Bibcode
Baes, M.; Fritz, J.; Gadotti, D. A.; Smith, D. J. B.; Dunne, L.; da Cunha, E.; Amblard, A.; Auld, R.; Bendo, G. J.; Bonfield, D.; Burgarella, D.; Buttiglione, S.; Cava, A.; Clements, D.; Cooray, A.; Dariush, A.; de Zotti, G.; Dye, S.; Eales, S.; Frayer, D.; Gonzalez-Nuevo, J.; Herranz, D.; Ibar, E.; Ivison, R.; Lagache, G.; Leeuw, L.; Lopez-Caniego, M.; Jarvis, M.; Maddox, S.; Negrello, M.; Michałowski, M.; Pascale, E.; Pohlen, M.; Rigby, E.; Rodighiero, G.; Samui, S.; Serjeant, S.; Temi, P.; Thompson, M.; van der Werf, P.; Verma, A.; Vlahakis, C.
Bibliographical reference
Astronomy and Astrophysics, Volume 518, id.L39
Advertised on:
7
2010
Journal
Citations
85
Refereed citations
78
Description
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.
Herschel is an ESA space observatory with science instruments provided
by European-led principal- investigator consortia and with important
participation from NASA.
Related projects
Formation and Evolution of Galaxies: Observations in Infrared and other Wavelengths
This IAC research group carries out several extragalactic projects in different spectral ranges, using space as well as ground-based telescopes, to study the cosmological evolution of galaxies and the origin of nuclear activity in active galaxies. The group is a member of the international consortium which built the SPIRE instrument for the
Ismael
Pérez Fournon