Medium Resolution Spectral Library of Late-Type Stellar Templates in Near-Infrared Band

TL;DR

This paper provides a medium-resolution near-infrared spectral library of late-type stars (G, K, M) with detailed line identification, measurements, and publicly available data, enhancing stellar spectral analysis accuracy.

Contribution

It introduces a new spectral library at R=6000 for G, K, M stars in the near-infrared, with improved line property measurements and online accessibility.

Findings

Spectral resolution of R=6000 allows more precise line analysis.

Comparison with previous data validates measurement accuracy.

The library is publicly available for research use.

Abstract

We present medium resolution (R = 5000-6000) spectra in the near-infrared band, 1.4-1.8 microns, for template stars in G, K, and M types observed by the echelle spectrometer, IRCS, at the SUBARU 8.2 m telescope. The identification of lines is based on the spectra of Arcturus (K2 III) in the literature. We measured the equivalent of widths and compared our results to those of Meyer et al. (1998). We conclude that our spectral resolution (R = 6000) data can investigate more accurately the properties of lines in stellar spectra. The library of the template stellar spectra in ASCII format are available for download on the World Wide Web.