H-alpha photometry of dwarf K and M stars

• 1 July 1987
• journal article
• Published by American Astronomical Society in The Astronomical Journal
• Vol. 94, 150
• https://doi.org/10.1086/114457

Abstract

Keywords

• HERTZSPRUNG RUSSELL
• MAIN SEQUENCE
• EQUIVALENT WIDTH
• VARIABLE STARS
• INDEXATION
• EMISSION LINE