WAVELENGTH MEASUREMENTS OF K TRANSITIONS OF OXYGEN, NEON, AND MAGNESIUM WITH X-RAY ABSORPTION LINES
Liao, JY; Zhang SN(张双南); Zhang, SN; Yao, YS
刊名ASTROPHYSICAL JOURNAL
2013
卷号774期号:2页码:116
关键词ISM: atoms methods: data analysis X-rays: binaries X-rays: ISM
学科分类Astronomy & Astrophysics
DOI10.1088/0004-637X/774/2/116
英文摘要Accurate atomic transition data are important in many astronomical research areas, especially for studies of line spectroscopy. Whereas transition data of He-like and H-like ions (i.e., ions in high-charge states) have been accurately calculated, the corresponding data of K transitions of neutral or low-ionized metal elements are still very uncertain. Spectroscopy of absorption lines produced in the interstellar medium (ISM) has been proven to be an effective way to measure the central wavelengths of these atomic transitions. In this work, we analyze 36 Chandra High Energy Transmission Grating observations to search for and measure the ISM absorption lines along sight lines to 11 low-mass X-ray binaries. We correct the Galactic rotation velocity to the rest frame for every observation and then use two different methods to merge all the corrected spectra to a co-added spectrum. However, the co-added spectra obtained by this method exhibit biases, toward to either observations with high counts or lines with high signal-to-noise ratios. We do a Bayesian analysis of several significantly detected lines to obtain the systematic uncertainty and the bias correction for other lines. Compared to previous studies, our results improve the wavelength accuracy by a factor of two to five and significantly reduce the systematic uncertainties and biases. Several weak transitions (e. g., 1s-2p of Mg IV and Mg V; 1s-3p of Mg III and Mg V) are also detected for the first time, albeit with low significance; future observations with improved accuracy are required to confirm these detections.
收录类别SCI
WOS记录号WOS:000323888900025
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224423
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
推荐引用方式
GB/T 7714
Liao, JY,Zhang SN,Zhang, SN,et al. WAVELENGTH MEASUREMENTS OF K TRANSITIONS OF OXYGEN, NEON, AND MAGNESIUM WITH X-RAY ABSORPTION LINES[J]. ASTROPHYSICAL JOURNAL,2013,774(2):116.
APA Liao, JY,张双南,Zhang, SN,&Yao, YS.(2013).WAVELENGTH MEASUREMENTS OF K TRANSITIONS OF OXYGEN, NEON, AND MAGNESIUM WITH X-RAY ABSORPTION LINES.ASTROPHYSICAL JOURNAL,774(2),116.
MLA Liao, JY,et al."WAVELENGTH MEASUREMENTS OF K TRANSITIONS OF OXYGEN, NEON, AND MAGNESIUM WITH X-RAY ABSORPTION LINES".ASTROPHYSICAL JOURNAL 774.2(2013):116.
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
8286.pdf(1562KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 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
[Liao, JY]的文章
[张双南]的文章
[Zhang, SN]的文章
百度学术
百度学术中相似的文章
[Liao, JY]的文章
[张双南]的文章
[Zhang, SN]的文章
必应学术
必应学术中相似的文章
[Liao, JY]的文章
[张双南]的文章
[Zhang, SN]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 8286.pdf
格式: Adobe PDF
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。