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ASTA31
Stjärnatmosfärer (7,5 hp)


PROJEKTARBETEN

Varje kursdeltagare väljer ett fördjupningsämne, vilket dels redovisas muntligen inom kursen och dels dokumenteras som en artikel om ett tidigare inte behandlat uppslagsord i Wikipedia - http://www.wikipedia.org/ , förslagsvis på svenska eller engelska:  http://sv.wikipedia.org/wiki/Wikipedia:Deltagarportalen ; http://en.wikipedia.org/wiki/Wikipedia:Community_Portal

Arbetets omfattning beräknas till ca två arbetsveckor

EXEMPEL PÅ ARTIKLAR SKAPADE AV KURSDELTAGARNA VT2008:

Differential rotation in stars

Doppler imaging

Eddington luminosity

Hypergiant

Neutron-star oscillations

Starspot

SUGGESTED PROJECT THEMES

This list only gives examples; other topics are equally welcome.  In alphabetical order:

* Asteroseismology (ground-based and space-borne), and the mapping of also deeper stellar atmospheric layers

* High-resolution spectrometers for future Extremely Large Telescopes: What will become possible to observe with the E-ELT?

* Long-baseline optical interferometry: Disks and surfaces of many stars can already now be resolved with ground-based instruments

* Low-luminosity brown dwarfs: Their atmospheres may be dominated by clouds, “weather” and rain

* Most luminous stars in the Galaxy: How hot can they get before photon-gas pressure or other effects set a limit?

* Neutron star model atmospheres: Depend on their very thin surface layer; much of the emission comes out in X-rays

* Observing the Sun from different places: Aims and results from the ongoing space missions Ulysses and STEREO, and the future Solar Probe

* Solar surface imaging: Aims and results from current and planned ground-based telescopes, and from the current space mission Hinode (SOLAR-B)  

* Space-based stellar interferometry: Future space interferometers may be able to produce images of active regions across stellar surfaces

* Stellar activity cycles: Those corresponding to the solar 11-year cycle, and very different ones

* Stellar rotation: Solid-body and differential, of the surface and of the interior; and how that can be determined

* Stellar winds: Those analogous to the hot solar wind, those accelerated by stellar radiation, and those driven by heated dust



Lund Observatory, Box 43, SE-221 00 Lund, Sweden
Visiting address: Sölvegatan 27
Phone: +46 46 22 27300, Fax: +46 46 22 24614
Kursansvarig VT 2008: Dainis Dravins
Publisher: Bengt Söderström
E-mail: webmaster@astro.lu.se
Senast uppdaterad: 2009-03-21