Current State of the Modelling of Photospheric Activity

  • A. F. Lanza
Part of the Astrophysics and Space Science Proceedings book series (ASSSP, volume 31)


I briefly review the current state of the modelling of photospheric activity based on the high-precision optical light curves obtained with MOST, CoRoT, and Kepler. These models can be used to search for active longitudes where activity is preferentially concentrated, estimate the amplitude of stellar differential rotation, and look for short-term activity cycles as, e.g., in the case of CoRoT-2. In the case of a late-type star accompanied by a transiting hot Jupiter, the small light modulations observed during transits when a dark spot is occulted by the disc of the planet are also briefly considered. They can be used to derive information on individual active regions as well as on stellar rotation and the spin–orbit alignment of the system.


Light Curve Differential Rotation Sunspot Group Active Longitude Spot Modelling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The author wishes to thank the SOC of the 20th Stellar Pulsation Conference for their kind invitation to attend the Conference and their nice hospitality in Granada, and Prof. B. Mosser for interesting discussions.


  1. 1.
    Amado, P.J., Zboril, M.: A&A 381, 517 (2002)ADSCrossRefGoogle Scholar
  2. 2.
    Baliunas, S.L., Donahue, R.A., Soon, W.H., et al.: ApJ 438, 269 (1995)ADSCrossRefGoogle Scholar
  3. 3.
    Chaplin, W.J., Bedding, T.R., Bonanno, A., et al.: ApJL 732, L5 (2011)ADSCrossRefGoogle Scholar
  4. 4.
    Croll, B., Walker, G.A.H., Kuschnig, R., et al.: ApJ 648, 607 (2006)ADSCrossRefGoogle Scholar
  5. 5.
    Fares, R., Donati, J.-F., Moutou, C., et al.: MNRAS 398, 1383 (2009)ADSCrossRefGoogle Scholar
  6. 6.
    Fröhlich, C., Lean, J.: Astron. Astrophys. Rev. 12, 273 (2004)ADSCrossRefGoogle Scholar
  7. 7.
    García, R.A., Mathur, S., Salabert, D., et al.: Science 329, 1032 (2010)ADSCrossRefGoogle Scholar
  8. 8.
    Gizon, L., Solanki, S.K.: ApJ 589, 1009 (2003)ADSCrossRefGoogle Scholar
  9. 9.
    Hempelmann, A., Donahue, R.A.: A&A 322, 835 (1997)ADSGoogle Scholar
  10. 10.
    Jiménez-Reyes, S.J., García, R.A., Jiménez, A., Chaplin, W.J.: ApJ 595, 446 (2003)ADSCrossRefGoogle Scholar
  11. 11.
    Lanza, A.F.: Ap&SS 336, 303 (2012)ADSCrossRefGoogle Scholar
  12. 12.
    Lanza, A.F., Bonomo, A.S., Rodonò, M.: A&A 464, 741 (2007)ADSCrossRefGoogle Scholar
  13. 13.
    Lanza, A.F., Pagano, I., Leto, G., et al.: A&A 493, 193 (2009a)ADSCrossRefGoogle Scholar
  14. 14.
    Lanza, A.F., Aigrain, S., Messina, S., et al.: A&A 506, 255 (2009b)ADSCrossRefGoogle Scholar
  15. 15.
    Lanza, A.F., Bonomo, A.S., Moutou, C., et al.: A&A 520, A53 (2010)ADSCrossRefGoogle Scholar
  16. 16.
    Lanza, A.F., Bonomo, A.S., Pagano, I., et al.: A&A 525, A14 (2011)ADSCrossRefGoogle Scholar
  17. 17.
    Lou, Y.-Q.: ApJ 540, 1102 (2000)ADSCrossRefGoogle Scholar
  18. 18.
    Messina, S., Guinan, E.F.: A&A 409, 1017 (2003)ADSCrossRefGoogle Scholar
  19. 19.
    Moss, D., Sokoloff, D., Lanza, A.F.: A&A 531, A43 (2011)ADSCrossRefGoogle Scholar
  20. 20.
    Mosser, B., Michel, E., Appourchaux, T., et al.: A&A 506, 33 (2009a)ADSCrossRefGoogle Scholar
  21. 21.
    Mosser, B., Baudin, F., Lanza, A.F., et al.: A&A 506, 245 (2009b)ADSCrossRefGoogle Scholar
  22. 22.
    Nutzman, P.A., Fabrycky, D.C., Fortney, J.J.: ApJL 740, L10 (2011)ADSCrossRefGoogle Scholar
  23. 23.
    Oliver, R., Ballester, J.L., Baudin, F.: Nature 394, 552 (1998)ADSCrossRefGoogle Scholar
  24. 24.
    Rodonó, M., Cutispoto, G., Pazzani, V., et al.: A&A 165, 135 (1986)ADSGoogle Scholar
  25. 25.
    Rucinski, S.M., Walker, G.A.H., Matthews, J.M., et al.: PASP 116, 1093 (2004)ADSCrossRefGoogle Scholar
  26. 26.
    Salabert, D., García, R.A., Pallé, P.L., Jiménez-Reyes, S.J.: A&A 504, L1 (2009)ADSCrossRefGoogle Scholar
  27. 27.
    Sanchis-Ojeda, R., Winn, J.N. (2011) arXiv:1107.2920Google Scholar
  28. 28.
    Silva-Valio, A., Lanza, A.F.: A&A 529, A36 (2011)ADSCrossRefGoogle Scholar
  29. 29.
    Silva-Valio, A., Lanza, A.F., Alonso, R., Barge, P.: A&A 510, A25 (2010)ADSCrossRefGoogle Scholar
  30. 30.
    Strassmeier, K.G., Bopp, B.W.: A&A 259, 183 (1992)ADSGoogle Scholar
  31. 31.
    Torres, C.A.O., Ferraz Mello, S.: A&A 27, 231 (1973)ADSGoogle Scholar
  32. 32.
    Vogt, S.S., Penrod, G.D.: PASP 95, 565 (1983)ADSCrossRefGoogle Scholar
  33. 33.
    Zaqarashvili, T.V., Carbonell, M., Oliver, R., Ballester, J.L.: ApJ 709, 749 (2010)ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.INAF-Osservatorio Astrofisico di CataniaCataniaItaly

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