High-precision calculation of the light curve and its interpretation

Авторы: Абубекеров М.К., Гостев Н.Ю.
Журнал: Astronomy and Astrophysics
Том: 633
Год издания: 2020
Издательство: Springer Verlag
Местоположение издательства: Germany
DOI: 10.1051/0004-6361/201936731
Аннотация: We present a highly precise calculation of the theoretical light curve and its derivatives for a binary star-planet system in an elliptical orbit. We also describe an analytical fitting by limb-darkening coefficients to reduce the number of parameters for nonlinear fitting. We demonstrate the practical importance of the precision computation of theoretical light curves through the example of the interpretation of the light curve of HD209458 and the synthetic light curve. We also compare the results obtained using our algorithm to those provided by a lower-precision algorithm to demonstrate the benefits of computing with a higher precision. We discuss the capability of making more accurate conclusions concerning the agreement of the observed light curve with the adopted model.
Добавил в систему: Гостев Николай Юрьевич

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