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Polarization of the transiting planetary system of the K dwarf HD 189733

Published online by Cambridge University Press:  10 November 2011

Nadia M. Kostogryz ,
Taras M. Yakobchuk ,
Olexandr V. Morozhenko  and
Anatolij P. Vidmachenko
Nadia M. Kostogryz
Affiliation:
Main Astronomical Observatory NAS of Ukraine, 27, Zabolotnoho str., Kyiv, 03680, Ukraine email: kosn@mao.kiev.ua
Taras M. Yakobchuk
Affiliation:
Main Astronomical Observatory NAS of Ukraine, 27, Zabolotnoho str., Kyiv, 03680, Ukraine email: kosn@mao.kiev.ua
Olexandr V. Morozhenko
Affiliation:
Main Astronomical Observatory NAS of Ukraine, 27, Zabolotnoho str., Kyiv, 03680, Ukraine email: kosn@mao.kiev.ua
Anatolij P. Vidmachenko
Affiliation:
Main Astronomical Observatory NAS of Ukraine, 27, Zabolotnoho str., Kyiv, 03680, Ukraine email: kosn@mao.kiev.ua
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Abstract

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We model the polarization in the system HD 189733 resulting from the planetary transit. This system has a short-period (2.2d) Jupiter-like planet with the radii ratio Rp/R* = 0.148, orbiting at the distance of 0.031 AU around the star.

We calculated the polarization of the system HD189733 to be 0.022% at the limb, which is consistent with the recent observational data. We suggest the shapes of the polarization parameters curves to be used for deriving the planet orbit inclination at the near limb transits as an alternative to standard transit method.

Keywords

polarizationmethods: numericalplanetary systems

References

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