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An ALMA/HST Study of Millimeter Dust Emission and Star Clusters

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dc.contributor.authorTurner, J. A.
dc.contributor.authorDale, Daniel A
dc.contributor.authorAdamo, A.
dc.contributor.authorCalzetti, Daniela
dc.contributor.authorGrasha, Kathryn
dc.contributor.authorGrebel, E.
dc.contributor.authorJohnson, K. E.
dc.contributor.authorLee, Janice
dc.contributor.authorSmith, L. J.
dc.contributor.authorYoon, I
dc.date.accessioned2022-03-09T04:06:44Z
dc.date.issued2019
dc.date.updated2020-12-20T07:25:33Z
dc.description.abstractWe present results from a joint ALMA/HST study of the nearby spiral galaxy NGC 628. We combine the Hubble Space Telescope (HST) Legacy ExtraGalactic UV Survey (LEGUS) database of over 1000 stellar clusters in NGC 628 with ALMA Cycle 4 mm/submillimeter observations of the cold dust continuum that span ~15 kpc2 including the nuclear region and western portions of the galaxy's disk. The resolution-1farcs1 or approximately 50 pc at the distance of NGC 628-allows us to constrain the spatial variations in the slope of the millimeter dust continuum as a function of the ages and masses of the nearby stellar clusters. Our results indicate an excess of dust emission in the millimeter, assuming a typical cold dust model for a normal star-forming galaxy, but little correlation of the dust continuum slope with stellar cluster age or mass. For the depth and spatial coverage of these observations, we cannot substantiate the millimeter/submillimeter excess arising from the processing of dust grains by the local interstellar radiation field. We detect a bright unknown source in NGC 628 in ALMA bands 4 and 7 with no counterparts at other wavelengths from ancillary data. We speculate this is possibly a dust-obscured supernova.en_AU
dc.description.sponsorshipA.A. acknowledges the support of the Swedish Research Council, Vetenskapsrådet, and the Swedish National Space Agency (SNSA). J.A.T. was supported by the Wyoming NASA Space Grant Consortium. These observations are associated with program # 13364, the support for which was provided by NASA through a grant from the Space Telescope Science Institute (STScI). Based on observations obtained with the NASA/ESA Hubble Space Telescope, at STScI, which is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. This research is partially support by by NSF grants 1716335 (PI: K. Johnson) by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0004-637Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/261949
dc.language.isoen_AUen_AU
dc.publisherIOP Publishingen_AU
dc.rights© 2019 The Authorsen_AU
dc.sourceThe Astrophysical Journalen_AU
dc.titleAn ALMA/HST Study of Millimeter Dust Emission and Star Clustersen_AU
dc.typeJournal articleen_AU
local.bibliographicCitation.issue112en_AU
local.bibliographicCitation.lastpage7en_AU
local.bibliographicCitation.startpage1en_AU
local.contributor.affiliationTurner, J. A., University of Wyoming, Department of Physics and Astronomyen_AU
local.contributor.affiliationDale, Daniel A, University of Wyomingen_AU
local.contributor.affiliationAdamo, A., The Oskar Klein Centreen_AU
local.contributor.affiliationCalzetti, Daniela, University of Massachusettsen_AU
local.contributor.affiliationGrasha, Kathryn, College of Science, ANUen_AU
local.contributor.affiliationGrebel, E., Universitat Heidelbergen_AU
local.contributor.affiliationJohnson, K. E., University of Virginiaen_AU
local.contributor.affiliationLee, Janice, Caltech-IPACen_AU
local.contributor.affiliationSmith, L. J., European Space Agency/Space Telescope Science Instituteen_AU
local.contributor.affiliationYoon, I, National Radio Astronomy Observatoryen_AU
local.contributor.authoruidGrasha, Kathryn, u1050982en_AU
local.description.embargo2099-12-31
local.description.notesImported from ARIESen_AU
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systemsen_AU
local.identifier.absfor020103 - Cosmology and Extragalactic Astronomyen_AU
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciencesen_AU
local.identifier.ariespublicationu3102795xPUB5498en_AU
local.identifier.citationvolume884en_AU
local.identifier.doi10.3847/1538-4357/ab3faaen_AU
local.identifier.scopusID2-s2.0-85075163685
local.publisher.urlhttps://iopscience.iop.org/en_AU
local.type.statusPublished Versionen_AU

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