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
2008
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Rapid apsidal motion in eccentric eclipsing binaries: OX Cassiopeia, PV Cassiopeia, and CO Lacertae
Astronomy and Astrophysics, year: 2008, volume: 477, edition: 2
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Rotational periods of magnetic chemically peculiar stars
XVI. Ulusal astronomi kongresi, V. Ulusal ögrenci astronomi kongresi, year: 2008
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The extremely rapid rotational braking of the magnetic helium-strong star HD 37776
Astronomy and Astrophysics, year: 2008, volume: 2008, edition: 485
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The nature of the light variations of chemically peculiar stars
Ulusal astronomi kongresi, year: 2008
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The record-breaking rotational deceleration of the He strong CP star HD 37776 (V901 Ori)
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2008, volume: 38, edition: 2
2007
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New Minima Times of Selected Eclipsing Binaries
Information Bulletin on Variable Stars, year: 2007, volume: 2007, edition: 5777
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New period study of the eclipsing binary V865 Cygni
Astrophysics and Space Science, year: 2007, volume: 310, edition: 1-2
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Observational evidence of interacting processes in the system TW Draconis
Astronomical and astrophysical transactions : the journal of the Soviet Astronomical Society., year: 2007, volume: 26, edition: 1
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On-line database of photometric observations of magnetic chemically peculiar stars
Astronomische Nachrichten, year: 2007, volume: 328, edition: 1
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On-line database of photometric observations of magnetic chemically peculiar stars
Physics of Magnetic Stars, year: 2007