A library of Lick Observatory Image Dissector Scanner indices for binary stellar populations
文献类型：期刊论文
| 作者 | Zhang FH(张奉辉) ; Li LF(李立芳)
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2006-08-11 |
| 卷号 | 370期号:3页码:1181-1184 |
| ISSN号 | 0035-8711 |
| 关键词 | binaries : general stars : evolution galaxies : clusters : general |
| 通讯作者 | Zhang, FH (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Yunnan Province, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | Using evolutionary population synthesis, we present 13 refined absorption-line indices defined by the Lick Observatory Image Dissector Scanner (Lick/IDS) system for an extensive set of instantaneous-burst binary stellar populations (BSPs) at high resolution (similar to 0.3 angstrom), and 38 indices at intermediate resolution (3 angstrom). The ages of the populations are at an interval of 1 Gyr in the range 1-15 Gyr, and the metallicities are in the range 0.004-0.03. These indices are obtained by two methods: (i) using the empirical fitting functions (FFs method); (ii) measured directly from the synthetic spectra (DC method). Together with our previous paper, a data base of Lick/IDS spectral absorption-line indices for BSPs at high and intermediate resolutions is provided. This set of indices includes 21 indices of Worthey et al., four Balmer indices defined by Worthey & Ottaviani, and 13 indices with the new passband definitions of Trager et al. The full set of synthetic indices and the integrated pseudo-continuum are listed in the Appendices, which are only available online at http://www.blackwell-synergy.com/ or from our website (http://www.ast9.com/), or on request from the first author. Moreover, the full set of the integrated spectral energy distributions can be obtained from our website. We compare the synthetic Lick/IDS indices obtained by the FFs method and those by the DC method for BSPs with various metallicities, and find that the discrepancies are significant: Ca4455 (index 6), Fe4668 (8), Mg-b (13), Fe5709 (17), NaD (19), TiO1 (20) and TiO2 (21, except for Z = 0.02) in the W94 system, Ca4455(T) (6(T)), C(2)4668(T) (8(T)), NaDT (19(T)), TiO1T (20(T)) and TiO2T (21(T), except for Z = 0.02) in the T98 system obtained by the DC method are less (bluer) than the corresponding ones obtained by the FFs method for all metallicities. Ca4227 (index 3), Fe5782 (18), Ca4227(T) (3(T)) and Fe5782(T) (18(T)) are greater at Z = 0.03 and become bluer at Z = 0.004; the Fe5709(T) (17(T)) index is less at Z = 0.03 and becomes redder at Z = 0.004 than the corresponding ones obtained by the FFs method. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ABSORPTION-FEATURE INDEXES ; HIGH-SPECTRAL-RESOLUTION ; STARS |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/370/3/1181 |
| 语种 | 英语 |
| WOS记录号 | WOS:000239336400007 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4425]  |
| 专题 | 云南天文台_大样本恒星演化研究组 |
| 作者单位 | National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming, Yunnan Province 650011, China |
| 推荐引用方式 GB/T 7714 | Zhang FH,Li LF. A library of Lick Observatory Image Dissector Scanner indices for binary stellar populations[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,370(3):1181-1184. |
| APA | Zhang FH,&Li LF.(2006).A library of Lick Observatory Image Dissector Scanner indices for binary stellar populations.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,370(3),1181-1184. |
| MLA | Zhang FH,et al."A library of Lick Observatory Image Dissector Scanner indices for binary stellar populations".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 370.3(2006):1181-1184. |
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来源：云南天文台
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