中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 分子云与恒星形成研究团组  > 期刊论文
题名: QUANTIFYING THE HEATING SOURCES FOR MID-INFRARED DUST EMISSIONS IN GALAXIES: THE CASE OF M 81
作者: Lu, N.1; Bendo, G. J.2; Boselli, A.3, 4; Baes, M.5; Wu, H.6; Madden, S. C.7; De Looze, I.5; Remy-Ruyer, A.7, 8; Boquien, M.9; Wilson, C. D.10; Galametz, M.11; Lam, M. I.6; Cooray, A.12; Spinoglio, L.13; Zhao, Y.1, 14, 15
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2014-12-20
卷号: 797, 期号:2, 页码:129
关键词: galaxies: individual (M 81) ; galaxies: ISM ; galaxies: star formation ; infrared: galaxies ; infrared: ISM ; ISM: lines and bands
学科分类: 天文和天体物理
DOI: 10.1088/0004-637X/797/2/129
文章类型: Article
英文摘要: With the newly available photometric images at 250 and 500 mu m from the Herschel Space Observatory, we study quantitative correlations over a sub-kiloparsec scale among three distinct emission components in the interstellar medium of the nearby spiral galaxy M81 (NGC 3031): (1) I-8 or I-24, the surface brightness of the mid-infrared emission observed in the Spitzer Space Telescope 8 or 24 mu m band, with I-8 and I-24 being dominated by the emissions from polycyclic aromatic hydrocarbons (PAHs) and very small grains (VSGs) of dust, respectively; (2) I-500, that of the cold dust continuum emission in the Herschel Space Observatory 500 mu m band, dominated by the emission from large dust grains heated by evolved stars; and (3) I-H alpha, a nominal surface brightness of the H alpha line emission, from gas ionized by newly formed massive stars. The results from our correlation study, free from any assumption on or modeling of dust emissivity law or dust temperatures, present solid evidence for significant heating of PAHs and VSGs by evolved stars. In the case of M81, about 67% (48%) of the 8 mu m (24 mu m) emission derives its heating from evolved stars, with the remainder attributed to radiation heating associated with ionizing stars.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: DIFFUSE IONIZED-GAS ; AROMATIC-HYDROCARBON EMISSION ; STAR-FORMATION RATES ; NEAR-INFRARED CONTINUUM ; H-ALPHA ; SPIRAL GALAXIES ; INTERSTELLAR DUST ; VIRGO CLUSTER ; SMALL GRAINS ; M81
收录类别: SCI
语种: 英语
WOS记录号: WOS:000346291600057
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/11560
Appears in Collections:分子云与恒星形成研究团组_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
201402001QUANTIFYING THE HEATING SOURCES FOR MID-INFRARED DUST EMISSIONS IN GALAXIES THE CASE OF M 81.pdf(656KB)----限制开放View 联系获取全文

作者单位: 1.CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA
2.Univ Manchester, Sch Phys & Astron, Jordrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England
3.Univ Aix Marseille, LAM, F-13388 Marseille, France
4.CNRS, UMR7326, F-13388 Marseille, France
5.Univ Ghent, Sterrenkundig Observat, B-9000 Ghent, Belgium
6.Chinese Acad Sci, Natl Astron Observat, Key Lab Opt Astron, Beijing 100012, Peoples R China
7.Univ Paris 07, CEA, Lab AIM, IRFU Serv Astrophys, F-91191 Gif Sur Yvette, France
8.CNRS, Inst Astrophys Spatiale, UMR8617, F-91405 Orsay, France
9.Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
10.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
11.European So Observ, D-85748 Garching, Germany
12.Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
13.INAF, Ist Astrofis & Planetol Spaziali, I-00133 Rome, Italy
14.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
15.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China

Recommended Citation:
Lu, N.; Bendo, G. J.; Boselli, A.; Baes, M.; Wu, H.; Madden, S. C.; De Looze, I.; Remy-Ruyer, A.; Boquien, M.; Wilson, C. D.; Galametz, M.; Lam, M. I.; Cooray, A.; Spinoglio, L.; Zhao, Y..QUANTIFYING THE HEATING SOURCES FOR MID-INFRARED DUST EMISSIONS IN GALAXIES: THE CASE OF M 81,ASTROPHYSICAL JOURNAL,2014,797(2):129
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lu, N.]'s Articles
[Bendo, G. J.]'s Articles
[Boselli, A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lu, N.]‘s Articles
[Bendo, G. J.]‘s Articles
[Boselli, A.]‘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
文件名: 201402001QUANTIFYING THE HEATING SOURCES FOR MID-INFRARED DUST EMISSIONS IN GALAXIES THE CASE OF M 81.pdf
格式: Adobe PDF
此文件暂不支持浏览
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 © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace