The Physical Characteristics of Interstellar Medium in NGC 3665 with Herschel Observations
文献类型:期刊论文
作者 | Xiao, Meng-Yuan1,2,3; Zhao YH(赵应和)4,5,6; Gu, Qiu-Sheng1,2,3; Shi, Yong1,2,3 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2018-02-20 |
卷号 | 854期号:2 |
ISSN号 | 0004-637X |
关键词 | Galaxies: Individual (Ngc 3665) Galaxies: Ism Infrared: Ism Ism: Lines And bAnds Galaxies: Elliptical And Lenticular Cd |
DOI | 10.3847/1538-4357/aaa895 |
产权排序 | 第4完成单位 |
文献子类 | Article |
英文摘要 | We present the analysis of the physical properties of the interstellar medium in the nearby early-type galaxy NGC 3665, based on the far-infrared photometric and spectroscopic data as observed by the Herschel Space Observatory. The fit to the spectral energy distribution reveals a high dust content in the galaxy, with a dust-to-stellar mass ratio of M-dust/M-* similar to 1.1 x 10(-4) that is nearly three times larger than the mean value of local S0+S0a galaxies. For the ionized regions (H II regions), the electron density (ne) is around 49.5 +/- 11.9 cm(-3) based on the [N II] 122 mu m/[N II] 205 mu m ratio. For the photodissociation regions, the heating efficiency ranges from 1.26. x. 10(-3) to 1.37 x 10-3 based on the ([C II]+[O I] 63 mu m)/L-TIR, which is slightly lower than other local galaxies; the hydrogen nucleus density and the strength of the far-UV radiation field are n similar to 10(4) cm(-3) and G0 similar to 10(-0.25), respectively. The above results are consistent with the presence of weak active galactic nuclei and a low level of star-forming activity in NGC 3665. Our results give strong support to the "morphological quenching" scenario, where a compact, massive bulge can stabilize the amount of cool gas against star formation. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | EARLY-TYPE GALAXIES ; DIGITAL SKY SURVEY ; STAR-FORMING GALAXIES ; POTSDAM MULTIAPERTURE SPECTROPHOTOMETER ; ACTIVE GALACTIC NUCLEI ; ATLAS(3D) PROJECT ; NEARBY GALAXIES ; SPITZER OBSERVATIONS ; HOST GALAXIES ; PHOTODISSOCIATION REGIONS |
资助项目 | National Key Research and Development Program of China[2017YFA0402703] ; National Key Research and Development Program of China[2017YFA0402704] ; National Natural Science Foundation of China[11673057] ; National Natural Science Foundation of China[11733002] ; BMVIT (Austria) ; ESA-PRODEX (Belgium) ; CEA/CNES (France) ; DLR (Germany) ; ASI/INAF (Italy) ; CICYT/MCYT (Spain) ; CSA (Canada) ; NAOC (China) ; CEA (France) ; CNES (France) ; CNRS (France) ; ASI (Italy) ; MCINN (Spain) ; SNSB (Sweden) ; STFC (UK) ; UKSA (UK) ; NASA (USA) |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000425389700009 |
资助机构 | National Key Research and Development Program of China[2017YFA0402703, 2017YFA0402704] ; National Natural Science Foundation of China[11673057, 11733002] ; BMVIT (Austria) ; ESA-PRODEX (Belgium) ; CEA/CNES (France) ; DLR (Germany) ; ASI/INAF (Italy) ; CICYT/MCYT (Spain) ; CSA (Canada) ; NAOC (China) ; CEA (France) ; CNES (France) ; CNRS (France) ; ASI (Italy) ; MCINN (Spain) ; SNSB (Sweden) ; STFC (UK) ; UKSA (UK) ; NASA (USA) |
源URL | [http://ir.ynao.ac.cn/handle/114a53/12287] |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Gu, Qiu-Sheng |
作者单位 | 1.School of Astronomy and Space Science, Nanjing University, Nanjing 210093, People's Republic of China 2.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210093, People's Republic of China 3.Collaborative Innovation Center of Modern Astronomy and Space Exploration, Nanjing 210093, People's Republic of China 4.Yunnan Observatories, CAS, Kunming 650011, People's Republic of China 5.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650011, People's Republic of China 6.Center for Astronomical Mega-Science, CAS, 20A Datun Road, Chaoyang District, Beijing 100012, People's Republic of China |
推荐引用方式 GB/T 7714 | Xiao, Meng-Yuan,Zhao YH,Gu, Qiu-Sheng,et al. The Physical Characteristics of Interstellar Medium in NGC 3665 with Herschel Observations[J]. ASTROPHYSICAL JOURNAL,2018,854(2). |
APA | Xiao, Meng-Yuan,Zhao YH,Gu, Qiu-Sheng,&Shi, Yong.(2018).The Physical Characteristics of Interstellar Medium in NGC 3665 with Herschel Observations.ASTROPHYSICAL JOURNAL,854(2). |
MLA | Xiao, Meng-Yuan,et al."The Physical Characteristics of Interstellar Medium in NGC 3665 with Herschel Observations".ASTROPHYSICAL JOURNAL 854.2(2018). |
入库方式: OAI收割
来源:云南天文台
其他版本
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。