weak-line star
(metal weak star, weak-lined star)
(star with faint spectral lines compared to its spectral class)
A weak-line star (or metal weak star or weak-lined star)
is a star with spectral lines fainter than
typical for its spectral type.
Stars with low metallicity, thus with less of some
of the associated absorption lines can fall in this
category.
(star type)
Further reading:
https://en.wikipedia.org/wiki/Glossary_of_astronomy#W
https://en.wikipedia.org/wiki/HD_133002
https://ui.adsabs.harvard.edu/abs/1958RA......5..323M/abstract
https://ui.adsabs.harvard.edu/abs/1986ApJ...309..260A/abstract
https://ui.adsabs.harvard.edu/abs/1995A%26A...299L..13N/abstract
Index