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Herschel-ATLAS : the dust energy balance in the edge-on spiral galaxy UGC 754

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Abstract
We use Herschel PACS and SPIRE observations of the edge-on spiral galaxy UGC 4754, taken as part of the H-ATLAS SDP observations, to investigate the dust energy balance in this galaxy. We build detailed SKIRT radiative models based on SDSS and UKIDSS maps and use these models to predict the far-infrared emission. We find that our radiative transfer model underestimates the observed FIR emission by a factor of two to three. Similar discrepancies have been found for other edge-on spiral galaxies based on IRAS, ISO, and SCUBA data. Thanks to the good sampling of the SED at FIR wavelengths, we can rule out an underestimation of the FIR emissivity as the cause for this discrepancy. Instead we support highly obscured star formation that contributes little to the optical extinction as a more probable explanation.
Keywords
galaxies: ISM, infrared: galaxies, extinction, dust, radiative transfer, RADIATIVE-TRANSFER, INFRARED-EMISSION, STAR-FORMATION, DISC GALAXIES, SKY SURVEY, NGC 891, EXTINCTION, BAND, DECOMPOSITION, DISTRIBUTIONS

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Chicago
Baes, Maarten, Jacopo Fritz, DA Gadotti, DJB Smith, L Dunne, E da Cunha, A Amblard, et al. 2010. “Herschel-ATLAS : the Dust Energy Balance in the Edge-on Spiral Galaxy UGC 754.” Astronomy & Astrophysics 518.
APA
Baes, M., Fritz, J., Gadotti, D., Smith, D., Dunne, L., da Cunha, E., Amblard, A., et al. (2010). Herschel-ATLAS : the dust energy balance in the edge-on spiral galaxy UGC 754. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
Baes M, Fritz J, Gadotti D, Smith D, Dunne L, da Cunha E, et al. Herschel-ATLAS : the dust energy balance in the edge-on spiral galaxy UGC 754. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
Baes, Maarten, Jacopo Fritz, DA Gadotti, et al. “Herschel-ATLAS : the Dust Energy Balance in the Edge-on Spiral Galaxy UGC 754.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.
@article{1236476,
  abstract     = {We use Herschel PACS and SPIRE observations of the edge-on spiral galaxy UGC 4754, taken as part of the H-ATLAS SDP observations, to investigate the dust energy balance in this galaxy. We build detailed SKIRT radiative models based on SDSS and UKIDSS maps and use these models to predict the far-infrared emission. We find that our radiative transfer model underestimates the observed FIR emission by a factor of two to three. Similar discrepancies have been found for other edge-on spiral galaxies based on IRAS, ISO, and SCUBA data. Thanks to the good sampling of the SED at FIR wavelengths, we can rule out an underestimation of the FIR emissivity as the cause for this discrepancy. Instead we support highly obscured star formation that contributes little to the optical extinction as a more probable explanation.},
  articleno    = {L39},
  author       = {Baes, Maarten and Fritz, Jacopo and Gadotti, DA and Smith, DJB and Dunne, L and da Cunha, E and Amblard, A and Auld, R and Bendo, GJ and Bonfield, D and Burgarella, D and Buttiglione, S and Cava, A and Clements, D and Cooray, A and Dariush, A and de Zotti, G and Dye, S and Eales, S and Frayer, D and Gonzalez-Nuevo, J and Herranz, D and Ibar, E and Ivison, R and Lagache, G and Leeuw, L and Lopez-Caniego, M and Jarvis, M and Maddox, S and Negrello, M and Michalowski, M and Pascale, E and Pohlen, M and Rigby, E and Rodighiero, G and Samui, S and Serjeant, S and Temi, P and Thompson, M and van der Werf, P and Verma, A and Vlahakis, C},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {galaxies: ISM,infrared: galaxies,extinction,dust,radiative transfer,RADIATIVE-TRANSFER,INFRARED-EMISSION,STAR-FORMATION,DISC GALAXIES,SKY SURVEY,NGC 891,EXTINCTION,BAND,DECOMPOSITION,DISTRIBUTIONS},
  language     = {eng},
  pages        = {5},
  title        = {Herschel-ATLAS : the dust energy balance in the edge-on spiral galaxy UGC 754},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014644},
  volume       = {518},
  year         = {2010},
}

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