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Application of Synthetic Doppler Tomography to Investigation of Eclipsing Polar V808 Aur

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Abstract

The paper describes three methods for constructing synthetic Doppler tomograms. These methods are applied to the results of MHD simulation of the V808 Aur polar, and the synthetic Doppler tomograms obtained are compared with observational Doppler tomograms. The features of tomograms obtained by different methods are compared. The use of the considered methods for detecting exoplanets and investigating their envelopes is discussed. When comparing observational tomograms and synthetic Doppler maps, it was shown that the method of mapping makes it possible to obtain intensity distributions in velocity space that are in better agreement with observational tomograms than their counterparts constructed by the convolution method.

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ACKNOWLEDGMENTS

This work was performed using the computing resources of the Interdepartmental Supercomputer Center of the Russian Academy of Sciences.Footnote 1 We are grateful to D.A. Kononov (Institute of Astronomy of the Russian Academy of Sciences) for providing the MEM2D code that implements the MLME method.

Funding

This work was supported by Government of the Russian Federation and the Ministry of Higher Education and Science of the Russian Federation, grant no. 075-15-2020-780 (no. 13.1902.21.0039).

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Authors and Affiliations

  1. Institute of Astronomy, Russian Academy of Sciences, 119017, Moscow, Russia

    A. Yu. Sytov & A. V. Sobolev

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  1. A. Yu. Sytov
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  2. A. V. Sobolev
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Correspondence to A. Yu. Sytov or A. V. Sobolev.

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Translated by E. Chernokozhin

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Sytov, A.Y., Sobolev, A.V. Application of Synthetic Doppler Tomography to Investigation of Eclipsing Polar V808 Aur. Astron. Rep. 66, 936–952 (2022). https://doi.org/10.1134/S106377292211018X

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