Special Astrophysics Seminar: Can superflares occur on the Sun ?

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• Prof. Kazunari Shibata
• Friday 27 May 2016, 15:00-16:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

If you have a question about this talk, please contact Andrew Hillier.

Solar flares are explosion in the solar atmosphere with energy 10²⁹ -10³² erg, and sometimes cause troubles and disasters in our modern civilization. Recent observations by Kepler satellite revealed the occurrence of many superflares (with energy of 10³³ -10³⁵ erg) on solar type stars, including some Sun-like stars rotating as slow as the Sun. Statistical data analysis suggests that superflares with energy of 10³⁴ erg occur once in 800 yr, and superflares with 10³⁵ erg occur once in 5000 yr. We shall discuss whether superflares with energy more than 10³³ erg can occur on the Sun, and discuss what will happen on the Earth if such superflares occur on the Sun.

This talk is part of the DAMTP Astrophysics Seminars series.

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