AD Leo from X-Rays to Radio: Are Flares Responsible for the Heating of Stellar Coronae?

Simple item page
dc.creatorGuedel, M.
dc.creatorAudard, M.
dc.creatorGuinan, E. F.
dc.creatorDrake, J. J.
dc.creatorKashyap, V. L.
dc.creatorMewe, R.
dc.creatorAlekseev, I. Y.
dc.date2000-11-30
dc.date.accessioned2026-07-07T01:56:46Z
dc.date.available2026-07-07T01:56:46Z
dc.descriptionIn spring 1999, a long coordinated observing campaign was performed on the flare star AD Leo, including {\it EUVE}, {\it BeppoSAX}, the {\it VLA}, and optical telescopes. The campaign covered a total of 44 days. We obtained high-quality light curves displaying ongoing variability on various timescales, raising interesting questions on the role of flare-like events for coronal heating. We performed Kolmogorov-Smirnov tests to compare the observations with a large set of simulated light curves composed of statistical flares that are distributed in energy as a power law of the form ${\rm d}N/{\rm d}E \propto E^{-α}$ with selectable index $α$. We find best-fit $α$ values slightly above a value of 2, indicating that the extension of the flare population toward small energies could be important for the generation of the overall X-ray emission.
dc.descriptionTo appear in Proc. of "X-ray astronomy 2000",(Palermo Sep. 2000), Eds. R. Giacconi, L. Stella, S. Serio, ASP Conf. Series, in press
dc.identifierhttps://arxiv.org/abs/astro-ph/0011572
dc.identifierhttp://arxiv.org/abs/astro-ph/0011572
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2119
dc.subjectAstrophysics
dc.titleAD Leo from X-Rays to Radio: Are Flares Responsible for the Heating of Stellar Coronae?
dc.typetext

Files

Collections

arXiv