The Infrared Telescope Facility IRTF Spectral Library: Cool Stars - Astrophysics > Solar and Stellar AstrophysicsReportar como inadecuado




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Abstract: We present a 0.8 -5 micron spectral library of 210 cool stars observed at aresolving power of R = lambda - Delta lambda ~ 2000 with the medium-resolutioninfrared spectrograph, SpeX, at the 3.0 m NASA Infrared Telescope FacilityIRTF on Mauna Kea, Hawaii. The stars have well established MK spectralclassifications and are mostly restricted to near-solar metallicities. Thesample contains the F, G, K, and M spectral types with luminosity classesbetween I and V, but also includes some AGB, carbon, and S stars. In contrastto some other spectral libraries, the continuum shape of the spectra aremeasured and preserved in the data reduction process. The spectra areabsolutely flux calibrated using Two Micron All Sky Survey 2MASS photometry.Potential uses of the library include studying the physics of cool stars,classifying and studying embedded young clusters and optically obscured regionsof the Galaxy, evolutionary population synthesis to study unresolved stellarpopulations in optically-obscured regions of galaxies, and syntheticphotometry. The library is available in digital form from the IRTF website.



Autor: J.T. Rayner, M.C. Cushing, W.D. Vacca

Fuente: https://arxiv.org/







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