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Solar and Space Physics. Youra Taroyan Open Day, 7 July 2010 IMAPS, Aberystwyth University. Motivation 1. Understanding how the Sun affects the Earth and the near space environment (Space weather) 2. Natural plasma laboratory 3. The Sun as a star. Galileo’s XVII century drawings of sunspots.
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Solar and Space Physics Youra Taroyan Open Day, 7 July 2010 IMAPS, Aberystwyth University
Motivation1. Understanding how the Sun affects the Earth and the near space environment (Space weather)2. Natural plasma laboratory3. The Sun as a star
Earth Earth Spicules } ─ 0.8 Å } ─ 0.6 Å } ─ 0.4 Å } ─ 0.2 Å } Ha centre (BBSO) • reaching heights of up to 10 000 km • almost vertical (but not quite) • apparent vertical motions of 20 km/s • forming “bushes” at network • what drives spicules? • mass supply to corona and solar wind? • spicules ─ mottles ─ moss ? • relation to UV-Spicules?