中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 中国科学院紫金山天文台研究生部  > 学生文章
题名: Joint fit of Warm Absorbers in COS and HETG spectra of NGC 3783
作者: Fu, Xiao-Dan; Zhang, Shui-Nai; Sun, Wei; Niu, Shu; Ji, Li
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2017
卷号: 17, 期号:9, 页码:-
英文摘要: Warm Absorbers (WAs), as an important form of AGN outflows, show absorption in both the UV and X-ray bands. Using XSTAR generated photoionization models, for the first time we present a joint fit to the simultaneous observations of HST/COS and Chandra/HETG on NGC 3783. A total of five WAs explain well all absorption features from the AGN outflows, which are spread over a wide range of parameters: ionization parameter log xi from 0.6 to 3.8, column density log N-H from 19.5 to 22.3 cm(-2), velocity v from 380 to 1060 km s(-1), and covering factor from 0.33 to 0.75. Not all the five WAs are consistent in pressure. Two of them are likely different parts of the same absorbing gas, and two of the other WAs may be smaller discrete clouds that are blown out from the inner region of the torus at different periods. The five WAs suggest a total mass outflowing rate within the range of 0.22-4.1 solar mass per year.
语种: 英语
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/17561
Appears in Collections:中国科学院紫金山天文台研究生部_学生文章

Files in This Item:
File Name/ File Size Content Type Version Access License
2017208.pdf(2635KB)期刊论文作者接受稿限制开放 联系获取全文
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Fu, Xiao-Dan]'s Articles
[Zhang, Shui-Nai]'s Articles
[Sun, Wei]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Fu, Xiao-Dan]‘s Articles
[Zhang, Shui-Nai]‘s Articles
[Sun, Wei]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院紫金山天文台 - Feedback
Powered by CSpace