An XSPEC model to explore spectral fetures from black-hole sources
Dovčiak, Michal; Karas, Vladimír; Martocchia, A.; Matt, G.; Yaqoob, T.
2004 - English We report on a new general relativistic computational model enhancing, in various respects, the capability of presently available tools for fitting spectra of X-ray sources. Popisujeme nový software pro výpočty obecně relativistických vlivů ve spektrech rentgenových zdrojů. Nový program významně rozšiřuje dosavadní možnosti. Keywords: black holes; accretion; relativity Available at various institutes of the ASCR An XSPEC model to explore spectral fetures from black-hole sources

We report on a new general relativistic computational model enhancing, in various respects, the capability of presently available tools for fitting spectra of X-ray sources....

Dovčiak, Michal; Karas, Vladimír; Martocchia, A.; Matt, G.; Yaqoob, T.
Astronomický ústav, 2004

Stellar orbits in the gravitational field of a massive torus near a galactic centre
Šubr, L.; Karas, Vladimír
2004 - English We further examine orbits of satellite stars in the gravitational field of a dark supermassive compact body, which is surrounded by a self-gravitating accretion disc or a massive molecular torus. Tato práce je pokračováním studia drah satelitů v gravitační poli superhmotného kompaktního tělesa a akrečního disku nebo molekulárního toru. Keywords: black holes; accretion; relativity Available at various institutes of the ASCR Stellar orbits in the gravitational field of a massive torus near a galactic centre

We further examine orbits of satellite stars in the gravitational field of a dark supermassive compact body, which is surrounded by a self-gravitating accretion disc or a massive molecular ...

Šubr, L.; Karas, Vladimír
Astronomický ústav, 2004

Two dimensional spectroscopy of an irregular sunspot
Jurčák, Jan; Sobotka, Michal; Pillet, M.
2003 - English Available at various institutes of the ASCR Two dimensional spectroscopy of an irregular sunspot

Jurčák, Jan; Sobotka, Michal; Pillet, M.
Astronomický ústav, 2003

Digital spectrometer for radio astronomical observations
Jiřička, Karel; Montebugnoli, S.
2003 - English Available at various institutes of the ASCR Digital spectrometer for radio astronomical observations

Jiřička, Karel; Montebugnoli, S.
Astronomický ústav, 2003

Duplicity of epsilon Persei confirmed
Libich, Jan; Harmanec, Petr; Yang, S.; Hadrava, Petr; Koubský, Pavel; Škoda, Petr; Šlechta, Miroslav; Aerts, C.; de Cat, P.
2003 - English Available at various institutes of the ASCR Duplicity of epsilon Persei confirmed

Libich, Jan; Harmanec, Petr; Yang, S.; Hadrava, Petr; Koubský, Pavel; Škoda, Petr; Šlechta, Miroslav; Aerts, C.; de Cat, P.
Astronomický ústav, 2003

Cosmological ideas in the 16th century
Hadrava, Petr; Hadravová, Alena
2003 - English The influence of Giordano Bruno on extending the scope of early modern cosmology behing the borders of Solar system is studies, expecially the Kepler's thoughts on the limits of the Universe. V práci je studován vliv Giordana Bruna na rozšíření obzoru raně novověké kosmologie za hranice Sluneční soustavy, zejména Keplerovy úvahy o konečnosti vesmíru. Keywords: Kepler-Olbers' paradox; history of astronomy; history of science Available at various institutes of the ASCR Cosmological ideas in the 16th century

The influence of Giordano Bruno on extending the scope of early modern cosmology behing the borders of Solar system is studies, expecially the Kepler's thoughts on the limits of the Universe....

Hadrava, Petr; Hadravová, Alena
Astronomický ústav, 2003

W Serpentins-like stars: the case of UX monocerotis
Ondřich, D.; Harmanec, Petr
2003 - English Available at various institutes of the ASCR W Serpentins-like stars: the case of UX monocerotis

Ondřich, D.; Harmanec, Petr
Astronomický ústav, 2003

Statistical analysis of the high-frequency solar radio bursts
Mészárosová, Hana
2002 - English Keywords: statistical analysis; solar radio bursts Available at various institutes of the ASCR Statistical analysis of the high-frequency solar radio bursts

Mészárosová, Hana
Astronomický ústav, 2002

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 ...

Šimon, Vojtěch; Sobotka, P.; Marek, P.; Lehký, M.; Šmelcer, L.; Lomoz, Fr.
Astronomický ústav, 2002

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.

Šimon, Vojtěch
Astronomický ústav, 2002