862 citations · 5.9k across the 141 of their papers we have counts for
14 papers · 1 filter
A large sample of low surface brightness disk galaxies from the SDSS. I: The sample and the stellar populations
G. H. Zhong, Y. C. Liang, F. S. Liu +5
We present the properties of a large sample (12,282) of nearly face-on low surface brightness (LSB) disk galaxies selected from the main galaxy sample of SDSS-DR4. These properties…
The binary fraction of the young cluster NGC 1818 in the Large Magellanic Cloud
Yi Hu, Licai Deng, Richard deGrijs +2
We use high-resolution {\sl Hubble Space Telescope} imaging observations of the young ( Myr-old) star cluster NGC 1818 in the Large Magellanic Cloud to derive an estima…
Simple Stellar Population Models as probed by the Large Magellanic Cloud Star Cluster ESO 121-SC03
Y. Xin, L. Deng, R. de Grijs +2
The presence of blue straggler stars (BSs) in star clusters has proven a challenge to conventional simple stellar population (SSP) models. Conventional SSP models are based on the…
How to define the boundaries of a convective zone and how extended is overshooting?
L. Deng, D. R. Xiong
Under nonlocal convection theory, convection extends without limit therefore no apparent boundary can be defined clearly as in the local theory. From the requirement of a similar s…
The structure of the Galactic halo: SDSS versus SuperCOSMOS
Y. Xu, L. C. Deng, J. Y. Hu
The halo structure at high Galactic latitudes near both the north and south poles is studied using SDSS and SuperCOSMOS data. For the south cap halo, the archive of the SuperCOSMOS…
Non-adiabatic Oscillations of Red Giants
D. R. Xiong, L. Deng
Using our non-local time-dependent theory of convection, the linear non-adiabatic oscillations of 10 evolutionary model series with masses of 1--3M are calculated. The resu…
Empirical strong-line oxygen abundance calibrations from galaxies with electron temperature measurements
S. Y. Yin, Y. C. Liang, F. Hammer +4
We determine the gas-phase oxygen abundance for a sample of 695 galaxies and H II regions with reliable detections of [O III]4363, using the temperature-sensitive Te method. Our ai…
Blue Straggler Stars in Galactic Open Clusters and the Simple Stellar Population Model
Y. Xin, L. Deng, Z. Han
Blue straggler stars present as secure members in the Galactic open clusters form a major challenge to the conventional picture of evolutionary population synthesis based on the st…
The oxygen abundance calibrations and N/O abundance ratios of ~40,000 SDSS star-forming galaxies
Y. C. Liang, S. Y. Yin, F. Hammer +3
Using a large sample of 38,478 star-forming galaxies selected from the Second Data Release of the Sloan Digital Sky Survey database (SDSS-DR2), we derive analytical calibrations fo…
The asymmetric structure of the Galactic halo
Y. Xu, L. C. Deng, J. Y. Hu
Using the stellar photometry catalogue based on the latest data release (DR4) of the Sloan Digital Sky Survey (SDSS), a study of the Galactic structure using star counts is carried…
The Luminosity and Metallicity Relation of distant luminous infrared galaxies
Y. C. Liang, F. Hammer, H. Flores +4
Oxygen abundances [12+log(O/H)] in the interstellar medium of a large sample of distant (z>0.4) luminous infrared galaxies (LIRGs) were estimated from their extinction corrected em…
Deep Intermediate-Band Surface Photometry of NGC 5907
BATC Collaboration, Z. Y. Zheng, Z. H. Shang +3
We obtained very deep exposures of NGC 5907 with a Schmidt telescope, large-format CCD, and intermediate-band filters centered at 6660A and 8020A. These two filters, part of a 15-f…
Ring structure and warp of NGC5907 -- Interaction with dwarf galaxies
Zhaohui Shang, Zhongyuan Zheng, Elias Brinks +22
The edge-on, nearby spiral galaxy NGC5907 has long been used as the prototype of a ``non-interacting'' warped galaxy. We report here the discovery of two interactions with companio…
Wide Field Surveys of Herbig-Haro Objects
Jun Yan, Hongchi Wang, Min Wang +3
We report our new results from wide-field surveys of Herbig-Haro (HH) objects in the nearby star forming regions. The surveys covered approximately 56 degree in Perseus, Taurus, Or…