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

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Abstract
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
Keywords
galaxies: individual: M83, galaxies: individual: NGC 2403, galaxies: individual: M81, galaxies: ISM, galaxies: spiral, infrared: galaxies, FAR-INFRARED LUMINOSITY, 160 MU-M, MULTIBAND IMAGING PHOTOMETER, FORMATION RATE INDICATORS, NEARBY GALAXIES SURVEY, STAR-FORMING GALAXIES, H-II REGIONS, SPIRAL GALAXIES, MOLECULAR GAS, M33 HERM33ES

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Chicago
Bendo, GJ, A Boselli, A Dariush, M Pohlen, H Roussel, M Sauvage, MWL Smith, et al. 2012. “Investigations of Dust Heating in M81, M83 and NGC 2403 with the Herschel Space Observatory.” Monthly Notices of the Royal Astronomical Society 419 (3): 1833–1859.
APA
Bendo, G., Boselli, A., Dariush, A., Pohlen, M., Roussel, H., Sauvage, M., Smith, M., et al. (2012). Investigations of dust heating in M81, M83 and NGC 2403 with the Herschel Space Observatory. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 419(3), 1833–1859.
Vancouver
1.
Bendo G, Boselli A, Dariush A, Pohlen M, Roussel H, Sauvage M, et al. Investigations of dust heating in M81, M83 and NGC 2403 with the Herschel Space Observatory. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2012;419(3):1833–59.
MLA
Bendo, GJ, A Boselli, A Dariush, et al. “Investigations of Dust Heating in M81, M83 and NGC 2403 with the Herschel Space Observatory.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 419.3 (2012): 1833–1859. Print.
@article{2113609,
  abstract     = {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 {\textrangle}250 m originates predominantly from a component that is colder than the dust seen at {\textlangle}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},
  author       = {Bendo, GJ and Boselli, A and Dariush, A and Pohlen, M and Roussel, H and Sauvage, M and Smith, MWL and Wilson, CD and Baes, Maarten and Cooray, A and Clements, DL and Cortese, L and Foyle, K and Galametz, M and Gomez, HL and Lebouteiller, V and Lu, N and Madden, SC and Mentuch, E and O'Halloran, B and Page, MJ and Remy, A and Schulz, B and Spinoglio, L},
  issn         = {0035-8711},
  journal      = {MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
  keyword      = {galaxies: individual: M83,galaxies: individual: NGC 2403,galaxies: individual: M81,galaxies: ISM,galaxies: spiral,infrared: galaxies,FAR-INFRARED LUMINOSITY,160 MU-M,MULTIBAND IMAGING PHOTOMETER,FORMATION RATE INDICATORS,NEARBY GALAXIES SURVEY,STAR-FORMING GALAXIES,H-II REGIONS,SPIRAL GALAXIES,MOLECULAR GAS,M33 HERM33ES},
  language     = {eng},
  number       = {3},
  pages        = {1833--1859},
  title        = {Investigations of dust heating in M81, M83 and NGC 2403 with the Herschel Space Observatory},
  url          = {http://dx.doi.org/10.1111/j.1365-2966.2011.19735.x},
  volume       = {419},
  year         = {2012},
}

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