Show simple item record

dc.contributor.authorNarayan, Gautham
dc.contributor.authorAxelrod, T.
dc.contributor.authorHolberg, J. B.
dc.contributor.authorMatheson, Thomas
dc.contributor.authorSaha, A.
dc.contributor.authorOlszewski, E.
dc.contributor.authorClaver, J.
dc.contributor.authorStubbs, C. W.
dc.contributor.authorBohlin, R. C.
dc.contributor.authorDeustua, S.
dc.contributor.authorRest, A.
dc.date.accessioned2016-11-03T02:07:27Z
dc.date.available2016-11-03T02:07:27Z
dc.date.issued2016-05-05
dc.identifier.citationTOWARD A NETWORK OF FAINT DA WHITE DWARFS AS HIGH-PRECISION SPECTROPHOTOMETRIC STANDARDS 2016, 822 (2):67 The Astrophysical Journalen
dc.identifier.issn1538-4357
dc.identifier.doi10.3847/0004-637X/822/2/67
dc.identifier.urihttp://hdl.handle.net/10150/621236
dc.description.abstractWe present the initial results from a program aimed at establishing a network of hot DA white dwarfs to serve as spectrophotometric standards for present and future wide-field surveys. These stars span the equatorial zone and are faint enough to be conveniently observed throughout the year with large-aperture telescopes. The spectra of these white dwarfs are analyzed in order to generate a non-local-thermodynamic-equilibrium model atmosphere normalized to Hubble Space Telescope colors, including adjustments for wavelength-dependent interstellar extinction. Once established, this standard star network will serve ground-based observatories in both hemispheres as well as space-based instrumentation from the UV to the near IR. We demonstrate the effectiveness of this concept and show how two different approaches to the problem using somewhat different assumptions produce equivalent results. We discuss the lessons learned and the resulting corrective actions applied to our program.
dc.description.sponsorshipNASA [NAS5-26555]; NASA Office of Space Science [NNX13AC07G]; Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina) [GS-2013A-Q-8, GS-2013B-Q-22]en
dc.language.isoenen
dc.publisherIOP PUBLISHING LTDen
dc.relation.urlhttp://stacks.iop.org/0004-637X/822/i=2/a=67?key=crossref.e75b1976b05877b5cdc758f9e0532142en
dc.rights© 2016. The American Astronomical Society. All rights reserved.en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectcosmology: observationsen
dc.subjectmethods: data analysisen
dc.subjectsurveysen
dc.subjectwhite dwarfsen
dc.titleTOWARD A NETWORK OF FAINT DA WHITE DWARFS AS HIGH-PRECISION SPECTROPHOTOMETRIC STANDARDSen
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Steward Observen
dc.contributor.departmentUniv Arizona, Lunar & Planetary Laben
dc.identifier.journalThe Astrophysical Journalen
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
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-08-20T11:13:12Z
html.description.abstractWe present the initial results from a program aimed at establishing a network of hot DA white dwarfs to serve as spectrophotometric standards for present and future wide-field surveys. These stars span the equatorial zone and are faint enough to be conveniently observed throughout the year with large-aperture telescopes. The spectra of these white dwarfs are analyzed in order to generate a non-local-thermodynamic-equilibrium model atmosphere normalized to Hubble Space Telescope colors, including adjustments for wavelength-dependent interstellar extinction. Once established, this standard star network will serve ground-based observatories in both hemispheres as well as space-based instrumentation from the UV to the near IR. We demonstrate the effectiveness of this concept and show how two different approaches to the problem using somewhat different assumptions produce equivalent results. We discuss the lessons learned and the resulting corrective actions applied to our program.


Files in this item

Thumbnail
Name:
apj_822_2_67.pdf
Size:
2.152Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record