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Flare Spectra in Dwarf Stars

Published online by Cambridge University Press:  14 August 2015

Alfred H. Joy
Alfred H. Joy*
Affiliation:
Mount Wilson and Palomar Observatories, Pasadena, California, U.S.A.

Extract

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Observational evidence of transient flares which produce conspicuous changes in the total brightness and in the spectra of dwarf stars is limited, at present, to a small number of faint late-type stars. The outbursts take place with extraordinary rapidity and the duration is usually only a few minutes or hours. Accompanying spectral changes such as veiled and fuzzy absorption lines, greatly increased intensity of the bright lines of hydrogen and helium, and the appearance of an emission continuum shortward of λ 3750, have been reported.

Type
I. Instability in Dwarf Stars of Later Type: T Tauri Stars and Related Objects, and The UV Ceti Variables
Information
Symposium - International Astronomical Union , Volume 3: Non-Stable Stars , 1957 , pp. 31 - 34
Copyright
Copyright © Cambridge University Press 1957 

References

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