The international conference «Ultraviolet Universe 2010» (2nd NUVA
Symposium) took place in St.-Petersburg in the historical building of Saint Petersburg Scientific Center of the Russian Academy of Sciences
on May 31- June 3, 2010. The conference was organized by the Institute of Astronomy of the Russian Academy of Sciences
and the Main Astronomical Observatory of the Russian Academy of Sciences
in cooperation with NUVA
(Network for the Ultraviolet Astronomy) Community. 69 participants from 15 countries took part in the conference.
44 oral contributions as well as numerous posters were focused on the topics including stellar physics and stellar evolution, star formation, Milky Way and galaxies, interstellar and intergalactic medium, cosmology, stellar populations, UV instrumentation, planetary atmospheres, solar system and exoplanets.
Stellar physics and evolution part included such topics as ground-based near UV observations providing high-accuracy atlases of bright hot stars that serves as a perfect supplements for the future WSO-UV mission. A review of the recent NASA Swift UVOT (ultraviolet-optical telescope) observations of supernovae with the ideas for future WSO-UV mission was presented. A ctitical role of high resolution high S/N UV spectroscopy to check predictions of different physical processes acting in wide range of stars on HR diagram – accretion processes and disk formation in young stars, elemental diffusion in the atmospheres of Main Sequence magnetic stars, pulsations and the problem of the origin of the UV-upturn phenomenon in hot subdwarf (sdB) stars at the blue end of horizontal branch, composition and evolution of the white dwarf – was discussed. The possibilities of UV photometry (color-indices diagrams) in distinguishing between single and binary stars in unresolved systems were demonstrated.
During the conference the current status of UV-based astrophysical research was reviewed as well as the status of on-going projects: Galactic Evolution Explorer (GALEX) and the Space Telescope (HST) . Novel projects such as PLATO, Fresnel Interferometers or the status of small missions like TAUVEX were discussed. Special attention during the conference was given to the World Space Observatory-Ultraviolet (WSO-UV) - a 170 cm UV space telescope that is planned to be launched in 2014.
The conference brought together the different perspectives of the theoreticians and observers in order to identify the outstanding problems where we can make substantial progress in the next years due to new observing facilities such as WSO-UV, to promote a closer collaboration between theory and observations and to contribute to the definition of the core programme for the WSO-UV mission.