Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705

B. O'Halloran; M. Galametz; S.C. Madden; R. Auld; M. Baes; M.J. Barlow; G.J. Bendo; J.J. Bock; A. Boselli; M. Bradford; V. Buat; N. Castro-Rodriguez; P. Chanial; S. Charlot; L. Ciesla; D.L. Clements; D. Cormier; A. Cooray; Luca Cortese; J.I. Davies; E. Dwek; S.A. Eales; D. Elbaz; F. Galliano; W.K. Gear; J. Glenn; H.L. Gomez; S. Hony; K.G. Isaak; L.R. Levenson; N. Lu; K. Okumura; S. Oliver; M.J. Page; P. Panuzzo; A. Papageorgiou; T.J. Parkin; I. Perez-Fournon; M. Pohlen; N. Rangwala; E.E. Rigby; H. Roussel; A. Rykala; N. Sacchi; M. Sauvage; B. Schulz; M.R.P. Schirm; M.W.L. Smith; L. Spinoglio; S. Srinivasan; J.A. Stevens; M. Symeonidis; M. Trichas; M. Vaccari; L. Vigroux; C.D. Wilson; H. Wozniak; G.S. Wright; W.W. Zeilinger

doi:10.1051/0004-6361/201014580

Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705

B. O'Halloran, M. Galametz, S.C. Madden, R. Auld, M. Baes, M.J. Barlow, G.J. Bendo, J.J. Bock, A. Boselli, M. Bradford, V. Buat, N. Castro-Rodriguez, P. Chanial, S. Charlot, L. Ciesla, D.L. Clements, D. Cormier, A. Cooray, Luca Cortese, J.I. DaviesE. Dwek, S.A. Eales, D. Elbaz, F. Galliano, W.K. Gear, J. Glenn, H.L. Gomez, S. Hony, K.G. Isaak, L.R. Levenson, N. Lu, K. Okumura, S. Oliver, M.J. Page, P. Panuzzo, A. Papageorgiou, T.J. Parkin, I. Perez-Fournon, M. Pohlen, N. Rangwala, E.E. Rigby, H. Roussel, A. Rykala, N. Sacchi, M. Sauvage, B. Schulz, M.R.P. Schirm, M.W.L. Smith, L. Spinoglio, S. Srinivasan, J.A. Stevens, M. Symeonidis, M. Trichas, M. Vaccari, L. Vigroux, C.D. Wilson, H. Wozniak, G.S. Wright, W.W. Zeilinger

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Abstract

We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ∼ 0.35 Z⊙) 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 μm, 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. © 2010 ESO.

Original language	English
Pages (from-to)	5
Journal	Astronomy and Astrophysics
Volume	518
Issue number	4
DOIs	https://doi.org/10.1051/0004-6361/201014580
Publication status	Published - 2010

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O'Halloran, B., Galametz, M., Madden, S. C., Auld, R., Baes, M., Barlow, M. J., Bendo, G. J., Bock, J. J., Boselli, A., Bradford, M., Buat, V., Castro-Rodriguez, N., Chanial, P., Charlot, S., Ciesla, L., Clements, D. L., Cormier, D., Cooray, A., Cortese, L., ... Zeilinger, W. W. (2010). Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705. Astronomy and Astrophysics, 518(4), 5. https://doi.org/10.1051/0004-6361/201014580

@article{235ce8b1d4a8405299196e7d25c4754d,

title = "Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705",

abstract = "We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ∼ 0.35 Z⊙) 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 μm, 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. {\textcopyright} 2010 ESO.",

author = "B. O'Halloran and M. Galametz and S.C. Madden and R. Auld and M. Baes and M.J. Barlow and G.J. Bendo and J.J. Bock and A. Boselli and M. Bradford and V. Buat and N. Castro-Rodriguez and P. Chanial and S. Charlot and L. Ciesla and D.L. Clements and D. Cormier and A. Cooray and Luca Cortese and J.I. Davies and E. Dwek and S.A. Eales and D. Elbaz and F. Galliano and W.K. Gear and J. Glenn and H.L. Gomez and S. Hony and K.G. Isaak and L.R. Levenson and N. Lu and K. Okumura and S. Oliver and M.J. Page and P. Panuzzo and A. Papageorgiou and T.J. Parkin and I. Perez-Fournon and M. Pohlen and N. Rangwala and E.E. Rigby and H. Roussel and A. Rykala and N. Sacchi and M. Sauvage and B. Schulz and M.R.P. Schirm and M.W.L. Smith and L. Spinoglio and S. Srinivasan and J.A. Stevens and M. Symeonidis and M. Trichas and M. Vaccari and L. Vigroux and C.D. Wilson and H. Wozniak and G.S. Wright and W.W. Zeilinger",

