Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1093/mnrasl/slw095

Ключевые слова: hydrodynamics, planets and satellites: atmospheres

Аннотация: For the hot exoplanets CoRoT-24b and CoRoT-24c, observations have provided transit radii R-T of 3.7 +/- 0.4R(circle plus) and 4.9 +/- 0.5R(circle plus), and masses of = 5.7M(circle plus) and 28 +/- 11M(circle plus), respectively. We study their upper atmosphere structure and escape applying an hydrodynamic model. Assuming R-T +/- R-PL, where R-PL is the planetary radius at the pressure of 100 mbar, we obtained for CoRoT-24b unrealistically high thermally driven hydrodynamic escape rates. This is due to the planet's high temperature and low gravity, independent of the stellar EUV flux. Such high escape rates could last only for

Журнал: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

Выпуск журнала: Vol. 461, Is. 1

Номера страниц: 62-66

ISSN журнала: 00358711

Место издания: OXFORD

Издатель: OXFORD UNIV PRESS

• Lammer H. (Space Research Institute,Austrian Academy of Sciences)
• Luftinger T. (Institute for Astronomy,University of Vienna)
• Gudel M. (Institute for Astronomy,University of Vienna)
• Fossati L. (Space Research Institute,Austrian Academy of Sciences)
• Juvan I. (Space Research Institute,Austrian Academy of Sciences)
• Odert P. (Space Research Institute,Austrian Academy of Sciences)
• Cubillos P.E. (Space Research Institute,Austrian Academy of Sciences)
• Kislyakova K.G. (Space Research Institute,Austrian Academy of Sciences)
• Erkaev N.V. (Siberian Federal University)
• Guenther E. (Thuringer Landessternwarte Tautenburg)
• Johnstone C.P. (Institute for Astronomy,University of Vienna)

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