JINGLE - V. Dust properties of nearby galaxies derived from hierarchical Bayesian SED fitting
OA Location
Author(s)
Type
Journal Article
Abstract
We study the dust properties of 192 nearby galaxies from the JINGLE survey using photometric data in the 22–850 μm range. We derive the total dust mass, temperature T, and emissivity index β of the galaxies through the fitting of their spectral energy distribution (SED) using a single modified blackbody model (SMBB). We apply a hierarchical Bayesian approach that reduces the known degeneracy between T and β. Applying the hierarchical approach, the strength of the T–β anticorrelation is reduced from a Pearson correlation coefficient R = −0.79 to R = −0.52. For the JINGLE galaxies we measure dust temperatures in the range 17−30 K and dust emissivity indices β in the range 0.6−2.2. We compare the SMBB model with the broken emissivity law modified blackbody (BMBB) and the two modified blackbody (TMBB) models. The results derived with the SMBB and TMBB are in good agreement, thus applying the SMBB, which comes with fewer free parameters, does not penalize the measurement of the cold dust properties in the JINGLE sample. We investigate the relation between T and β and other global galaxy properties in the JINGLE and Herschel Reference Survey (HRS) sample. We find that β correlates with the stellar mass surface density (R = 0.62) and anticorrelates with the H I mass fraction (MH I/M*, R = −0.65), whereas the dust temperature correlates strongly with the star formation rate normalized by the dust mass (R = 0.73). These relations can be used to estimate T and β in galaxies with insufficient photometric data available to measure them directly through SED fitting.
Date Issued
2019-11-01
Date Acceptance
2019-08-15
Citation
Monthly Notices of the Royal Astronomical Society, 2019, 489 (3), pp.4389-4417
ISSN
0035-8711
Publisher
Oxford University Press (OUP)
Start Page
4389
End Page
4417
Journal / Book Title
Monthly Notices of the Royal Astronomical Society
Volume
489
Issue
3
Copyright Statement
© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). This is a pre-copy-editing, author-produced version of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Isabella Lamperti, Amélie Saintonge, Ilse De Looze, Gioacchino Accurso, Christopher J R Clark, Matthew W L Smith, Christine D Wilson, Elias Brinks, Toby Brown, Martin Bureau, David L Clements, Stephen Eales, David H W Glass, Ho Seong Hwang, Jong Chul Lee, Lihwai Lin, Michal J Michalowski, Mark Sargent, Thomas G Williams, Ting Xiao, Chentao Yang, JINGLE – V. Dust properties of nearby galaxies derived from hierarchical Bayesian SED fitting, Monthly Notices of the Royal Astronomical Society, Volume 489, Issue 3, November 2019, Pages 4389–4417 is available online at: https://doi.org/10.1093/mnras/stz2311
This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). This is a pre-copy-editing, author-produced version of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Isabella Lamperti, Amélie Saintonge, Ilse De Looze, Gioacchino Accurso, Christopher J R Clark, Matthew W L Smith, Christine D Wilson, Elias Brinks, Toby Brown, Martin Bureau, David L Clements, Stephen Eales, David H W Glass, Ho Seong Hwang, Jong Chul Lee, Lihwai Lin, Michal J Michalowski, Mark Sargent, Thomas G Williams, Ting Xiao, Chentao Yang, JINGLE – V. Dust properties of nearby galaxies derived from hierarchical Bayesian SED fitting, Monthly Notices of the Royal Astronomical Society, Volume 489, Issue 3, November 2019, Pages 4389–4417 is available online at: https://doi.org/10.1093/mnras/stz2311
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000489288600109&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
dust, extinction
galaxies: evolution
galaxies: ISM
submillimetre: ISM
SPECTRAL ENERGY-DISTRIBUTION
JCMT LEGACY SURVEY
TEMPERATURE-DEPENDENCE
INFRARED-EMISSION
INTERSTELLAR DUST
HERSCHEL-ATLAS
MAIN-SEQUENCE
COLD DUST
MODEL
GAS
Publication Status
Published
Date Publish Online
2019-08-21