year = "2010",

doi = "10.1051/0004-6361/201014580",

language = "English",

volume = "518",

pages = "5",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

number = "4",

}

O'Halloran, B, Galametz, M, Madden, SC, Auld, R, Baes, M, Barlow, MJ, Bendo, GJ, Bock, JJ, Boselli, A, Bradford, M, Buat, V, Castro-Rodriguez, N, Chanial, P, Charlot, S, Ciesla, L, Clements, DL, Cormier, D, Cooray, A, Cortese, L, Davies, JI, Dwek, E, Eales, SA, Elbaz, D, Galliano, F, Gear, WK, Glenn, J, Gomez, HL, Hony, S, Isaak, KG, Levenson, LR, Lu, N, Okumura, K, Oliver, S, Page, MJ, Panuzzo, P, Papageorgiou, A, Parkin, TJ, Perez-Fournon, I, Pohlen, M, Rangwala, N, Rigby, EE, Roussel, H, Rykala, A, Sacchi, N, Sauvage, M, Schulz, B, Schirm, MRP, Smith, MWL, Spinoglio, L, Srinivasan, S, Stevens, JA, Symeonidis, M, Trichas, M, Vaccari, M, Vigroux, L, Wilson, CD, Wozniak, H, Wright, GS & Zeilinger, WW 2010, 'Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705', Astronomy and Astrophysics, vol. 518, no. 4, pp. 5. https://doi.org/10.1051/0004-6361/201014580

TY - JOUR

T1 - Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705

AU - O'Halloran, B.

AU - Galametz, M.

AU - Madden, S.C.

AU - Auld, R.

AU - Baes, M.

AU - Barlow, M.J.

AU - Bendo, G.J.

AU - Bock, J.J.

AU - Boselli, A.

AU - Bradford, M.

AU - Buat, V.

AU - Castro-Rodriguez, N.

AU - Chanial, P.

AU - Charlot, S.

AU - Ciesla, L.

AU - Clements, D.L.

AU - Cormier, D.

AU - Cooray, A.

AU - Cortese, Luca

AU - Davies, J.I.

AU - Dwek, E.

AU - Eales, S.A.

AU - Elbaz, D.

AU - Galliano, F.

AU - Gear, W.K.

AU - Glenn, J.

AU - Gomez, H.L.

AU - Hony, S.

AU - Isaak, K.G.

AU - Levenson, L.R.

AU - Lu, N.

AU - Okumura, K.

AU - Oliver, S.

AU - Page, M.J.

AU - Panuzzo, P.

AU - Papageorgiou, A.

AU - Parkin, T.J.

AU - Perez-Fournon, I.

AU - Pohlen, M.

AU - Rangwala, N.

AU - Rigby, E.E.

AU - Roussel, H.

AU - Rykala, A.

AU - Sacchi, N.

AU - Sauvage, M.

AU - Schulz, B.

AU - Schirm, M.R.P.

AU - Smith, M.W.L.

AU - Spinoglio, L.

AU - Srinivasan, S.

AU - Stevens, J.A.

AU - Symeonidis, M.

AU - Trichas, M.

AU - Vaccari, M.

AU - Vigroux, L.

AU - Wilson, C.D.

AU - Wozniak, H.

AU - Wright, G.S.

AU - Zeilinger, W.W.

PY - 2010

Y1 - 2010

N2 - We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ∼ 0.35 Z⊙) 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 μm, 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. © 2010 ESO.

AB - We present Herschel SPIRE and PACS photometeric observations of the low metallicity (Z ∼ 0.35 Z⊙) 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 μm, 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. © 2010 ESO.

U2 - 10.1051/0004-6361/201014580

DO - 10.1051/0004-6361/201014580

M3 - Article

SN - 0004-6361

VL - 518

SP - 5

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 4

ER -

Herschel photometric observations of the low metallicity dwarf galaxy NGC 1705

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