Optical and ultraviolet stellar flare spectroscopy
Abstract
As for solar flares, one of the most physically revealing types of data for M-dwarf flares are high-resolution, time-resolved spectra. Due to the intrinsically faint nature of the M-dwarf stars, spectroscopic data has tended to be of low spectral (approximately 5 A) and temporal (approximately 5 min) resolution. However, with the development of image intensified spectrographs and fast, efficient digital detectors, the last several years have seen the successful acquisition of both high time and spectral resolution M-dwarf flare spectra. Recent programs have also been successfully conducted using the International Ultraviolet Explorer satellite to obtain UV and EUV spectra of M-dwarf flares. These data reveal that dwarf M star flares are remarkably similar to solar flares in all aspects of their spectroscopic phenomenology.
- Publication:
-
IAU Colloq. 71: Activity in Red-Dwarf Stars
- Pub Date:
- 1983
- DOI:
- 10.1007/978-94-009-7157-8_25
- Bibcode:
- 1983ASSL..102..207W
- Keywords:
-
- Flare Stars;
- Stellar Flares;
- Stellar Spectra;
- Stellar Spectrophotometry;
- Ultraviolet Spectra;
- Balmer Series;
- Extreme Ultraviolet Radiation;
- High Resolution;
- Solar Flares;
- Spectral Line Width;
- Astrophysics