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Multicolour Photometric System for Investigation of the Galaxy Population

Published online by Cambridge University Press:  12 April 2016

V. Straižys
V. Straižys*
Affiliation:
Institute of Theoretical Physics and Astronomy, Goštauto 12, Vilnius 2600, Lithuania

Abstract

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Many photometric systems for classification of stars have been proposed. However, not all of them are equally suitable for investigation of distant and reddened stars without additional information from their spectra. Earlier it was shown that the Vilnius photometric system is optimum for purely photometric classification of stars in spectral types, luminosities, metallicities and peculiarity types, when interstellar reddening is present. When realized with a CCD detector, the system permits to classify stars down to 17 mag with a 1.5 m class telescope or down to 20 mag with a 4 m telescope. A possibility of realizing the system with the WF camera of the Hubble Space Telescope is investigated. The problem of unification of broad-band and medium-band photometric systems is discussed.

Type
Session 1 Photometric Systems
Information
International Astronomical Union Colloquium , Volume 136: Stellar Photometry – Current Techniques and Future Developments , 1993 , pp. 47 - 50
Copyright
Copyright © C.J. Butler and I. Elliottt 1993

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