Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..522..389l&link_type=abstract
COSMIC EXPLOSIONS: Tenth Astrophysics Conference. AIP Conference Proceedings, Volume 522, pp. 389-399 (2000).
Astronomy and Astrophysics
Astrophysics
Stellar Activity
Scientific paper
Flares are often observed from a wide variety of stars that are called active by virtue of their rapid rotation, young age, and strong magnetic fields. Although the total energies of these flares cover many orders of magnitude in range, they typically follow a common pattern with impulsive and gradual stages and the distribution of energy among the different radiating channels is remarkably similar. The similar phenomenology points to a common scenario of magnetic reconnection, electron beam heating, and evaporation of the lower atmosphere followed by gradual cooling of the hot coronal plasma. The solar two-ribbon flare is often cited as the prototypical model. However, this conclusion must be viewed as tentative because the radiative response of an atmosphere to the impulsive input of energy could be the same for a variety of different energy input mechanisms. .
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