Gravitační pole a družicové metody (od prvního sputniku k družicovému gradientometru)
Kostelecký, J.; Klokočník, Jaroslav
2002 - Czech
Keywords:
gravitational field
Available at various institutes of the ASCR
Gravitační pole a družicové metody (od prvního sputniku k družicovému gradientometru)
Long-term activity of the X-ray source QR And / RX J0019.8+2156
Šimon, Vojtěch; Sobotka, P.; Marek, P.; Lehký, M.; Šmelcer, L.; Lomoz, Fr.
2002 - English
QR And has been monitored in the framework of the observational campaing which started in 1998. The authors resolved prominent variations of the orbital modulation which depend on the state of the long-term activity of the system.
Keywords:
X-ray sources; circumstellar matter; cataclysmic variables
Available at various institutes of the ASCR
Long-term activity of the X-ray source QR And / RX J0019.8+2156
QR And has been monitored in the framework of the observational campaing which started in 1998. The authors resolved prominent variations of the orbital modulation which depend on the state of the ...
Long-term variability of dwarf novae and soft X-ray transients
Šimon, Vojtěch
2002 - English
The results of analysis of Tc by the method of the O-C residuals is presented for a set of DN of various types and some SXTs.
Keywords:
X-ray sources; circumstellar matter; cataclysmic variables
Available at various institutes of the ASCR
Long-term variability of dwarf novae and soft X-ray transients
The results of analysis of Tc by the method of the O-C residuals is presented for a set of DN of various types and some SXTs.
Role profesora Buchara v astrometrii aneb od cirkumzenitálu k Hipparcosu
Vondrák, Jan
2002 - Czech
Keywords:
astrometry
Available at various institutes of the ASCR
Role profesora Buchara v astrometrii aneb od cirkumzenitálu k Hipparcosu
Some aspects of meteor head echos occurrence during Leonids 2000 and 2001
Nováková, Drahomíra; Pecina, Petr
2002 - English
Keywords:
head echoes; Leonids
Available at various institutes of the ASCR
Some aspects of meteor head echos occurrence during Leonids 2000 and 2001
Modernizace slunečních pĹístrojů HSFA observatoĹe Astronomického ústavu AV ČR v OndĹejově
Klvaňa, Miroslav; Bumba, Václav; Halík, M.; Ulrich, J.; Chvojka, M.
2001 - Czech
Dva horizontální sluneční pĹístroje ondĹejovské observatoĹe Astronomického ústavu AV ČR jsou modernizovány pro využití jak fotografická, tak zejména CCD kamer, a to s vysokým stupněm automatizace. Je diskutována koncepce rekonstrukce. The two horizontal solar telescopes with spectrographs HSFA at the OndĹejov observatory are modernized for exploitation of both their spectrographs as for the photographic observations, as well as for the registration of spectra with the CCD cameras or photomultipliers. The conception of the reconstruction, emphasizing the new possibilities of both instruments is discussed.
Keywords:
solar horizontal telescope; spectrograph
Available at various institutes of the ASCR
Modernizace slunečních pĹístrojů HSFA observatoĹe Astronomického ústavu AV ČR v OndĹejově
Dva horizontální sluneční pĹístroje ondĹejovské observatoĹe Astronomického ústavu AV ČR jsou modernizovány pro využití jak fotografická, tak zejména CCD kamer, a to s vysokým stupněm automatizace. Je ...
Spectroscopic study of omicron And
Budovičová, Andrea
2001 - English
Keywords:
Be stars; o And; Be hvězdy
Available at various institutes of the ASCR
Spectroscopic study of omicron And
Sluneční činnost jako důsledek vzniku sluneční soustavy
Čech, J.; Kotrč, Pavel; Křivský, L.; Klimeš, J.
2001 - Czech
Je diskutována podobnost délky oběhu planet a trvání period sluneční aktivity. A similarity of the orbital periods of planets and those iccuring in the solar activity is discussed.
Keywords:
solar system; sun; solar activity
Available at various institutes of the ASCR
Sluneční činnost jako důsledek vzniku sluneční soustavy
Je diskutována podobnost délky oběhu planet a trvání period sluneční aktivity.
A similarity of the orbital periods of planets and those iccuring in the solar activity is discussed.
Metodika vyhledávání rychlých změn jasu chromosféry v čáĹe H=alfa
Kupryakov, Yu. A.; Kotrč, Pavel; Havlíčková, E.
2001 - Czech
Je diskutován základ metodiky hledání korelací v rychlých změnách jasu chromosféry pĹi sluneční erupci. Methodology of searching fast changes in the chromosphere H-alpha brightness during solar flares is discussed.
Keywords:
Sun; solar activity; flares; h-alpha; changes
Available at various institutes of the ASCR
Metodika vyhledávání rychlých změn jasu chromosféry v čáĹe H=alfa
Je diskutován základ metodiky hledání korelací v rychlých změnách jasu chromosféry pĹi sluneční erupci....
Formation of eccentric disks around black holes
Hadrava, Petr; Řezáč, R.; Oestgaard, E.
2001 - English
The formation and evolution of eccentric disks around black holes due to explosion of a companion on an eccetric orbit is modeled by means of exact general-relativistic N-particle treatment. It is shown that in spite of the generally accepted view that the debris must be quickly smeared out to a circular accretion disk.
Keywords:
black holes; accretion disks; eccentric rings
Available at various institutes of the ASCR
Formation of eccentric disks around black holes
The formation and evolution of eccentric disks around black holes due to explosion of a companion on an eccetric orbit is modeled by means of exact general-relativistic N-particle treatment. It is ...
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