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Astrophysics > Solar and Stellar Astrophysics

arXiv:1508.03067 (astro-ph)
[Submitted on 12 Aug 2015]

Title:Eclipse Mapping: Astrotomography of Accretion Discs

Authors:Raymundo Baptista
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Abstract:The Eclipse Mapping Method is an indirect imaging technique that transforms the shape of the eclipse light curve into a map of the surface brightness distribution of the occulted regions. Three decades of application of this technique to the investigation of the structure, the spectrum and the time evolution of accretion discs around white dwarfs in cataclysmic variables have enriched our understanding of these accretion devices with a wealth of details such as (but not limited to) moving heating/cooling waves during outbursts in dwarf novae, tidally-induced spiral shocks of emitting gas with sub-Keplerian velocities, elliptical precessing discs associated to superhumps, and measurements of the radial run of the disc viscosity through the mapping of the disc flickering sources. This chapter reviews the principles of the method, discusses its performance, limitations, useful error propagation procedures, as well as highlights a selection of applications aimed at showing the possible scientific problems that have been and may be addresses with it.
Comments: To appear in "Astronomy at High Angular Resolution - A compendium of techniques in the visible and near-infrared", Springer ASSL series, eds. H.M.J. Boffin, L. Schmidtobreick, G. Hussain and J.P. Berger., 22 pages, 9 postscript figures. arXiv admin note: substantial text overlap with arXiv:astro-ph/0009472
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Instrumentation and Methods for Astrophysics (astro-ph.IM)
Report number: UFSC-AST-2015-B01
Cite as: arXiv:1508.03067 [astro-ph.SR]
  (or arXiv:1508.03067v1 [astro-ph.SR] for this version)
  https://doi.org/10.48550/arXiv.1508.03067

Submission history

From: Raymundo Baptista [view email]
[v1] Wed, 12 Aug 2015 20:52:38 UTC (716 KB)
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