2010A&A...518L..39B


Query : 2010A&A...518L..39B

2010A&A...518L..39B - Astronomy and Astrophysics, volume 518, L39-39 (2010/7-2)

Herschel-ATLAS: the dust energy balance in the edge-on spiral galaxy UGC 4754.

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., MICHALOWSKI M., PASCALE E., POHLEN M., RIGBY E., RODIGHIERO G., SAMUI S., SERJEANT S., TEMI P., THOMPSON M., VAN DER WERF P., VERMA A. and VLAHAKIS C.

Abstract (from CDS):

We use Herschel PACS and SPIRE observations of the edge-on spiral galaxy UGC4754, 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.

Abstract Copyright:

Journal keyword(s): radiative transfer - dust, extinction - galaxies: ISM - infrared: galaxies

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1612 2
2 UGC 4754 EmG 09 04 00.916 -00 05 19.68   16.11   14.92   ~ 25 0

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2023.01.30-22:44:36

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