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Subject: ELFT HÍRADÓ
- From: ilka AT konkoly.hu (Kalman Belane)
- To: fizinfo AT lists.kfki.hu
- Subject: [Fizinfo] szeminariumi meghivo
- Date: Tue, 23 Jun 2009 15:37:24 +0200 (MEST)
- List-archive: <http://mailman.kfki.hu/pipermail/fizinfo>
- List-id: ELFT HÍRADÓ <fizinfo.lists.kfki.hu>
az MTA KTM Csillagászati Kutatóintézete
Elõadó: JAYMIE MATTHEWS
(University of British Columbia, Vancouver, Canada)
Cím: "The MOST microsat: A suitcase full of stars (and exoplanets)"
Size doesn't always matter. Canada's MOST (Microvariability &
Oscillations of STars) space telescope has an aperture of only 15 cm, and
the satellite has a mass of only 54 kg. But his 'orbiting suitcase' has
become heavily packed with astrophysical data since leaving home.
MOST is an ultraprecise stellar photometer, a pioneer for the French CoRoT
mission which has joined it in orbit two years ago, and for NASA's Kepler
satellite, which went into space in March. MOST's original one-year
mission was to conduct asteroseismology - probing stellar interiors via
frequency analysis of subtle surface vibrations with net luminosity
amplitudes as small as a few parts per million. After over five years in
orbit, MOST has extended its science to stellar activity, exo-Earth
hunting, and even exoplanetary weather.
The results include: a new perspective on stellar convection and its
connection to acoustic oscillations (p-modes); discovery of a new class of
pulsators - the SPBe stars; a surface rotation profile for another star
other than the Sun; measurements of the internal magnetic fields of stars;
and the first real measure of the albedo of an exoplanet - a gas giant
which is no more reflective than charcoal!
Az elõadás idõpontja: 2009. június 29, hétfõ, 14 óra
Helye: MTA KTM CSKI elõadóterme
Budapest, XII., Konkoly Thege M. út 15-17.
Patkós László s.k.
- [Fizinfo] szeminariumi meghivo, Kalman Belane, 06/23/2009
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