Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2010-05-12
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
5 pages, 2 figures, accepted for publication in A&A (Herschel special issue)
Scientific paper
We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ~ 0.35 solar) nearby dwarf galaxy, NGC 1705, in six wavelength bands as part of the Dwarf Galaxy Survey guaranteed time Herschel Key Program. We confirm the presence of two dominant circumnuclear IR-bright regions surrounding the central super star cluster that had been previously noted at mid-IR wavelengths and in the sub-mm by LABOCA. On constructing a global spectral energy distribution using the SPIRE and PACS photometry, in conjunction with archival IR measurements, we note the presence of an excess at sub-mm wavelengths. This excess suggests the presence of a significant cold dust component within NGC 1705 and was modeled as an additional cold component in the SED. Although alternative explanations for the sub-mm excess beyond 350 microns, such as changes to the dust emissivity cannot be ruled out, the most likely explanation for the observed submillimetre excess is that of an additional cold dust component.
Auld Robbie
Baes Maarten
Barlow Michael J.
Bendo George J.
Bock James Joseph
No associations
LandOfFree
Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-499595