Prof. Tomaz Zwitter: Present state and promises of the RAVE survey; Janez Kos: First results of Ice Cube detector
Tomaz Zwitter, Dept. Mathematics and Physics, University of Ljubljana
Present state and promises of the RAVE survey
I will review the current state of the RAdial Velocity Experiment
(RAVE), an ambitious ongoing spectroscopic survey which already secured
over a third million stellar spectra. For many of these spectra not only
the radial velocity but also stellar parameters have been determined from spectral analysis. This requires automated reduction, analysis and classification techniques which have to be checked against other spectroscopic and photometric datasets. The adopted solutions are important for any RAVE user who wants to take full advantage of the claimed rather impressive typical errors: less than 2 km/s error in radial velocity, 200 K in temperature, 0.3 dex in gravity and 0.2 dex in metallicity. The talk will also outline the
improvements planned for the next approximately yearly data releases.
Possibilities for RAVE's extension using a modern multiple-object
spectrograph will be discussed.
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Janez Kos, Dept. Mathematics and Physics, University of Ljubljana
First results of Ice Cube detector
I will present the first results of Ice Cube, the neutrino detector located on Antarctic station Amundsen-Scott. Since 2007 it has detected more than 5000 neutrinos and determined their sources on the sky with one degree accuracy. Their distribution agrees well with expected background except one point source which might be the ''first light'' of this telescope. When Ice Cube is finished in 2011 it will be a completely new tool to observe our universe.