Project information
Physics of hot stars and stellar systems with hot components
- Project Identification
- GA205/02/0445
- Project Period
- 1/2002 - 12/2004
- Investor / Pogramme / Project type
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Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Science
- Cooperating Organization
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Astronomical Institute of the ASCR, v. v. i.
- Responsible person doc. RNDr. Jiří Kubát, CSc.
The present common project of Bmo and Ondoejov stellar astronomers is aimed at the layout of current thorny problems of the physics of hot stars and stellar systems containing hot components. First, we want to contribute to elucidation of mutual relation among magnetic field geometry, spectroscopic and photometric spots or belts occurring on the surface of chemically peculiar (CP) stars. For the localization of spots of chemical elements by the analysis of their line profile variations a special techniqu of Doppler imaging will be used. Particularly, by means of a detailed study of a prototype of cool CP2 stars CQ UMa we want to solve the puzzle of the variable depression in energy distribution around 410 nm, typical for such a type of CP stars. Various hypotheses explaining the origin of Be-phenomenon will be tested by the observation of several B star with emission lines in their spectra. From the both theoretical and observational point of view will be studied extended atmospheres of hot stars and th
Publications
Total number of publications: 34
2003
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Atmospheric Extinction at the Brno and Skalnaté Pleso Observatories. III. Model of extinction derived for Skalnaté Pleso from IHW/IAU medium-band photometrical observation of comets in 1985-90
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2003, volume: 33, edition: 1
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Improved period of a slowly rotating cool magnetic CP star HD 188 041
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2003, volume: 33, edition: 1
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Instability Caused by a Multicomponent Nature of Radiatively-driven Stellar Winds
Asteroseismology Across the HR Diagram, year: 2003
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Modeling of Multicomponent Radiatively Driven Stellar Winds Using a Newton-Raphson Method
Stellar Atmosphere Modeling, year: 2003
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On multicomponent effects in stellar winds of stars at extremely low metallicity
Astronomy and Astrophysics, year: 2003, volume: 35, edition: 402
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Preliminary analysis of light curves of the seven carbon stars
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2003, volume: 33, edition: 1
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Search for forced oscillations in binaries. IV. The eclipsing binary V436 Per revisited
Astronomy and Astrophysics, year: 2003, volume: 2003, edition: 408
2002
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Atmospheric Extinction Derived from Cometary Observations
Optics of Cosmic Dust, proceedings of a NATO Adv. Research Workshop Slovak Republic., year: 2002
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CQ UMa - hvězda na celý život
Proceedings of the Stellar Conference, Bezovec 2002, year: 2002
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Introduction of "Elementary" O-C Values and Their Applications
Proceedings of the 33rd Conference on Variable Stars Research, 8th-11th November 2001, Brno, year: 2002