Chromospheric activity in M giants

Details Chromospheric activity in M giants Chromospheric activity in M giants

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..441s&link_type=abstract

In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 441-444 (SEE N85-20961 1

Astronomy and Astrophysics

Astronomy

Chromosphere, Giant Stars, Iue, Late Stars, Ultraviolet Spectra, Calcium, Line Spectra, Magnesium, Magnetic Fields, Mass, Stellar Rotation, Temperature Distribution, Titanium Oxides

Scientific paper

Low resolution IUE spectra were obtained for fifteen cool giant stars ranging in spectral type from K4.8 thru M5.9. These spectra were used to examine chromospheric activity and to evaluate the extent to which nonradiative heating affects the upper levels of cool giant photospheres. The stars were chosen because of their well determined wide band colors, TiO band strengths (from wing photometry), angular diameters (determined from lunar occultations), apparent bolometric fluxes as seen from Earth, and effective preliminary analysis of these observations is presented.

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