Near‐Infrared Classification Spectroscopy:H‐Band Spectra of Fundamental MK Standards
Open Access
- 20 November 1998
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 508 (1), 397-409
- https://doi.org/10.1086/306402
Abstract
We present a catalog of H-band spectra for 85 stars of approximately solar abundance observed at a resolving power of 3000 with the KPNO Mayall 4 m Fourier Transform Spectrometer. The atlas covers spectral types O7-M5 and luminosity classes I-V as defined in the MK system. We identify both atomic and molecular indices and line ratios that are temperature and luminosity sensitive, allowing spectral classification to be carried out in the H-band. The line ratios permit spectral classification in the presence of continuum excess emission, which is commonly found in pre-main-sequence or evolved stars. We demonstrate that with spectra of R = 1000 obtained at signal-to-noise ratio >50, it is possible to derive spectral types within ±2 subclasses for late-type stars. These data are available electronically through the Astronomical Data Center in addition to being served on the World Wide Web.This publication has 26 references indexed in Scilit:
- H-Band Spectroscopic Classification of OB StarsThe Astronomical Journal, 1997
- The Deep Near Infrared Southern Sky Survey (DENIS)Published by Springer Science and Business Media LLC ,1997
- A Spectral Atlas of Hot, Luminous Stars at 2 MicronsThe Astrophysical Journal Supplement Series, 1996
- A library of H band stellar spectra for stellar population analysis purposesAstronomy and Astrophysics Supplement Series, 1996
- Medium-Resolution Near-Infrared (2.15-2.35 micron) Spectroscopy of Late-Type Main-Sequence StarsThe Astronomical Journal, 1995
- Model atmospheres for M (sub)dwarf stars. 1: The base model gridThe Astrophysical Journal, 1995
- The solar neighborhood, 1: Standard spectral types (K5-M8) for northern dwarfs within eight parsecsThe Astronomical Journal, 1994
- Improved Mass-Independent Dunham Parameters for the Ground State of CO and Calibration Frequencies for the Fundamental BandJournal of Molecular Spectroscopy, 1994
- Rotational analysis of hydroxyl vibration–rotation emission bands: Molecular constants for OH X2Π, 6 ≤ ν ≤ 10Canadian Journal of Physics, 1982
- Energy Level and Line Tables for One-Electron Atomic Spectra*Journal of the Optical Society of America, 1965