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Active Late-Type Stellar Coronae: Hints for Flare Heating?

Published online by Cambridge University Press:  25 May 2016

M. Audard ,
M. Güdel ,
J. J. Drake ,
V. Kashyap  and
E. F. Guinan
M. Audard
Affiliation:
Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
M. Güdel
Affiliation:
Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
J. J. Drake
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, U.S.A.
V. Kashyap
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, U.S.A.
E. F. Guinan
Affiliation:
Dept. of Astronomy & Astrophysics, Villanova University, Villanova, PA 19085, U.S.A.

Abstract

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The Extreme Ultraviolet Explorer data archive has been used to study flare energy distributions and infer the role of flares in coronal heating. We have constructed flare number distributions as a function of observed EUV and X-ray emitted thermal energy. We find cumulative flare distributions of the form N(> E) ∝ E−α+1 with α ≍ 1.5–2.6. We present results in the context of spectral type classification.

Type
Part II: Posters
Information
Symposium - International Astronomical Union , Volume 195: Highly Energetic Physical Processes and Mechanisms , 2000 , pp. 377 - 378
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Audard, M., Güdel, M., Drake, J. J., & Kashyap, V. L. 2000, ApJ, submitted.Google Scholar
Audard, M., Güdel, M., & Guinan, E. F. 1999, ApJ, 513, L53.Google Scholar
Crawford, D. F., Jauncey, D. L., & Murdoch, H. S., 1970, ApJ, 162, 405.CrossRefGoogle Scholar
Drake, J. J., Kashyap, V., Audard, M., & Güdel, M., in preparation.Google Scholar
Hudson, H. S. 1991, Solar Phys., 133, 357.Google Scholar
Parker, E. N. 1988, ApJ, 330, 474.CrossRefGoogle Scholar