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Pathways For Observing Stellar Surfaces Using 3D Hydrodynamical Simulations Of Evolved Stars
Univ Cote Azur, Observ Cote Azur, Lab Lagrange, CNRS, Bd Observ,CS 34229, F-06304 Nice 4, France..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
2015 (English)In: Physics Of Evolved Stars: A Conference Dedicated To The Memory Of Olivier Chesneau, 2015, 237-242 p.Conference paper (Refereed)Text
Abstract [en]

Evolved stars are among the largest and brightest stars and they are ideal targets for the new generation of sensitive, high resolution instrumentation that provides spectrophotometric, interferometric, astrometric, and imaging observables. The interpretation of the complex stellar surface images requires numerical simulations of stellar convection that take into account multi-dimensional time-dependent radiation hydrodynamics with realistic input physics. We show how the evolved star simulations are obtained using the radiative hydrodynamics code CO5BOLD and how the accurate observables are computed with the post-processing radiative transfer code OPTIM3D. The synergy between observations and theoretical work is supported by a proper and quantitative analysis using these simulations, and by strong constraints from the observational side.

Place, publisher, year, edition, pages
2015. 237-242 p.
, EAS Publications Series, ISSN 1633-4760 ; 71-72
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:uu:diva-284912DOI: 10.1051/eas/1571053ISI: 000370302700052ISBN: 978-2-7598-1907-2OAI: oai:DiVA.org:uu-284912DiVA: diva2:920959
Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau, JUN 08, 2015, Nice, FRANCE
Available from: 2016-04-19 Created: 2016-04-19 Last updated: 2016-04-19Bibliographically approved

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Freytag, Bernd
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Department of Physics and Astronomy
Astronomy, Astrophysics and Cosmology

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