NASA NTRS · 19880030721
Rapid, low-level X-ray variability in active late-type dwarfs
Abstract
A sensitive new statistical analysis method was used to establish certain properties of quiescent X-ray variability in a sample of 19 late-type dwarfs. Sixteen stars proved to be significantly variable. The typical amplitude of the fluctuations was about 30 percent. Variability time scales ranged from about 150 s for 40 Eri C to lower limits as large as 2000 s. Neither the amplitudes nor the time scales of the X-ray variability appeared to depend on position along the main sequence.
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Ambruster, Carol W., Sciortino, Salvatore, Golub, L.. 1987-10-01. Rapid, low-level X-ray variability in active late-type dwarfs. https://ntrs.nasa.gov/citations/19880030721
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