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SCIROCCO+: Simulation Code of Interferometric-observations for ROtators and CirCumstellar Objects including Non-Radial Pulsations

Published online by Cambridge University Press:  13 March 2013

M. Hadjara ,
F. Vakili ,
A. Domiciano de Souza ,
F. Millour ,
R. Petrov ,
S. Jankov  and
P. Bendjoya
M. Hadjara
Affiliation:
Centre de Recherche en Astronomie, Astrophysique et Géophysique (CRAAG), Route de l’Observatoire, BP. 63, Bouzareah, 16340 Alger, Algérie. e-mail: m.hadjara@craag.dz Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
F. Vakili
Affiliation:
Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
A. Domiciano de Souza
Affiliation:
Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
F. Millour
Affiliation:
Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
R. Petrov
Affiliation:
Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
S. Jankov
Affiliation:
Astronomical Observatory of Belgrade, Volgina 7, PO Box 74, 11060 Belgrade, Serbia
P. Bendjoya
Affiliation:
Laboratoire J.-L. Lagrange, UMR 7293, Observatoire de la Côte d’Azur (OCA), Université de Nice-Sophia Antipolis (UNS), Centre National de la Recherche Scientifique (CNRS), Campus Valrose, 06108 Nice Cedex 2, France; e-mail: Massinissa.Hadjara@oca.eu
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Abstract

The VLTI (Very Large Telescope Interferometer) makes available milli-arcsecond-scale observations in the infrared. It offers new possibilities for constraining stellar structures such as polar jets, equatorial disks and rotationally-flattened photospheres of Be stars. Such constraints allows us to better estimate the stellar fundamental parameters and refine the mechanisms such as mass loss, pulsation and magnetism that govern the variability and evolution of these stars.

In this paper we present a chromatic semi-analytical model of fast rotators, which allows us to study the dynamics and the interaction between the photosphere and the wind of fast rotating stars of O, B, A and F spectral types. Our simple analytical model addresses the oblateness, inclination and position angle of the rotation axis of the star. It produces iso-velocity maps and intensity maps. It includes line profiles, limb-darkening and the von Zeipel effect and the non-radial pulsations.

SCIROCCO+: Simulation Code of Interferometric-observations for ROtators and CirCumstellar Objects including Non-Radial Pulsations, includes all the parameters cited above in order to be fast, powerful and light simulation tool in high angular resolution of rotating objects.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 59: New Concepts in Imaging: Optical and Statistical Models , 2013 , pp. 131 - 140
Copyright
© EAS, EDP Sciences 2013

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