Investigations of dust heating in M81, M83 and NGC 2403 with the Herschel Space Observatory

被引：139

作者：

Bendo, G. J. ^{[1
,2
]}

Boselli, A. ^{[3
]}

Dariush, A. ^{[2
,4
,5
]}

Pohlen, M. ^{[4
]}

Roussel, H. ^{[6
]}

Sauvage, M. ^{[7
]}

Smith, M. W. L. ^{[4
]}

Wilson, C. D. ^{[8
]}

Baes, M. ^{[9
]}

Cooray, A. ^{[10
]}

Clements, D. L. ^{[2
]}

Cortese, L. ^{[11
]}

Foyle, K. ^{[8
]}

Galametz, M. ^{[12
]}

Gomez, H. L. ^{[4
]}

Lebouteiller, V. ^{[7
]}

Lu, N. ^{[13
,14
]}

Madden, S. C. ^{[7
]}

Mentuch, E. ^{[8
]}

O'Halloran, B. ^{[2
]}

Page, M. J. ^{[15
]}

Remy, A. ^{[7
]}

Schulz, B. ^{[16
]}

Spinoglio, L. ^{[17
]}

机构：

[1] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys,UK ALMA Reg Ctr Node, Manchester M13 9PL, Lancs, England

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England

[3] CNRS, UMR6110, Lab Astrophys Marseille, F-13388 Marseille, France

[4] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales

[5] Inst Res Fundamental Sci IPM, Sch Astron, Tehran, Iran

[6] Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France

[7] Univ Paris Diderot, CEA, IRFU, Serv Astrophys,Lab AIM, F-91191 Gif Sur Yvette, France

[8] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[9] Univ Ghent, Sterrenkundig Observ, B-9000 Ghent, Belgium

[10] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[11] European So Observ, D-85748 Garching, Germany

[12] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[13] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[14] CALTECH, Dept Astron, Pasadena, CA 91125 USA

[15] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[16] CALTECH, Ctr Infrared Proc & Anal, Pasadena, CA 91125 USA

[17] INAF, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 419卷 / 03期

基金：

加拿大自然科学与工程研究理事会; 美国国家航空航天局;

关键词：

galaxies: individual: M81; galaxies: individual: M83; galaxies: individual: NGC 2403; galaxies: ISM; galaxies: spiral; infrared: galaxies; FAR-INFRARED LUMINOSITY; MULTIBAND IMAGING PHOTOMETER; UNIVERSE GALAXY SURVEY; MU-M EMISSION; H-II REGIONS; STAR-FORMATION; MOLECULAR GAS; COLD DUST; ABSOLUTE CALIBRATION; INTERSTELLAR DUST;

D O I：

10.1111/j.1365-2966.2011.19735.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use Spitzer Space Telescope and Herschel Space Observatory far-infrared data along with ground-based optical and near-infrared data to understand how dust heating in the nearby face-on spiral galaxies M81, M83 and NGC 2403 is affected by the starlight from all stars and by the radiation from star-forming regions. We find that 70/160 m surface brightness ratios tend to be more strongly influenced by star-forming regions. However, the 250/350 m and 350/500 m surface brightness ratios are more strongly affected by the light from the total stellar populations, suggesting that the dust emission at >250 m originates predominantly from a component that is colder than the dust seen at <160 m and that is relatively unaffected by star formation activity. We conclude by discussing the implications of this for modelling the spectral energy distributions of both nearby and more distant galaxies and for using far-infrared dust emission to trace star formation.

引用

页码：1833 / 1859

页数：27

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