Stellar spectroscopy in ground-based ultraviolet. III: Chromospheres and envelopes of cool stars

摘要

In historical perspective we discuss selected tasks in the studies of stellar chromospheres and circumstellar envelopes using spectroscopic methods in the ground-based ultraviolet. We illustrate our discussion by fragments of spectra that we took with the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences.