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Exoplanet Transients: Possible Variations in the Limb-Darkening Coefficients of Eclipsed Stars at Short Time Intervals

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Abstract

The interpretation of high-precision transit light curves of binary systems with exoplanets Kepler-5b, Kepler-6b, and Kepler-7b is performed for three different epochs. It has been demonstrated that the values of the stellar limb-darkening coefficients differ significantly for each epoch, while the geometric parameters for each epoch agree well with each other within the error margin. It is shown that reliable determination of the limb-darkening coefficients requires methods that would “clear” the observed transit light curves from effects caused by surface inhomogeneity.

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REFERENCES

  1. D. G. Koch, W. J. Borucki, J. F. Rowe, N. M. Batalha, et al., Astrophys. J. 713, L131 (2010).

    Article  ADS  Google Scholar 

  2. E. W. Dunham, W. J. Borucki, D. G. Koch, N. M. Batalha, et al., Astrophys. J. 713, L136 (2010).

    Article  ADS  Google Scholar 

  3. D. W. Latham, W. J. Borucki, D. G. Koch, T. M. Brown, et al., Astrophys. J. 713, L140 (2010).

    Article  ADS  Google Scholar 

  4. M. K. Abubekerov, N. Yu. Gostev, and A. M. Cherepashchuk, Astron. Rep. 52, 99 (2008).

    Article  ADS  Google Scholar 

  5. M. K. Abubekerov, N. Yu. Gostev, and A. M. Cherepashchuk, Astron. Rep. 53, 722 (2009).

    Article  ADS  Google Scholar 

  6. M. K. Abubekerov, N. Yu. Gostev, and A. M. Cherepashchuk, Astron. Rep. 54, 1105 (2010).

    Article  ADS  Google Scholar 

  7. M. K. Abubekerov and N. Yu. Gostev, Mon. Not. R. Astron. Soc. 432, 2216 (2013).

    Article  ADS  Google Scholar 

  8. M. K. Abubekerov and N. Yu. Gostev, Mon. Not. R. Astron. Soc. 459, 2078 (2016).

    Article  ADS  Google Scholar 

  9. M. K. Abubekerov and N. Yu. Gostev, Astron. Astrophys. 633, A96 (2020).

    Article  ADS  Google Scholar 

  10. N. Yu. Gostev, Astron. Rep. 55, 649 (2011).

    Article  ADS  Google Scholar 

  11. A. Claret, Astron. Astrophys. 428, 1001 (2004).

    Article  ADS  Google Scholar 

  12. P. Ioannidis and J. H. M. M. Schmitt, Astron. Astrophys. 594, A41 (2016).

    Article  ADS  Google Scholar 

  13. E. Aronson and N. Piskunov, Astrophys. J. 155, 208 (2018).

    ADS  Google Scholar 

  14. A. A. Cherenkov, D. V. Bisikalo, and A. G. Kosovichev, Mon. Not. R. Astron. Soc. 475, 605 (2018).

    Article  ADS  Google Scholar 

  15. T. Matsakos, A. Uribe, and A. Konigl, Astron. Astrophys. 578, A6 (2015).

    Article  ADS  Google Scholar 

  16. A. Claret, Astron. Astrophys. 506, 1335 (2009).

    Article  ADS  Google Scholar 

  17. E. Aronson and N. Piskunov, Astron. Astrophys. 630, A122 (2019).

    Article  ADS  Google Scholar 

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ACKNOWLEDGMENTS

The authors thank Academician A.M. Cherepashchuk for helpful advice and discussions on this study.

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Authors and Affiliations

  1. Moscow State University, Sternberg Astronomical Institute, 119234, Moscow, Russia

    M. K. Abubekerov & N. Yu. Gostev

Authors
  1. M. K. Abubekerov
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  2. N. Yu. Gostev
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Correspondence to M. K. Abubekerov or N. Yu. Gostev.

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Translated by M. Chubarova

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Abubekerov, M.K., Gostev, N.Y. Exoplanet Transients: Possible Variations in the Limb-Darkening Coefficients of Eclipsed Stars at Short Time Intervals. Astron. Rep. 64, 556–562 (2020). https://doi.org/10.1134/S1063772920080016

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  • DOI: https://doi.org/10.1134/S1063772920080016

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