Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981xras.nasa...13l&link_type=abstract
In NASA. Goddard Space Flight Center X-ray Astronomy in the 1980's p 13-36 (SEE N82-26055 16-88)
Astronomy and Astrophysics
Astronomy
6
Binary Stars, Stars, Stellar Coronas, Stellar Spectra, Astronomical Observatories, Astronomical Spectroscopy, Hertzsprung-Russell Diagram, Stellar Evolution, X Ray Astronomy
Scientific paper
Information about the coronae of stars in different portions of the HR diagram, and how the characteristics of such coronae compare with what is known about the solar corona are reviewed. For each type of star, some unanswered questions and the generic type of X-ray instrument required to answer these questions are listed. The survey points out the critical need for a sensitive X-ray instrument with both moderate spectra resolution and imaging capability that can monitor selected targets for long periods of time. There is also a need for high spectral resolution, provided sensitivities can be improved greatly over Einstein, and near simultaneous ultraviolet spectroscopy.
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