Project information
New approaches to variable stars data processing and interpretation
- Project Identification
- GA205/06/0217
- Project Period
- 1/2006 - 12/2008
- Investor / Pogramme / Project type
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Czech Science Foundation
- Standard Projects
- MU Faculty or unit
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Faculty of Science
- prof. RNDr. Zdeněk Mikulášek, CSc.
- Mgr. Michal Janáček Ceniga, Ph.D.
- RNDr. Jan Janík, Ph.D.
- prof. Mgr. Jiří Krtička, Ph.D.
- Mgr. Blanka Kučerová, Ph.D.
- Mgr. Eva Mrázková
- Mgr. Martin Netolický
- doc. Mgr. Ondřej Pejcha, Ph.D.
- Mgr. Jan Polster, Ph.D.
- Mgr. Viktor Votruba, Ph.D.
- doc. RNDr. Marek Wolf, CSc.
- Petr Zasche, Ph.D.
- doc. RNDr. Miloslav Zejda, Ph.D.
- Mgr. Pavel Zvěřina
- Keywords
- variable stars, observation, data processing, photometry, spectroscopy. LSM, PCA, robust regression
In the last few decades it has boomed volume and common access to high-quality variable stars observing data; however the standard used methods of data processing and interpretation have lagged behind this progress. The proposed project aims to overtake this disaccord by application of three mutually cohesive plans. 1) Consequent application and development of modern trends in data processing, namely the robust regression (RR), principal component analysis (PCA) and their combinations, justified using of weights, introducing of new series of function apt for fitting of real light curves and spectral profiles, application of RR and PCA for light curves diagnostics, construction of (O-C) diagrams and improvements of variable stars ephemeris. 2) Using of modern approaches to solution of particular astrophysical problems as the disentangling of spectra of stellar systems, testing the stability of periods of magnetic CP stars, investigation of light variations of mirids or W UMa stars. 3) Presentation of new methods on astronomical meetings of all kind, in the education of students, supervision of student’s theses and edition of specialized textbooks.
Publications
Total number of publications: 47
2007
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On-line database of photometric observations of mCP stars
Year: 2007, type: Appeared in Conference without Proceedings
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Oscillations in TW Draconis
Odessa Astronomical Publications, year: 2007, volume: 20, edition: 1
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Principal component analysis - an efficient tool for variable stars diagnostics
Astronomical and astrophysical transactions : the journal of the Soviet Astronomical Society., year: 2007, volume: 26, edition: 1
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Progress in on-line photometric database of mCP stars
Year: 2007, type: Appeared in Conference without Proceedings
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Radial velocity determination by cross correlation function using a synthetic spectrum as the template and detecting component spectra in SB1 binaries
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2007, volume: 37, edition: 1
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The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution
Astronomy and Astrophysics, year: 2007, volume: 39, edition: 470
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The light variations of HD 37776 as a result of the uneven surface distribution of helium and silicon
Physics of Magnetic Stars, year: 2007
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The ZOO of uvby and Hp light curves of magnetic chemically peculiar stars
Physics of Magnetic Stars, year: 2007
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Záludnosti CCD fotometrie
Bezovec 2007, year: 2007
2006
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Apsidal motion in eccentric eclipsing binaries: CW Cephei, V478 Cygni, AG Persei, and IQ Persei
Astronomy and Astrophysics, year: 2006, volume: 456, edition: 3