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Title:
Infrared Atlas of the Arcturus Spectrum, 0.9-5.3 microns
Authors:
Hinkle, Kenneth; Wallace, Lloyd; Livingston, William
Publication:
Publications of the Astronomical Society of the Pacific, v.107, p.1042 (PASP Homepage)
Publication Date:
11/1995
Origin:
PASP; KNUDSEN
PASP/ApJ Keywords:
INFRARED: STARS, STARS: INDIVIDUAL: ARCTURUS, STARS: ABUNDANCES
DOI:
10.1086/133660
Bibliographic Code:
1995PASP..107.1042H

Abstract

A spectral atlas of the infrared spectrum of the bright K 2 giant Arcturus has been completed using the 4 meter Mayall telescope and FTS. The 0.9-5.3 micron spectrum of Arcturus was observed at high signal-to-noise with a resolution of 100,000. Telluric lines were removed by using telluric transmission spectra generated from McMath-Pierce solar spectra or 4 meter lunar spectra. The spectrum of Arcturus was observed on two different dates selected to give large opposite heliocentric shifts. The spectra observed on the different dates have been independently corrected for telluric absorption with the result that the telluric spectrum has been effectively removed from all but the most obscure wavelengths of the Arcturus spectrum. We attempted to identify lines with central depths stronger than a few percent. Identifications seem well in hand with the unidentified lines apparantly atmoic in origin. The atlas is available either on an AAS CD-ROM or as an ASP monograph. (c) Astronomical Society of the Pacific Bergeron, et al., PHOTOMETRIC CALIBRATION OF HYDROGEN- AND HELIUM-RICH WHITE DWARF MODELS Bolometric corrections and color indices on various photometric systems are provided for an extensive grid of hydrogen- and helium-rich white dwarf model atmospheres. Absolute visual magnitudes, masses, and ages are also obtained for each model from detailed evolutionary cooling sequences appropriate for these stars. The results of our calculations are briefly compared with published observational material. These calculations can easily be extended to any given photometric system. (SECTION: Stars)

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