PPT-Superflares on Solar type Stars and Their Impacts on Habitability of

Exoplanets Kazunari Shibata Kwasan and Hida observatories Kyoto University Hiroaki Isobe Unit of Synergetic Studies for Space Kyoto University isobekwasankyoto uacjp COSPAR2014 . Daisaku Nogami (Kyoto University). 2014/01/23(Thu). Subaru User's Meeting 2013@NAOJ. Collaborators: K. Shibata, H. . Maehara. , S. Honda, T. . Shibayama. ,. S. . Notsu. , Y. . . on Solar type Stars and Their Impacts on Habitability of . Exoplanets. Kazunari. Shibata. . Kwasan. and . Hida. observatories, . Kyoto University. Hiroaki Isobe. Unit of Synergetic Studies for Space, Kyoto University. The Sun and the Stars. The Sun and the Stars. Limb darkening. The surface of the sun does not have uniform brightness, it appears bright toward the centre, darker towards the edges, and the colour is redder, an effect known as Limb darkening - why?. “Stars in transition”. Caroline Roberts. Polaris A and B, F-type stars; credit: NASA. Basic Information. 3% of solar neighborhood. Examples: Polaris, Dubhe, Canopus, Procyon. 6100-7400 K. 1.0-1.4 . Solar Physics. Course structure. My part - 12 lectures: week 1 – week 6. 6 assignments: . 5 (each week) to do at home (5% of final mark). 1 assignment – computational work (10%) ?. Exam: 70% two parts . ?. Implications from observations of solar-type stars . and historical records. Hiroaki Isobe. Graduate School of Integrated Advanced Studies . in Human Survivability, Kyoto University. Aknowledgements. Hugh Hudson. SSL, UC Berkeley and U. Of Glasgow. . 1. The Sun and its corona/wind. Solar . flares and . CMEs. Extreme events: new facts. “. Nanoflares. ”. The Sun itself. 2. It is not obvious from this sketch, but the very thin . The Sun and the Stars. Stellar Lifecycle. Starbirth. Young Stars. Globular Clusters. Star Death. Star Death. Star Death. Star Death. Aims and Objectives. To introduce you to the properties of . t. he Sun and the stars, and their evolution. 4. th. grade Science - Askew. STAR. A _________ is a hot sphere of gas that gives off energy and is held together by its own gravity.. Temperature. A star’s color reveals its _______________.. The reddish _________ is a cool star. . Protoplanetary. disk: condensation and accretion. Solar wind (beginning of fusion). Collisions continue. Planetary migration (orbits shifting). Late Heavy Bombardment (Hadean Era). Planetary Evolution. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not : Parts I. Extremely. . metal-poor. (EMP) . stars as . probes of . earliest. . heavy. . elements. . nucleosynthesis. Abundance. . curve. in . solar. system & neutron capture . processes. Daisaku Nogami (Kyoto University). 2014/01/23(Thu). Subaru User's Meeting 2013@NAOJ. Collaborators: K. Shibata, H. . Maehara. , S. Honda, T. . Shibayama. ,. S. . Notsu. , Y. .