The Strömvil Photometric System: 1996 - 2006

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

A group of astronomers has been working on setting up and then using the Strömvil photometric system. The system was announced in Straižys et al. (1996). A summary of the work up to 2003 can be found in Sodžius et al. (2003). The major ability of the Strömvil system is that, from photoelectric measures alone one can determine the reddening, luminosity, gravity and metalicity of stars. With all the new surveys that have been made and ones yet to be made, such a system will be of great use to identify the nature of the new faint stars identified. In 2012 GAIA is planned to be launched. It will make astrometric, spectroscopic and photometric measures of hundreds of millions of stars. It has a narrow band filter system of 14 filters, seven of which are very similar to the Strömvil filters.The main observational programs at present are: 1. Setting up the primary standards. Lithuanian astronomers have been sent to Arizona to use University of Arizona telescopes on Mt. Lemmon. A list of 800 Northern Hemisphere standard stars has been published in Baltic Astronomy (Kazlauskas et al. 2005). 2: At the Vatican Advanced Technology Telescope on Mt. Graham Boyle and Philip have been making CCD Strömvil measures of open and globular clusters. 3: At Casleo, in Argentina, Philip and Pintado have been observing open and globular clusters with the 2.15 meter telescope.

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