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The zoo of starspots

Published online by Cambridge University Press:  26 August 2011

Klaus G. Strassmeier
Klaus G. Strassmeier*
Affiliation:
Astrophysical Institute Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany email: [email protected]
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Abstract

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Starspots are being observed with many different techniques but not always with coherent results. In particular not if model-dependent data analysis must be employed, e.g. through two-dimensional spot modelling of one-dimensional photometric light curves. I review the zoo of currently available physical spot parameters, i.e. their size, temperature and variability time scales, and also compare results from different techniques. Most of the current values come from Doppler imaging and multi-color photometry. I also list a few cases where starspot detections turned out to be very different to the solar analog.

Keywords

Magnetic fieldsstars: spotsstars: magnetic fieldsstars: rotationmethods: photometricmethods: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 174 - 180
Copyright
Copyright © International Astronomical Union 2011

References

Barnes, J. R. 2005, Mon. Not. Roy. Astron. Soc. 364, 537Google Scholar
Basri, G., Walkowicz, L. M., Batalha, N. et al. 2010, Astrophys. J. 713, 155CrossRefGoogle Scholar
Berdyugina, S. V. 2005, Living Rev. Solar Phys. 2CrossRefGoogle Scholar
Catalano, S., Biazzo, K., Frasca, A., Marilli, E., Messina, S., & Rodonó, M. 2002, Astron. Nachr. 323, 2603.0.CO;2-9>CrossRefGoogle Scholar
Frasca, A., Biazzo, K., Tas, G., Evren, S., & Lanzafama, A. C. 2008, Astron. Astrophys. 479, 557CrossRefGoogle Scholar
Fröhlich, H.-E., Küker, M., Hatzes, A. P., & Strassmeier, K. G. 2009, Astron. Astrophys. 506, 263CrossRefGoogle Scholar
Gray, D. F. & Johanson, H. L. 1991, Pub. Astron. Soc. Pac. 103, 439CrossRefGoogle Scholar
Hathaway, D. H. & Choudhary, D. P. 2008, Solar Phys. 250, 269CrossRefGoogle Scholar
Hendry, P. A. & Mochnacki, S. W. 2000, Astrophys. J. 531, 467CrossRefGoogle Scholar
Ishikawa, R. & Tsuneta, S. 2009, Astron. Astrophys. 495, 607CrossRefGoogle Scholar
Kloppenborg, B., Stencel, R., Monnier, J. D. et al. 2010, Nature 464, 870CrossRefGoogle Scholar
Lanza, A. F., Pagano, I., Leto, G., et al. 2009, Astron. Astrophys. 493, 193CrossRefGoogle Scholar
Moore, T. & Horwitz, J. 2007, Rev. Geophys. 45, RG3002CrossRefGoogle Scholar
O'Neal, D., Neff, J. E., Saar, S. H., & Cuntz, M. 2004, AJ 128, 1802CrossRefGoogle Scholar
Petrovay, K., Martínez Pillet, V. & vanDriel-Gesztelyi, L. Driel-Gesztelyi, L. 1999, SP 188, 315Google Scholar
Poe, C. H. & Eaton, J. A. 1985, Astrophys. J. 289, 644CrossRefGoogle Scholar
Pont, F., Gilliland, R. L., Moutou, C. et al. 2007, Astron. Astrophys. 476, 1347CrossRefGoogle Scholar
Rice, J. B., Strassmeier, K. G., & Kopf, M. 2011, Astrophys. J., 728, 69CrossRefGoogle Scholar
Savanov, I. S. & Strassmeier, K. G. 2008, Astron. Nachr. 329, 364CrossRefGoogle Scholar
Schrijver, C. J. & Zwaan, C. 2000, Solar and stellar magnetic activity, New York, CUPCrossRefGoogle Scholar
Silva-Valio, A., Lanza, A. F., Alonso, R., & Barge, P. 2010, Astron. Astrophys. 510, 25CrossRefGoogle Scholar
Strassmeier, K. G. 1999, Astron. Astrophys. 347, 225Google Scholar
Strassmeier, K. G. 2009, A&AR 17, 251Google Scholar
Strassmeier, K. G., Granzer, T., Weber, M. et al. , 2010, Adv. in Astr. 2010, p.19CrossRefGoogle Scholar
Strassmeier, K. G., Rice, J. B., Ritter, A. et al. 2005, Astron. Astrophys. 440, 1105CrossRefGoogle Scholar
Strassmeier, K. G., Washuettl, A., & Schwope, A. 2002, Astron. Nachr. 323, 1553.0.CO;2-Y>CrossRefGoogle Scholar
Vogt, S. S. 1979, Pub. Astron. Soc. Pac. 91, 616CrossRefGoogle Scholar
Wolter, U., Schmitt, J. H. M. M., & vanWyk, F. 2005, Astron. Astrophys. 435, 261CrossRefGoogle Scholar