PMO OpenIR
PROPERTIES OF INTERSTELLAR MEDIUM IN INFRARED-BRIGHT QSOs PROBED BY [O i] 63 μm AND [C ii] 158 μm EMISSION LINES*?Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.
Zhao(赵应和),Yinghe1,2,3; Yan,Lin1; Tsai,Chao-Wei4
2016-06-23
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume824Issue:2
AbstractABSTRACT We present a study of the interstellar medium (ISM) in the host galaxies of nine QSOs at 0.1 < z < 0.2 with black hole masses of to based on the far-IR spectroscopy taken with Herschel Space Observatory. We detect the [O i] 63 μm ([C ii] 158 μm) emission in 6 (8) out of 8 (9) sources. Our QSO sample has far-infrared luminosities ( ) ~ several times . The observed line-to- ratios ( / and / ) are in the ranges of 2.6 × 10?4 to 10?2 and 2.8 × 10?4 to 2 × 10?3, respectively (including upper limits). These ratios are comparable to the values found in local ULIRGs, but higher than the average value published so far for IR-bright QSOs. One target, W0752+19, shows an additional broad velocity component (~720 km s?1) and exceptionally strong [O i] 63 μm emission with / of 10?2, an order of magnitude higher than the average value found among local (U)LIRGs. Combining with the analyses of the Sloan Digital Sky Survey optical spectra, we conclude that the [O i] 63 μm emission in these QSOs is unlikely excited by shocks. We infer that the broad [O i] 63 μm emission in W0752+19 could arise from the warm and dense ISM in the narrow-line region of the central active galactic nucleus. Another possible explanation is the existence of a dense gas outflow with cm?3, where the corresponding broad [C ii] emission is suppressed. Based on the far-IR [O i] and [C ii] line ratios, we estimate constraints on the ISM density and UV radiation field intensity of cm?3 and , respectively. These values are consistent with those found in local Seyfert 1 ULIRGs. In contrast, the gas with broad velocity width in W0752+19 has cm?3 and .
Keywordgalaxies: active galaxies: ISM galaxies: starburst infrared: galaxies quasars: general
DOI10.3847/0004-637X/824/2/146
Language英语
WOS IDIOP:0004-637X-824-2-146
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23737
Collection中国科学院紫金山天文台
Affiliation1.Infrared Processing and Analysis Center, California Institute of Technology 100-22, Pasadena, CA 91125, USA; zhaoyinghe@gmail.com
2.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, China
3.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, China
4.Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, USA
Recommended Citation
GB/T 7714
Zhao,Yan,Lin,Tsai,Chao-Wei. PROPERTIES OF INTERSTELLAR MEDIUM IN INFRARED-BRIGHT QSOs PROBED BY [O i] 63 μm AND [C ii] 158 μm EMISSION LINES*?Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.[J]. The Astrophysical Journal,2016,824(2).
APA Zhao,Yan,Lin,&Tsai,Chao-Wei.(2016).PROPERTIES OF INTERSTELLAR MEDIUM IN INFRARED-BRIGHT QSOs PROBED BY [O i] 63 μm AND [C ii] 158 μm EMISSION LINES*?Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA..The Astrophysical Journal,824(2).
MLA Zhao,et al."PROPERTIES OF INTERSTELLAR MEDIUM IN INFRARED-BRIGHT QSOs PROBED BY [O i] 63 μm AND [C ii] 158 μm EMISSION LINES*?Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.".The Astrophysical Journal 824.2(2016).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhao(赵应和),Yinghe]'s Articles
[Yan,Lin]'s Articles
[Tsai,Chao-Wei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhao(赵应和),Yinghe]'s Articles
[Yan,Lin]'s Articles
[Tsai,Chao-Wei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhao(赵应和),Yinghe]'s Articles
[Yan,Lin]'s Articles
[Tsai,Chao-Wei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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