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Reconstruction of an Accretion Disk Image in AU Mon from CoRoT Photometry

Published online by Cambridge University Press:  23 April 2012

P. Mimica  and
K. Pavlovski
P. Mimica
Affiliation:
Department of Astronomy and Astrophsycs, University of Valencia, 46 100 Burjassot, Spain
K. Pavlovski
Affiliation:
Department of Physics, Faculty of Science, University of Zagreb, 10 000 Zagreb, Croatia Astrophysics Group, EPSAM, Keele University, Staffordshire, BG5 5JR, UK
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Abstract

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The long-period binary system AU Mon was photometrically observed on-board the CoRoT satellite in a continuous run of almost 60 days long which has covered almost 5 complete cycles. Unprecedented sub milimag precision of CoRoT photometry reveals all complexity of its light variations in this, still active mass-transfer binary system. We present images of an accretion disk reconstructed by eclipse mapping, and an optimization of intensity distribution along disk surface. Time resolution and accurate CoRoT photometric measurements allow precise location of spatial distribution of ‘hot’ spots on the disk, and tracing temporal changes in their activity. Clumpy disk structure is similar to those we detected early for another W Serpentis binary W Cru (Pavlovski, Burki & Mimica, 2006, A&A, 454, 855).

Keywords

accretion disks(stars:) binaries: eclipsingstars: individual (AU Mon)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 63 - 64
Copyright
Copyright © International Astronomical Union 2012

References

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