Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Chinese Academy of SciencesCN1.2k papers
- University of Chinese Academy of SciencesCN691 papers
- National Astronomical ObservatoriesCN630 papers
- Peking UniversityCN510 papers
- Tsinghua UniversityCN350 papers
- Institute of High Energy PhysicsCN248 papers
- Institute of Theoretical PhysicsCN230 papers
- Centre National de la Recherche ScientifiqueFR209 papers
- University of Science and Technology of ChinaCN175 papers
- Nanjing UniversityCN165 papers
- Beijing Computational Science Research CenterCN148 papers
- Kavli Institute for Theoretical SciencesCN142 papers
22 papers · 2 filters
On the Silicate Crystallinities of Oxygen-Rich Evolved Stars and Their Mass Loss Rates
Jiaming Liu, Biwei Jiang, Aigen Li +1
For decades ever since the early detection in the 1990s of the emission spectral features of crystalline silicates in oxygen-rich evolved stars, there is a long-standing debate on…
Ages of 70 dwarfs of three populations in the solar neighborhood: considering O and C abundances in stellar models
Z. S. Ge, S. L. Bi, Y. Q. Chen +5
Oxygen and carbon are important elements in stellar populations. Their behavior refers to the formation history of the stellar populations. C and O abundances would also obviously…
Asteroseismic analysis of two alpha-enhanced stars KIC 7976303 and KIC 8694723
Z. S. Ge, S. L. Bi, T. D. Li +5
We intent to use stellar models with and without alpha-enhancement, as well as asteroseismic analysis, to study two alpha-enhanced stars, KIC 7976303 and KIC 8694723. For the alpha…
LAMOST Observations of Flaring M Dwarfs in the Kepler Field
H. -Y. Chang, Y. -H. Song, A. -L. Luo +7
A sample of the LAMOST spectra of the early type M0-M3 dwarfs is compared with the Kepler observations. It is found that M dwarfs with strong chromospheric emission in have l…
The core-degenerate scenario for the progenitors of type Ia supernovae
Bo Wang, Weihong Zhou, Zhaoyu Zuo +5
The origin of the progenitors of type Ia supernovae (SNe Ia) is still uncertain. The core-degenerate (CD) scenario has been proposed as an alternative way for the production of SNe…
Estimating stellar atmospheric parameters, absolute magnitudes and elemental abundances from the LAMOST spectra with Kernel-based Principal Component Analysis
Maosheng Xiang, Xiaowei Liu, Jianrong Shi +16
Accurate determination of stellar atmospheric parameters and elemental abundances is crucial for Galactic archeology via large-scale spectroscopic surveys. In this paper, we estima…
Revision of Stellar Intrinsic Colors in the Infrared by the Spectroscopic Surveys
Mingjie Jian, Shuang Gao, He Zhao +1
Intrinsic colors of normal stars are derived in the popularly used infrared bands involving the 2MASS/JHKs, WISE, Spitzer/IRAC and AKARI/S9W filters. Based on three spectroscopic s…
Stellar Parameters of Main Sequence Turn-off Star Candidates Observed with the LAMOST and Kepler
Yaqian Wu, Maosheng Xiang, Xianfei Zhang +10
Main sequence turn-off (MSTO) stars have advantages as indicators of Galactic evolution since their ages could be robustly estimated from atmospheric parameters. Hundreds of thousa…
Footprints of the weak s-process in the carbon-enhanced metal-poor star ET0097
Guochao Yang, Hongjie Li, Nian Liu +3
Historically, the weak s-process contribution to metal-poor stars is thought to be extremely small, due to the effect of the secondary-like nature of the neutron source 22Ne(a;n)25…
Asteroseismology of 1523 misclassified red giants using data
Jie Yu, Daniel Huber, Timothy R. Bedding +5
We analysed solar-like oscillations in 1523 red giants which have previously been misclassified as subgiants, with predicted values (based on the Ke…
Estimate the radius of the convective core of main-sequence stars from observed oscillation frequencies
Wuming Yang
The determination of the size of the convective core of main-sequence stars is usually dependent on the construction of models of stars. Here we introduce a method to estimate the…
LAMOST observations in the Kepler field. Analysis of the stellar parameters measured with the LASP based on the low-resolution spectra
Anbing Ren, Jianning Fu, Peter De Cat +12
All of the 14 subfields of the Kepler field have been observed at least once with the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, Xinglong Observatory, China…
Activity indicators and stellar parameters of the Kepler targets. An application of the ROTFIT pipeline to LAMOST-Kepler stellar spectra
A. Frasca, J. Molenda-Zakowicz, P. De Cat +7
The LAMOST-Kepler survey, whose spectra are analyzed in the present paper, is the first large spectroscopic project aimed at characterizing these sources. Our work is focused at se…
ROTSE1 J164341.65+251748.1: a new W UMa-type eclipsing binary
R. Michel, J. Echevarria, T. Cang +2
ROTSE1 J164341.65+251748.1 was photometrically observed in the V band during three epochs with the 0.84-m telescope of the San Pedro Mártir Observatory in Mexico. Based on addition…
The LAMOST spectroscopic survey of star clusters in M31. II. Metallicities, ages and masses
Chen Bingqiu, Liu Xiaowei, Xiang Maosheng +14
We select from Paper I a sample of 306 massive star clusters observed with the Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) in the vicinity fields of M31 and…
On the Relation between the Mysterious 21 Micrometer Emission Feature of Post-Asymptotic Giant Branch Stars and Their Mass Loss Rates
Ajay Mishra, Aigen Li, B. W. Jiang
Over two decades ago, a prominent, mysterious emission band peaking at ~20.1 micrometer was serendipitously detected in four preplanetary nebulae (PPNe; also known as "protoplaneta…
FGK 22 m Excess Stars in LAMOST DR2 Stellar Catalog
Chao-Jian Wu, Hong Wu, Kang Liu +8
Since the release of LAMOST (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope) catalog, we have the opportunity to use the LAMOST DR2 stellar catalog and \emph{WISE Al…
Solar models with new low-metal abundances
Wuming Yang
In the last decade, the photospheric abundances of the Sun had been revised several times by many observers. The standard solar models (SSM) constructed with the new low-metal abun…
Parameterizing Stellar Spectra Using Deep Neural Networks
Xiangru Li, Ruyang Pan
This work investigates the spectrum parameterization problem using deep neural networks (DNNs). The proposed scheme consists of the following procedures: first, the configuration o…
Chemical abundance analysis of 19 barium stars
G. C. Yang, Y. C. Liang, M. Spite +10
We aim at deriving accurate atmospheric parameters and chemical abundances of 19 barium (Ba) stars, including both strong and mild Ba stars, based on the high signal-to-noise ratio…
White-Light Flares on Close Binaries Observed with Kepler
Qing Gao, Yu Xin, Ji-Feng Liu +2
Based on Kepler data, we present the results of a search for white-light flares on 1049 close binaries. We identify 234 flare binaries, on which 6818 flares are detected. We compar…
Light Curve Solutions of an Eclipsing Binary OGLE-GD-ECL-04451 with a Dramatic Change in Amplitude
Li Gang, Zhang yanping, Fu jianning
We present light curve solutions of the W UMa-type eclipsing binary OGLE-GD-ECL-04451, observed by both the \emph{Optical Gravitational Lensing Ex-periment} (\emph{OGLE}) program i…