Project information
Multispektrální proměnnost horkých hvězd a její příčiny
- Project Identification
- GAP209/12/0217
- Project Period
- 1/2012 - 12/2014
- 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.
Ackoliv je multispektraln rotacne podmnena promennost horkych hvezd znama jiz po mnoho desetilet,
jej prciny zustavaly az donedavna nejasne. Tento problem se zacal vyjasnovat pote, co jsme aplikovali po-
krocile modely atmosfer hvezd pro predpovezen svetelne promennosti pochazejc z povrchu hvezd posetych
skvrnami. Tento vyzkum vyustil v soucasnou predstavu o promennosti techto hvezd, podle ktere je promen-
nost zpusobena prerozdelenm toku zaren z blzke ultraalove do vzdalene ultraalove oblasti a do oblasti
viditelne a infracervene. Ackoliv byl tento model overen porovnanm s pozorovanymi svetelnymi krivkami,
zasadn overen stale chyb: porovnan ultraalove a infracervene promennosti. Navc byla promennost stu-
dovana pro prlis malo hvezd s pouze omezenym rozmezm parametru. Analyza fotometrickych dat rotujcch
hvezd s povrchovymi skvrnami dovoluje urcen jejich rotacnch period, ktere jsou jednemi z nejdulezitejsch
vyvojovych parametru. Nase analyza promennosti techto hvezd dovol odhalit zmeny rotacnch period s bezprkladnou presnost.
Publications
Total number of publications: 39
2013
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The New Photometric Study of a Possible Three-body System AV CMi
Central European Astrophysical Bulletin, year: 2013, volume: 37, edition: 1
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Towards a photometric metallicity scale for open clusters
ASTRONOMY & ASTROPHYSICS, year: 2013, volume: 557, edition: 9, DOI
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Ultraviolet and visual flux and line variations of one of the least variable Bp stars HD 64740
Astronomy and Astrophysics, year: 2013, volume: 556, edition: léto, DOI
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V2107 Cyg: A Young Cyg OB1 Member Binary System With A Beta Cep Type Pulsating Component
European Astronomical Society Publications Series, year: 2013, volume: 64, edition: 1, DOI
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Visual Minima Timings of Eclipsing Binaries: To Use or not to Use?
Central European Astrophysical Bulletin, year: 2013, volume: 37, edition: 1
2012
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A photometric study of chemically peculiar stars with the STEREO satellites - I. Magnetic chemically peculiar stars
Monthly Notices of the Royal Astronomical Society, year: 2012, volume: 420, edition: 1, DOI
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Binary Systems Within Star Clusters
FROM INTERACTING BINARIES TO EXOPLANETS: ESSENTIAL MODELING TOOLS, year: 2012
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BVRI photometry of NGC 3231, NGC 7055, and NGC 7127 (Research Note)
Astronomy and Astrophysics, year: 2012, volume: 542, edition: June, DOI
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Catalogue of variable stars in open cluster fields
Astronomy and Astrophysics, year: 2012, volume: 548, edition: December, DOI
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Developments of the Open Cluster Database WEBDA
STAR CLUSTERS IN THE ERA OF LARGE SURVEYS: PROCEEDINGS OF SYMPOSIUM 5 OF JENAM 2010, year: 2012