2 mm GISMO Observations of the Galactic Center. I. Dust Emission

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dc.contributor.authorArendt, Richard
dc.contributor.authorStaguhn, Johannes
dc.contributor.authorDwek, Eli
dc.contributor.authorMorris, Mark R
dc.contributor.authorYusef-Zadeh, Farhad
dc.contributor.authorBenford, Dominic J
dc.contributor.authorKovacs, Attila
dc.contributor.authorGonzalez-Quiles, Junellie
dc.date.accessioned2019-11-13T16:52:52Z
dc.date.available2019-11-13T16:52:52Z
dc.date.issued2019-11-01
dc.description.abstractThe Central Molecular Zone (CMZ), covering the inner ∼ 1 ◦ of the Galactic plane has been mapped at 2 mm using the GISMO bolometric camera on the 30 m IRAM telescope. The 2100 resolution maps show abundant emission from cold molecular clouds, from star forming regions, and from one of the Galactic center nonthermal filaments. In this work we use the Herschel Hi-GAL data to model the dust emission across the Galactic center. We find that a single-temperature fit can describe the 160 – 500 µm emission for most lines of sight, if the long-wavelength dust emissivity scales as λ −β with β ≈ 2.25. This dust model is extrapolated to predict the 2 mm dust emission. Subtraction of the model from the GISMO data provides a clearer look at the 2 mm emission of star-forming regions and the brightest nonthermal filament.en_US
dc.description.sponsorshipBased on observations carried out with the IRAM 30 m Telescope. IRAM is supported by INSU/CNRS (France), MPG (Germany) and IGN (Spain).en_US
dc.description.urihttps://iopscience.iop.org/article/10.3847/1538-4357/ab451cen_US
dc.format.extent12 pagesen_US
dc.genrejournal articlesen_US
dc.identifier.citationRichard G. Arendt and Johannes Staguhn and Eli Dwek and Mark R. Morris and Farhad Yusef-Zadeh and Dominic J. Benford and Attila Kovács and Junellie Gonzalez-Quiles, 2 mm GISMO Observations of the Galactic Center. I. Dust Emission, 2019; The Astrophysical Journal 885,1 (2019 November 1); https://iopscience.iop.org/article/10.3847/1538-4357/ab451cen_US
dc.identifier.urihttp://hdl.handle.net/11603/16277
dc.identifier.urihttps://doi.org/10.3847/1538-4357/ab451c
dc.language.isoen_USen_US
dc.publisherThe American Astronomical Society
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsCC0 1.0 Universal (CC0 1.0) Public Domain Dedication
dc.rights.urihttps://creativecommons.org/publicdomain/zero/1.0/
dc.subjectGalactic planeen_US
dc.subjectGISMO bolometric cameraen_US
dc.subjectmolecular clouds,en_US
dc.subjectDust Emissionen_US
dc.title2 mm GISMO Observations of the Galactic Center. I. Dust Emissionen_US
dc.title.alternativeDust Emissionen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-8403-8548

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