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

Abstract 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 stan...

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Bibliographic Details
Published inThe Astronomical journal Vol. 167; no. 5; pp. 213 - 229
Main Authors Rieke, G. H., Schlawin, Everett, Proffitt, Charles R., Willmer, Christopher
Format Journal Article
LanguageEnglish
Published Madison The American Astronomical Society 01.05.2024
IOP Publishing
Subjects
Astronomical techniques
Calibration
Fundamental parameters of stars
G stars
Infrared photometry
Spectral energy distribution
Stars
Templates
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Summary:Abstract 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.
Bibliography:AAS48992
Laboratory Astrophysics, Instrumentation, Software, and Data
ISSN:0004-6256
1538-3881
DOI:10.3847/1538-3881/ad24f7