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dc.contributor.authorBattisti, A. J.
dc.contributor.authorCunha, E. da
dc.contributor.authorShivaei, I.
dc.contributor.authorCalzetti, D.
dc.date.accessioned2020-04-14T17:35:33Z
dc.date.available2020-04-14T17:35:33Z
dc.date.issued2020-01-15
dc.identifier.citationA. J. Battisti et al 2020 ApJ 888 108en_US
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ab5fdd
dc.identifier.urihttp://hdl.handle.net/10150/640974
dc.description.abstractWe update the spectral modeling code MAGPHYS to include a 2175 A absorption feature in its UV to near-IR dust attenuation prescription. This allows us to determine the strength of this feature and the shape of the dust attenuation curve in similar to 5000 star-forming galaxies at in the COSMOS field. We find that a 2175 A absorption feature of similar to 1/3 the strength of that in the Milky Way is required for models to minimize residuals. We characterize the total effective dust attenuation curves as a function of several galaxy properties and find that the UV slopes of the attenuation curve for COSMOS galaxies show a strong dependence on star formation rate (SFR) and total dust attenuation (A(V)), such that galaxies with higher SFR and A(V) have shallower curves and vice versa. These results are consistent with expectations from radiative transfer that attenuation curves become shallower as the effective dust optical depth increases. We do not find significant trends in the strength of the 2175 A absorption feature as a function of galaxy properties, but this may result from the high uncertainties associated with this measurement. The updated code is publicly available online (following acceptance).en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rightsCopyright © 2020. The American Astronomical Society. All rights reserved.en_US
dc.rights.urihttp://iopscience.iop.org/info/page/text-and-data-miningen_US
dc.titleThe Strength of the 2175 Å Feature in the Attenuation Curves of Galaxies at 0.1 < z ≲ 3en_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.identifier.journalASTROPHYSICAL JOURNALen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleThe Astrophysical Journal
dc.source.volume888
dc.source.issue2
dc.source.beginpage108
refterms.dateFOA2020-04-14T17:35:37Z


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