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dc.contributor.authorNarayan, Gautham
dc.contributor.authorMatheson, Thomas
dc.contributor.authorSaha, Abhijit
dc.contributor.authorAxelrod, Tim
dc.contributor.authorCalamida, Annalisa
dc.contributor.authorOlszewski, Edward
dc.contributor.authorClaver, Jenna
dc.contributor.authorMandel, Kaisey S.
dc.contributor.authorBohlin, Ralph C.
dc.contributor.authorHolberg, Jay B.
dc.contributor.authorDeustua, Susana
dc.contributor.authorRest, Armin
dc.contributor.authorStubbs, Christopher W.
dc.contributor.authorShanahan, Clare E.
dc.contributor.authorVaz, Amali L.
dc.contributor.authorZenteno, Alfredo
dc.contributor.authorStrampelli, Giovanni
dc.contributor.authorHubeny, Ivan
dc.contributor.authorPoints, Sean
dc.contributor.authorSabbi, Elena
dc.contributor.authorMackenty, John
dc.date.accessioned2019-07-02T23:29:50Z
dc.date.available2019-07-02T23:29:50Z
dc.date.issued2019-04
dc.identifier.citationGautham Narayan et al 2019 ApJS 241 20en_US
dc.identifier.issn1538-4365
dc.identifier.doi10.3847/1538-4365/ab0557
dc.identifier.urihttp://hdl.handle.net/10150/633285
dc.description.abstractWe have established a network of 19 faint (16.5 mag < V < 19 mag) northern and equatorial DA white dwarfs (WDs) as spectrophotometric standards for present and future wide-field observatories. Our analysis infers spectral energy distribution (SED) models for the stars that are tied to the three CALSPEC primary standards. Our SED models are consistent with panchromatic Hubble Space Telescope photometry to better than 1%. The excellent agreement between observations and models validates the use of non-LTE DA WD atmospheres extinguished by interstellar dust as accurate spectrophotometric references. Our standards are accessible from both hemispheres and suitable for ground- and space-based observatories covering the ultraviolet to the near-infrared. The high precision of these faint sources makes our network of standards ideally suited for any experiment that has very stringent requirements on flux calibration, such as studies of dark energy using the Large Synoptic Survey Telescope and the Wide-field Infrared Survey Telescope.en_US
dc.description.sponsorshipLasker Fellowship at the Space Telescope Science Institute; NSF [AST-1313006, AST-1815767]; NASA [NAS 5-26555]; National Aeronautics and Space Administration [NNX08AR22G]; National Science Foundation [AST-1238877]; Alfred P. Sloan Foundation; National Science Foundation; U.S. Department of Energy Office of Science; University of Arizona; Brazilian Participation Group; Brookhaven National Laboratory; Carnegie Mellon University; University of Florida; French Participation Group; German Participation Group; Harvard University; Johns Hopkins University; Lawrence Berkeley National Laboratory; Max Planck Institute for Astrophysics; Max Planck Institute for Extraterrestrial Physics; New Mexico State University; New York University; Ohio State University; Pennsylvania State University; University of Portsmouth; Princeton University; Spanish Participation Group; University of Tokyo; University of Utah; Vanderbilt University; University of Virginia; University of Washington; Yale University; FAS Division of Science, Research Computing Group at Harvard University; Instituto de Astrofisica de Canarias; Michigan State/Notre Dame/JINA Participation Group; [GO-12967]; [GO-13711]en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.relation.urlhttp://stacks.iop.org/0067-0049/241/i=2/a=20?key=crossref.4bcada5e5c9983656999cf69c506f70den_US
dc.rights© 2019. The American Astronomical Society. All rights reserved.en_US
dc.subjectcosmology: observationsen_US
dc.subjectmethods: data analysisen_US
dc.subjectstandardsen_US
dc.subjectsurveysen_US
dc.subjectwhite dwarfsen_US
dc.titleSubpercent Photometry: Faint DA White Dwarf Spectrophotometric Standards for Astrophysical Observatoriesen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.contributor.departmentUniv Arizona, Lunar & Planetary Laben_US
dc.identifier.journalASTROPHYSICAL JOURNAL SUPPLEMENT SERIESen_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 Supplement Series
dc.source.volume241
dc.source.issue2
dc.source.beginpage20
refterms.dateFOA2019-07-02T23:29:51Z


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