Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators

We demonstrate an approach to determine spectral energy distribution (SED) templates that are accurate to the 1% level from the visible through the infrared for nearby (unextincted) solar-type stars. Our approach is based only on measurements of T _eff , log( g ), and M/H and the use of standard the...

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Main Authors: G. H. Rieke, Everett Schlawin, Charles R. Proffitt, Christopher Willmer
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astronomical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-3881/ad24f7
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author G. H. Rieke
Everett Schlawin
Charles R. Proffitt
Christopher Willmer
author_facet G. H. Rieke
Everett Schlawin
Charles R. Proffitt
Christopher Willmer
author_sort G. H. Rieke
collection DOAJ
description We demonstrate an approach to determine spectral energy distribution (SED) templates that are accurate to the 1% level from the visible through the infrared for nearby (unextincted) solar-type stars. Our approach is based only on measurements of T _eff , log( g ), and M/H and the use of standard theoretical SED models. The success of this approach confirms that the existing absolute calibration is likely to be accurate to this level throughout this spectral range. We then demonstrate how to measure and correct for extinction, allowing extension of this calibration approach to faint levels (and more distant stars). We provide template SEDs in digital form for 11 G-dwarf stellar calibrators.
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spelling doaj.art-130e57fa8bbd48c3adb36e4e2c981d6d2024-04-12T09:41:32ZengIOP PublishingThe Astronomical Journal1538-38812024-01-01167521310.3847/1538-3881/ad24f7Absolute Calibration. IV. Use of G-type Stars as Primary CalibratorsG. H. Rieke0https://orcid.org/0000-0003-2303-6519Everett Schlawin1https://orcid.org/0000-0001-8291-6490Charles R. Proffitt2https://orcid.org/0000-0001-7617-5665Christopher Willmer3https://orcid.org/0000-0001-9262-9997Department of Planetary Sciences, Steward Observatory, University of Arizona , Tucson, AZ 85721, USASteward Observatory, University of Arizona , Tucson, AZ 85721, USASpace Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21210, USASteward Observatory, University of Arizona , Tucson, AZ 85721, USAWe demonstrate an approach to determine spectral energy distribution (SED) templates that are accurate to the 1% level from the visible through the infrared for nearby (unextincted) solar-type stars. Our approach is based only on measurements of T _eff , log( g ), and M/H and the use of standard theoretical SED models. The success of this approach confirms that the existing absolute calibration is likely to be accurate to this level throughout this spectral range. We then demonstrate how to measure and correct for extinction, allowing extension of this calibration approach to faint levels (and more distant stars). We provide template SEDs in digital form for 11 G-dwarf stellar calibrators.https://doi.org/10.3847/1538-3881/ad24f7Fundamental parameters of starsInfrared photometryAstronomical techniques
spellingShingle G. H. Rieke
Everett Schlawin
Charles R. Proffitt
Christopher Willmer
Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
The Astronomical Journal
Fundamental parameters of stars
Infrared photometry
Astronomical techniques
title Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
title_full Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
title_fullStr Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
title_full_unstemmed Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
title_short Absolute Calibration. IV. Use of G-type Stars as Primary Calibrators
title_sort absolute calibration iv use of g type stars as primary calibrators
topic Fundamental parameters of stars
Infrared photometry
Astronomical techniques
url https://doi.org/10.3847/1538-3881/ad24f7
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