Late-Type Stars:  Then Again
* The launch of ASCA enabled the
first X-ray spectra of cosmic
sources with CCD resolution -
roughly 5 - 6 times better than the
resolution achievable with the
earlier prop counter experiments.
* Observations of stellar coronae
indicated the presence of multiple
temperature components, as well as
anomalous abundances for O, Ne,
Mg, Si, S, and Fe.
* This spectrum of RZ Cas (an Algol
binary) indicated subsolar
abundances by factors of 2 - 5, very
similar to what had been found for
RS CVn’s, but not for less active
single stars.
Singh, Drake, and White, 1995,
Ap.J.,445, 840.