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Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705

B O'Halloran, M Galametz, SC Madden, R Auld, Maarten Baes UGent, MJ Barlow, GJ Bendo, JJ Bock, A Boselli, M Bradford, et al. (2010) ASTRONOMY & ASTROPHYSICS. 518.
abstract
We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z similar to 0.35 Z(circle dot)) 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 signipcant 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 mu m, 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.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
extinction, evolution, dust, galaxies: dwarf, STARBURST, NGC-1705, EMISSION, MILKY-WAY, HII-REGIONS, AMORPHOUS-CARBON, INTERSTELLAR DUST, SPINNING DUST GRAINS, SPECTRAL ENERGY-DISTRIBUTION, POLYCYCLIC AROMATIC-HYDROCARBONS
journal title
ASTRONOMY & ASTROPHYSICS
Astron. Astrophys.
volume
518
article number
L58
pages
5 pages
Web of Science type
Article
Web of Science id
000281527200059
JCR category
ASTRONOMY & ASTROPHYSICS
JCR impact factor
4.41 (2010)
JCR rank
10/54 (2010)
JCR quartile
1 (2010)
ISSN
0004-6361
DOI
10.1051/0004-6361/201014580
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1236872
handle
http://hdl.handle.net/1854/LU-1236872
date created
2011-05-25 11:24:22
date last changed
2017-03-01 10:27:08
@article{1236872,
  abstract     = {We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z similar to 0.35 Z(circle dot)) 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 signipcant 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 mu m, 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.},
  articleno    = {L58},
  author       = {O'Halloran, B and Galametz, M and Madden, SC and Auld, R and Baes, Maarten and Barlow, MJ and Bendo, GJ and Bock, JJ and Boselli, A and Bradford, M and Buat, V and Castro-Rodriguez, N and Chanial, P and Charlot, S and Ciesla, L and Clements, DL and Cormier, D and Cooray, A and Cortese, L and Davies, JI and Dwek, E and Eales, SA and Elbaz, D and Galliano, F and Gear, WK and Glenn, J and Gomez, HL and Hony, S and Isaak, KG and Levenson, LR and Lu, N and Okumura, K and Oliver, S and Page, MJ and Panuzzo, P and Papageorgiou, A and Parkin, TJ and Perez-Fournon, I and Pohlen, M and Rangwala, N and Rigby, EE and Roussel, H and Rykala, A and Sacchi, N and Sauvage, M and Schulz, B and Schirm, MRP and Smith, MWL and Spinoglio, L and Srinivasan, S and Stevens, JA and Symeonidis, M and Trichas, M and Vaccari, M and Vigroux, L and Wilson, CD and Wozniak, H and Wright, GS and Zeilinger, WW},
  issn         = {0004-6361},
  journal      = {ASTRONOMY \& ASTROPHYSICS},
  keyword      = {extinction,evolution,dust,galaxies: dwarf,STARBURST,NGC-1705,EMISSION,MILKY-WAY,HII-REGIONS,AMORPHOUS-CARBON,INTERSTELLAR DUST,SPINNING DUST GRAINS,SPECTRAL ENERGY-DISTRIBUTION,POLYCYCLIC AROMATIC-HYDROCARBONS},
  language     = {eng},
  pages        = {5},
  title        = {Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705},
  url          = {http://dx.doi.org/10.1051/0004-6361/201014580},
  volume       = {518},
  year         = {2010},
}

Chicago
O’Halloran, B, M Galametz, SC Madden, R Auld, Maarten Baes, MJ Barlow, GJ Bendo, et al. 2010. “Herschel Photometric Observations of the Low Metallicity Dwarf Galaxy NGC 1705.” Astronomy & Astrophysics 518.
APA
O’Halloran, B., Galametz, M., Madden, S., Auld, R., Baes, M., Barlow, M., Bendo, G., et al. (2010). Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705. ASTRONOMY & ASTROPHYSICS, 518.
Vancouver
1.
O’Halloran B, Galametz M, Madden S, Auld R, Baes M, Barlow M, et al. Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705. ASTRONOMY & ASTROPHYSICS. 2010;518.
MLA
O’Halloran, B, M Galametz, SC Madden, et al. “Herschel Photometric Observations of the Low Metallicity Dwarf Galaxy NGC 1705.” ASTRONOMY & ASTROPHYSICS 518 (2010): n. pag. Print.