Short Timescale Coronal Variability in Capella

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dc.creatorKashyap, Vinay L.
dc.creatorPosson-Brown, Jennifer
dc.date2007-09-19
dc.date.accessioned2026-07-07T08:30:55Z
dc.date.available2026-07-07T08:30:55Z
dc.descriptionWe analyze 205 ks of imaging data of the active binary, Capella, obtained with the Chandra High Resolution Camera Imager (HRC-I) to determine whether Capella shows any variability at timescales < 50 ks. We find that a clear signal for variability is present for timescales < 20 ks, and that the light curves show evidence for excess fluctuation over that expected from a purely Poisson process. This overdispersion is consistent with variability at the 2-7% level, and suggests that the coronae on the binary components of Capella are composed of low-density plasma and low-lying loops.
dc.descriptionsubmitted to The Astronomical Journal
dc.identifierhttps://arxiv.org/abs/0709.3093
dc.identifierhttp://arxiv.org/abs/0709.3093
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/138366
dc.subjectAstrophysics
dc.titleShort Timescale Coronal Variability in Capella
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