期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 185, 期 2, 页码 289-432出版社
IOP PUBLISHING LTD
DOI: 10.1088/0067-0049/185/2/289
关键词
atlases; infrared: stars; stars: AGB and post-AGB; stars: carbon; stars: fundamental parameters; stars: late-type; techniques: spectroscopic
We present a 0.8-5 mu m spectral library of 210 cool stars observed at a resolving power of R equivalent to lambda/Delta lambda similar to 2000 with the medium-resolution infrared spectrograph, SpeX, at the 3.0 m NASA Infrared Telescope Facility (IRTF) on Mauna Kea, Hawaii. The stars have well-established MK spectral classifications and are mostly restricted to near-solar metallicities. The sample not only contains the F, G, K, and M spectral types with luminosity classes between I and V, but also includes some AGB, carbon, and S stars. In contrast to some other spectral libraries, the continuum shape of the spectra is measured and preserved in the data reduction process. The spectra are absolutely flux calibrated using the Two Micron All Sky Survey photometry. Potential uses of the library include studying the physics of cool stars, classifying and studying embedded young clusters and optically obscured regions of the Galaxy, evolutionary population synthesis to study unresolved stellar populations in optically obscured regions of galaxies and synthetic photometry. The library is available in digital form from the IRTF Web site.
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