Solar and Space

Physics

Youra Taroyan

Open Day, 7 July 2010IMAPS, 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

XIX century drawings of a solar eclipse

Helioseismology

Spicules

H centre}}}}}

─ 0.2 Å

─ 0.6 Å

─ 0.4 Å

─ 0.8 Å

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?

(BBSO)

Earth

Earth

Prominences

Prominence eruption

Flares

The Solar Corona

Coronal heating problem

Coronal Loops

Solar minimum and maximum

       

Slow and Slow and Fast Fast Solar Solar WindWind