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Irish Astr.J., 27(2),1130, (2000) D.GARCIA ALVAREZ MODELLING OF FLARES ON LATETYPE STARS
 

Summary: Irish Astr.J., 27(2),11­30, (2000) D.GARCIA ALVAREZ
MODELLING OF FLARES ON LATE­TYPE STARS
D.GARCIA ALVAREZ
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
email: dga@star.arm.ac.uk
ABSTRACT. Stellar flare research is an exciting and rapidly developing field of astrophysics. The Sun is an invaluable proving
ground to test predictions of flare theories and to develop analytical techniques for future stellar applications, because the lack
of spatial resolution for stellar flares pushes us to extrapolate models of solar flares to the stellar situation. Stellar flares can
sometimes be several orders of magnitude more energetic than their solar counterparts, which may suggest that new phenomena
are taking place which are not observed on the Sun. Because of widely different energy ranges and atmospheric properties, the
investigation of stellar flares is seen as a potential breakthrough in our understanding of flares as a whole. Because flarelike
physical processes occur in diverse astrophysically interesting regimes, the field of solar and stellar flares, and therefore, their
modelling can serve as an astrophysical touchstone.
1. INTRODUCTION
Stellar flare research is an exciting and rapidly developing field
of astrophysics. Flares are important to astrophysics because
they originate in out­of­equilibrium magnetic field­plasma in­
teractions rather than in gravitational, thermonuclear, or ra­
diative processes in near equilibrium. Flare stars constitute
about ¸90% of the stars in the Galaxy. The Sun is an invalu­

  

Source: Armagh Observatory

 

Collections: Physics