-gravitating part…
A highly efficient measure of mass segregation in star clusters
C. Olczak, R. Spurzem, Th. Henning
Investigations of mass segregation are of vital interest for the understanding of the formation and dynamical evolution of stellar systems on a wide range of spatial scales. Our me…
A Sino-German 6\ cm polarization survey of the Galactic plane VI. Discovery of supernova remnants G178.2-4.2 and G25.1-2.3
X. Y. Gao, X. H. Sun, J. L. Han +3
Supernova remnants (SNRs) were often discovered in radio surveys of the Galactic plane. Because of the surface-brightness limit of previous surveys, more faint or confused SNRs awa…
Rapidly Rotating Lenses: Repeating features in the lightcurves of short period binary microlenses
Matthew T. Penny, Eamonn Kerins, Shude Mao
Microlensing is most sensitive to binary lenses with relatively large orbital separations, and as such, typical binary microlensing events show little or no orbital motion during t…
A 100-parsec elliptical and twisted ring of cold and dense molecular clouds revealed by Herschel around the Galactic Center
S. Molinari, J. Bally, A. Noriega-Crespo +38
Thermal images of cold dust in the Central Molecular Zone of the Milky Way, obtained with the far-infrared cameras on-board the Herschel satellite, reveal a 3x10^7 solar masses rin…
Charge Exchange X-ray Emission of M82: Kα triplets of O VII, Ne IX, and Mg XI
Jiren Liu, Shude Mao, Q. Daniel Wang
Starburst galaxies are primary feedback sources of mechanical energy and metals, which are generally measured from associated X-ray emission lines assuming that they are from the t…
The spatial and velocity distributions of hypervelocity stars
Fupeng Zhang, Youjun Lu, Qingjuan Yu
Hypervelocity stars (HVSs) found in the Galactic halo are probably the dynamical products of interactions between (binary) stars and the massive black hole(s) (MBH) in the Galactic…
The RAdial Velocity Experiment (RAVE): Third Data Release
A. Siebert, M. E. K. Williams, A. Siviero +36
We present the third data release of the RAdial Velocity Experiment (RAVE) which is the first milestone of the RAVE project, releasing the full pilot survey. The catalog contains 8…