Stellar Atmospheres Workshop VUB Final Announcement



Dear Colleagues,

We would like to invite you to attend the 2-day workshop on "Stellar Atmospheres in the Gaia Era: Quantitative Spectroscopy and Comparative Spectrum Modelling" in Brussels, Belgium, 23 & 24 June 2011.

Please find below the third and final announcement of this workshop about spectroscopy and spectrum modelling of cool (1st day) and hot (2nd day) stars. There are still a few time slots available for contributed talks and ample room for posters. The conference proceedings will be published by IOPCS.

The scientific program, paper abstracts, and more info are at http://great-esf.oma.be. The total number of officially registered participants is currently 44. Registration will close when 50 workshop participants have been registered.

In case you have questions please contact the workshop helpdesk at Great.esf at oma.be

			Cordially,

			Alex Lobel
			on behalf of the SOC and LOC
			Royal Observatory of Belgium




GREAT-ESF
Gaia Research for European Astronomy Training
European Science Foundation
Workshop

"Stellar Atmospheres in the Gaia Era: Quantitative Spectroscopy and Comparative Spectrum Modelling"

Thur 23 & Fri 24 June 2011, Free University Brussels - VUB, Belgium, Building D

http://great-esf.oma.be

Organized by:
Royal Observatory of Belgium
and
Free University Brussels - VUB, Belgium

Sponsored by:
European Science Foundation GREAT
and
Research Foundation - Flanders

FINAL ANNOUNCEMENT

The Gaia ESA mission in 2013 will observe a billion stellar objects in the Galaxy and provide spectrophotometric and high-resolution spectra of an unprecedented amount of stars observed with a space-based instrument. The confrontation of these data with theoretical models will drastically advance our understanding of the physics of stellar atmospheres. New stellar populations such as previously unknown emission line stars will be discovered, and fundamental questions such as the basic scenarios of stellar evolution will be addressed with Gaia data. Contemporary theoretical models of high-resolution stellar spectra are however seriously hampered by systematic uncertainties due to inadequate input physics and inaccurate or incomplete atomic data.

The 50-participant GREAT-ESF workshop in Brussels, Belgium, aims to discuss important topics in spectrum synthesis methods and detailed line profile calculations urgently needed for accurate modelling of Gaia spectra. The meeting will bring together scientists and students of the stellar physics communities investigating hot and cool star spectra. The 2-day workshop will address and identify key areas for the improvement of model spectra from various modern spectral synthesis codes required to determine reliable physical parameters of hot and cool stars. The accuracy of basic stellar atmospheric parameters Teff, log g, [Fe/H] obtained from different grids of high-resolution model spectra of hot and cool stars will be discussed to evaluate and enhance the quality of the input physics and atomic data.

The workshop will take place Thur 23 & Fri 24 June 2011 at the Free University Brussels (VUB) following the GREAT-ESF Plenary Meeting 4 (http://www.ast.cam.ac.uk/GREAT/events/Brussels-Jun11/) at Institut d'Astronomie et d'Astrophysique of the Universite' Libre de Bruxelles (ULB) on 21-23 June.

IMPORTANT: The number of workshop participants is limited to 50. There is currently room for 6 more participants. There is no workshop fee. Two lunch tickets of the VUB restaurant will be provided with your registration package. A preliminary list of talks and poster presentations with abstracts is at:

http://great-esf.oma.be/program.php

If you wish to present a contributed talk or poster forward the Title and Abstract through the online form:

http://great-esf.oma.be/registration.php

More details of the GREAT-ESF Workshop are at:  http://great-esf.oma.be
For questions contact the workshop helpdesk:  Great.esf at oma.be




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