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
925 papers · 1 filter
gravity theories in the Palatini Formalism constrained from strong lensing
Xin-Juan Yang, Da-Ming Chen
gravity, capable of driving the late-time acceleration of the universe, is emerging as a promising alternative to dark energy. Various gravity models have been intens…
Near-IR spectroscopic ages of massive star clusters in M82
A. Lançon, J. S. Gallagher, M. Mouhcine +3
Like other starburst galaxies, M82 hosts compact, massive young star clusters that are interesting both in their own right and as benchmarks for population synthesis models. Can sp…
GMIMS: The Global Magneto-Ionic Medium Survey
M. Wolleben, T. L. Landecker, E. Carretti +10
The Global Magneto-Ionic Medium Survey (GMIMS) is a project to map the diffuse polarized emission over the entire sky, Northern and Southern hemispheres, from 300 MHz to 1.8 GHz. W…
Discovery of four gravitational lensing systems by clusters in the SDSS DR6
Zhong-Lue Wen, Jin-Lin Han, Xiang-Yang Xu +4
We report the discovery of 4 strong gravitational lensing systems by visual inspections of the Sloan Digital Sky Survey images of galaxy clusters in Data Release 6 (SDSS DR6). Two…
A New Diagnostic Method for Assessment of Stellar Stratification in Star Clusters
Dimitrios A. Gouliermis, Richard de Grijs, Yu Xin
We propose a new method for the characterization of stellar stratification in stellar systems. The method uses the mean-square radius (also called the Spitzer radius) of the system…
STAGES: the Space Telescope A901/2 Galaxy Evolution Survey
M. E. Gray, Christian Wolf, Marco Barden +26
We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution ac…
The STAGES view of red spirals and dusty red galaxies: Mass-dependent quenching of star-formation in cluster infall
Christian Wolf, Alfonso Aragon-Salamanca, Michael Balogh +22
We investigate the properties of optically passive spirals and dusty red galaxies in the A901/2 cluster complex at redshift ~0.17 using restframe near-UV-optical SEDs, 24 micron IR…
Accretion Properties of A Sample of Hard X-ray (<60keV) Selected Seyfert 1 Galaxies
J. Wang, Y. F. Mao, J. Y. Wei
We examine the accretion properties in a sample of 42 hard (3-60keV) X-ray selected nearby broad-line AGNs. The energy range in the sample is harder than that usually used in the s…
On type Ia supernovae and the formation of single low-mass white dwarfs
Stephen Justham, Christian Wolf, Philipp Podsiadlowski +1
There is still considerable debate over the progenitors of type Ia supernovae (SNe Ia). Likewise, it is not agreed how single white dwarfs with masses less than ~0.5 Msun can be fo…
A spectroscopic study of the blue stragglers in M67
G. Q. Liu, L. Deng, M. Chavez +3
Based on spectrophotometric observations from the Guillermo Haro Observatory (Cananea, Mexico), a study of the spectral properties of the complete sample of 24 blue straggler stars…
Abundance Analysis of Barium Stars
G. Q. Liu, Y. C. Liang, L. Deng
We obtain the chemical abundances of six barium stars and two CH subgiant stars based on the high signal-to-noise ratio and high resolution Echelle spectra. The neutron capture pro…
Chandra Acis Survey of X-Ray Point Sources in 383 Nearby Galaxies I. the Source Catalog
Jifeng Liu
The Chandra data archive after eight years' accumulation is a treasure for various studies, and in this paper we exploit this valuable resource to study the X-ray point source popu…
2006 Whole Earth Telescope Observations of GD358: A New Look at the Prototype DBV
J. L. Provencal, M. H. Montgomery, A. Kanaan +53
We report on the analysis of 436.1 hrs of nearly continuous high-speed photometry on the pulsating DB white dwarf GD358 acquired with the Whole Earth Telescope (WET) during the 200…
The WEBT Campaign on the Intermediate BL Lac Object 3C66A in 2007-2008
M. Boettcher, K. Fultz
Prompted by a high optical state in September 2007, the Whole Earth Blazar Telescope (WEBT) consortium organized an intensive optical, near-IR (JHK) and radio observing campaign on…
Discovery of molecular shells associated with supernova remnants. (II) Kesteven 75
Yang Su, Yang Chen, Ji Yang +4
The young composite supernova remnant (SNR) Kesteven 75, with a pulsar wind nebula at its center, has an unusual morphology with a bright southern half-shell structure in multiwave…
A Magnetohydrodynamic Model for the Formation of Episodic Jets
Feng Yuan, Jun Lin, Kinwah Wu +1
Episodic ejection of plasma blobs have been observed in many black hole systems. While steady, continuous jets are believed to be associated with large-scale open magnetic fields,…
The pulsating hot subdwarf Balloon 090100001: results of the 2005 multisite campaign
A. Baran, R. Oreiro, A. Pigulski +28
We present the results of a multisite photometric campaign on the pulsating sdB star Balloon 090100001. The star is one of the two known hybrid hot subdwarfs with both long- and sh…
Time-series Spectroscopy and Photometry of the Pulsating Subdwarf B Star PG 1219+534 (KY UMa)
M. D. Reed, J. R. Eggen, S. L. Harms +7
We present observations and analysis of time-series spectroscopy and photometry of the pulsating subdwarf B star PG 1219+534 (KY UMa). Subdwarf B stars are blue horizontal branch s…
Beryllium abundances in metal-poor stars
K. F. Tan, J. R. Shi, G. Zhao
We have determined beryllium abundances for 25 metal-poor stars based on the high resolution and high signal-to-noise ratio spectra from the VLT/UVES database. Our results confirm…
Morphology Classification and Photometric Redshift Measurement of Galaxies
Yanxia Zhang, Lili Li, Yongheng Zhao
Based on the Sloan Digital Sky Survey Data Release 5 Galaxy Sample, we explore photometric morphology classification and redshift estimation of galaxies using photometric data and…
What do dynamical cluster masses really tell us about dynamics?
Richard de Grijs, M. B. N. Kouwenhoven, Simon P. Goodwin
The diagnostic age versus mass-to-light ratio diagram is often used in attempts to constrain the shape of the stellar initial mass function, and the stability and the potential lon…
Images IV: Strong evolution of the oxygen abundance in gaseous phases of intermediate mass galaxies since z=0.8
M. Rodrigues, F. Hammer, H. Flores +22
Intermediate mass galaxies (logM(Msun)>10) at z~0.6 are the likeliest progenitors of the present-day numerous population of spirals. There is growing evidence that they have evolve…
Mergers of luminous early-type galaxies in the local universe and gravitational wave background
Z. L. Wen, F. S. Liu, J. L. Han
Supermassive black hole (SMBH) coalescence in galaxy mergers is believed to be one of the primary sources of very low frequency gravitational waves (GWs). Significant contribution…
Alignments of Group Galaxies with Neighboring Groups
Yougang Wang, Changbom Park, Xiaohu Yang +2
Using a sample of galaxy groups found in the Sloan Digital Sky Survey Data Release 4, we measure the following four types of alignment signals: (1) the alignment between the distri…