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
2014
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Photoelectric search for peculiar stars in open clusters XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547 NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2
ASTRONOMY & ASTROPHYSICS, year: 2014, volume: 564, edition: APRIL, DOI
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Spectrophotometric analysis of the 5200A region for peculiar and normal stars
ASTRONOMY & ASTROPHYSICS, year: 2014, volume: 562, edition: February, DOI
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The first Delta a observations of three globular clusters
Monthly Notices of the Royal Astronomical Society, year: 2014, volume: 443, edition: 3, DOI
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The origin of light variability in Ap stars
Putting A Stars into Context: Evolution, Environment, and Related Stars, year: 2014
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V1010 Oph investigated by a cm-class telescope
Contributions of the Astronomical Observatory Skalnaté Pleso, year: 2014, volume: 43, edition: 3
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Variable stars in open clusters
Precision Asteroseismology, year: 2014
2013
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A photometric study of chemically peculiar stars with the STEREO satellites - II. Non-magnetic chemically peculiar stars
Monthly Notices of the Royal Astronomical Society, year: 2013, volume: 429, edition: 1, DOI
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Rediscussion of the Early Type Eclipsing Binary SV Cen
Central European Astrophysical Bulletin, year: 2013, volume: 37, edition: 1
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Search for rapid oscillations among seven northern CP stars
Information Bulletin on Variable Stars, year: 2013, volume: 2013, edition: 6058
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The (non-)variability of magnetic chemically peculiar candidates in the Large Magellanic Cloud
ASTRONOMY & ASTROPHYSICS, year: 2013, volume: 556, edition: 8, DOI