YNAO OpenIR  > 大样本恒星演化研究组
A new stellar spectrum interpolation algorithm and its application to Yunnan-III evolutionary population synthesis models
Cheng LT(程连涛)1,2,3,4; Zhang FH(张奉辉)1,2,3; Kang XY(康晓宇)1,2,3; Wang L(王浪)1,2,3,4; Cheng LT(程连涛), Email: chengliantao@ynao.ac.cn; Zhang FH(张奉辉), Email: zhangfh@ynao.ac.cn
2018-05-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
卷号476期号:3页码:4071-4084
产权排序第1完成单位
摘要In evolutionary population synthesis (EPS) models, we need to convert stellar evolutionary parameters into spectra via interpolation in a stellar spectral library. For theoretical stellar spectral libraries, the spectrum grid is homogeneous on the effective-temperature and gravity plane for a given metallicity. It is relatively easy to derive stellar spectra. For empirical stellar spectral libraries, stellar parameters are irregularly distributed and the interpolation algorithm is relatively complicated. In those EPS models that use empirical stellar spectral libraries, different algorithms are used and the codes are often not released. Moreover, these algorithms are often complicated. In this work, based on a radial basis function (RBF) network, we present a new spectrum interpolation algorithm and its code. Compared with the other interpolation algorithms that are used in EPS models, it can be easily understood and is highly efficient in terms of computation. The code is written in MATLAB scripts and can be used on any computer system. Using it, we can obtain the interpolated spectra from a library or a combination of libraries. We apply this algorithm to several stellar spectral libraries (such as MILES, ELODIE-3.1 and STELIB-3.2) and give the integrated spectral energy distributions (ISEDs) of stellar populations (with ages from 1 Myr to 14 Gyr) by combining them with Yunnan-III isochrones. Our results show that the differences caused by the adoption of different EPS model components are less than 0.2 dex. All data about the stellar population ISEDs in this work and the RBF spectrum interpolation code can be obtained by request from the first author or downloaded from http://www1.ynao.ac.cn/similar to zhangfh.
关键词Methods: Numerical Stars: Fundamental Parameters Globular Clusters: General
学科领域天文学
DOI10.1093/mnras/sty373
项目资助者Chinese Natural Science Foundation(11573062, 11373063, 11273053, 11390374, 1152100017, 11403092) ; YIPACAS Foundation(2012048) ; Yunnan Foundation(2011CI053)
URL查看原文
收录类别SCI
语种英语
文章类型Article
WOS研究方向Astronomy & Astrophysics
WOS标题词Science & Technology ; Physical Sciences
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000430944100081
关键词[WOS]NEWTON-TELESCOPE LIBRARY ; INITIAL MASS FUNCTION ; ATMOSPHERIC PARAMETERS ; LUMINOSITY FUNCTION ; EMPIRICAL SPECTRA ; RESOLUTION ; METALLICITY ; CALIBRATION ; GALAXIES ; STARS
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12364
专题大样本恒星演化研究组
中国科学院天体结构与演化重点实验室
通讯作者Cheng LT(程连涛), Email: chengliantao@ynao.ac.cn; Zhang FH(张奉辉), Email: zhangfh@ynao.ac.cn
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
4.University of Chinese Academy of Sciences, Beijing 100049, China
推荐引用方式
GB/T 7714
Cheng LT,Zhang FH,Kang XY,et al. A new stellar spectrum interpolation algorithm and its application to Yunnan-III evolutionary population synthesis models[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,476(3):4071-4084.
APA Cheng LT,Zhang FH,Kang XY,Wang L,Cheng LT,&Zhang FH.(2018).A new stellar spectrum interpolation algorithm and its application to Yunnan-III evolutionary population synthesis models.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,476(3),4071-4084.
MLA Cheng LT,et al."A new stellar spectrum interpolation algorithm and its application to Yunnan-III evolutionary population synthesis models".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 476.3(2018):4071-4084.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A new stellar spectr(13879KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Cheng LT(程连涛)]的文章
[Zhang FH(张奉辉)]的文章
[Kang XY(康晓宇)]的文章
百度学术
百度学术中相似的文章
[Cheng LT(程连涛)]的文章
[Zhang FH(张奉辉)]的文章
[Kang XY(康晓宇)]的文章
必应学术
必应学术中相似的文章
[Cheng LT(程连涛)]的文章
[Zhang FH(张奉辉)]的文章
[Kang XY(康晓宇)]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。