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Joint fit of Warm Absorbers in COS and HETG spectra of NGC 3783
Fu, Xiao-Dan1; Zhang, Shui-Nai1; Sun, Wei1; Niu, Shu2; Ji, Li1
2017-09-01
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume17Issue:9Pages:10
Corresponding AuthorZhang, Shui-Nai(snzhang@pmo.ac.cn)
AbstractWarm 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.
Keywordgalaxies: individual (NGC 3783) quasars: absorption lines ultraviolet: galaxies X-ray: galaxies
DOI10.1088/1674-4527/17/9/95
WOS KeywordX-RAY-ABSORPTION ; NUCLEAR ENVIRONMENT ; IONIZED-GAS ; GALAXY NGC-3783 ; XMM-NEWTON ; ULTRAVIOLET ; VARIABILITY ; MODEL ; MASS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000412778300007
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22821
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, Shui-Nai
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Fu, Xiao-Dan,Zhang, Shui-Nai,Sun, Wei,et al. Joint fit of Warm Absorbers in COS and HETG spectra of NGC 3783[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(9):10.
APA Fu, Xiao-Dan,Zhang, Shui-Nai,Sun, Wei,Niu, Shu,&Ji, Li.(2017).Joint fit of Warm Absorbers in COS and HETG spectra of NGC 3783.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(9),10.
MLA Fu, Xiao-Dan,et al."Joint fit of Warm Absorbers in COS and HETG spectra of NGC 3783".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.9(2017):10.
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