MKCLASS: An expert stellar spectral classification system
MKCLASS is a program designed to classify stellar spectra on the MK system in
a way similar to humans, via direct comparison with MK standards. The
program is described in the following documents:
Before you attempt to use MKCLASS, you may first wish to download and install
the program XCLASS, which is a manual spectral classification program which
uses the same standard spectrum libraries as MKCLASS. See below for
documentation and source code for XCLASS.
v1.07: Sept 10, 2015. General improvement of the quality of spectral types
from B -- M, including improved recognition of carbon stars, Wolf Rayet stars,
white dwarfs and other non-MK types. Improved classification of chemically
peculiar stars. This is the version used to classify LAMOST spectra in the
Kepler field (submitted).
v1.05: July 14, 2014. Upgraded quality evaluation of late-K and M-type stars.
v1.04: July 9, 2014. Improvements in the determination of the metallicity
type of A and F-type stars.
v1.03: June 29, 2014. Introduced improvements in the identification of
emission-line stars, and in the luminosity classification of mid A-type stars.
Also introduced the use of an environment variable to take care of a
non-standard location for the mklib standards libraries.
v1.02: Improved the classification of metal-weak A-type stars.
v1.01: Original distribution
Two Digital Spectral Classification Atlases
The Digital Spectral Classification Atlas v 1.07 (R.O. Gray)
The Digital Spectral Classification Atlas (by R.O. Gray) is an atlas based
on spectra obtained
(mostly) on the Dark Sky Observatory 0.8-m GM spectrograph. The illustrations
are similar to those in the book Stellar Spectral Classification (Princeton University Press), and indeed, this atlas may be considered a synopsis of that book. The atlas may be downloaded
here:
An Atlas of LAMOST Low-Resolution Spectra of Chemically Peculiar Stars (Stefan Hümmerich)
This spectral atlas is based on low-resolution spectra from the LAMOST telescope in China. It covers the chemically peculiar stars of the upper main sequence,
including the Am, Ap, HgMn, He-peculiar and λ Bootis stars. This atlas
may be downloaded here:
