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
2012
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Eclipsing binaries visual minima timings: To use or not to use?
Year: 2012, type:
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MUNI FITS Archive
Year: 2012, type: Appeared in Conference without Proceedings
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MUNI FITS Photometric Archive
Year: 2012, type: Appeared in Conference without Proceedings
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Period changes of the sample of eclipsing binaries with active chromospheres
Advances in Astronomy and Space Physics, year: 2012, volume: 2, edition: 2
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Pitfalls of eclipsing binary data processing
Year: 2012, type: Appeared in Conference without Proceedings
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Spectroscopic Binaries Among lambda Bootis-type Stars
FROM INTERACTING BINARIES TO EXOPLANETS: ESSENTIAL MODELING TOOLS, year: 2012
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The Hvar survey for roAp stars (Research Note) I. The survey observations
Astronomy and Astrophysics, year: 2012, volume: 542, edition: June, DOI
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THE PHOTOMETRIC STUDY OF A NEGLECTED NEAR CONTACT BINARY: BS VULPECULAE
Astronomical Journal, year: 2012, volume: 144, edition: 2, DOI
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TV Boo - třikrát proměnná hvězda
Year: 2012, type: Appeared in Conference without Proceedings