On the LSP3 estimates of sur ace gravity or LAMOST-Kepler stars with asteroseismic measurements
文献类型：期刊论文
| 作者 | Ren, Juan-Juan1; Liu, Xiao-Wei1,2; Xiang, Mao-Sheng1; Huang, Yang1; Hekker, Saskia3,4; Wang, Chun1; Yuan, Hai-Bo2; Rebassa-Mansergas, Alberto2; Chen, Bing-Qiu1; Sun, Ning-Chen1 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 16期号:3 |
| 关键词 | methods: data analysis fundamental parameters stars: spectroscopic stars: general stars: oscillations |
| 英文摘要 | Asteroseismology allows for deriving precise values of the surface gravity of stars. The accurate asteroseismic determinations now available for the large ntunher of stars in the Kepler fields can he used to check and calibrate surface gravities that are currently being obtained spectroscopically for a huge number of stars targeted by large-scale spectroscopic surveys, such as the on-going Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Galactic survey. The LAMOST spectral surveys have obtained a large number of stellar spectra in the Kepler fields. Stellar atmospheric parameters of those stars have been determined with the LAMOST Stellar Parameter Pipeline at Peking University (LSP3), by template matching with the MILES empirical spectral library. In the current work, we compare surface gravities yielded by LSP3 with those of two asteroseismic samples-the largest Kepler asteroseismic sample and the most accurate Kepler asteroseismic sample. We find that LSP3 surface gravities are in good agreement with asteroseismic values of Hekker et al., with a dispersion of similar to 0.2 dex. Except for a few cases, asteroseismic surface gravities of Huber et al. and LSP3 spectroscopic values agree for a wide range of surface gravities. However, some patterns in the differences can be identified upon close inspection. Potential ways to further improve the LSP3 spectroscopic estimation of stellar atmospheric parameters in the near future are briefly discussed. The effects of effective temperature and metallicity on asteroseismic determinations of surface gravities for giant stars are also discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000371883400009 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5403]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 3.Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany 4.Aarhus Univ, Dept Phys & Astron, Stellar Astrophys Ctr, Ny Munkegade 120, DK-8000 Aarhus C, Denmark 5.Chinese Acad Sci, Natl Astron Observ, Key Lab Opt Astron, Beijing 100012, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Nanjing Inst Astron Opt & Technol, Nanjing 210042, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Juan-Juan,Liu, Xiao-Wei,Xiang, Mao-Sheng,et al. On the LSP3 estimates of sur ace gravity or LAMOST-Kepler stars with asteroseismic measurements[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(3). |
| APA | Ren, Juan-Juan.,Liu, Xiao-Wei.,Xiang, Mao-Sheng.,Huang, Yang.,Hekker, Saskia.,...&Wang, Yue-Fei.(2016).On the LSP3 estimates of sur ace gravity or LAMOST-Kepler stars with asteroseismic measurements.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(3). |
| MLA | Ren, Juan-Juan,et al."On the LSP3 estimates of sur ace gravity or LAMOST-Kepler stars with asteroseismic measurements".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.3(2016). |
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来源：国家天文台
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