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  1. Article

    Václav Bumba (1925 – 2018)

    Pavel Kotrč, Petr Heinzel, Michal Sobotka, Pavel Ambrož… in Solar Physics (2018)

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    Simultaneous Observations of Solar Prominence Oscillations Using Two Remote Telescopes

    We present the first results of the joint Polish–Czech observational campaign devoted to simultaneous observations of prominence oscillations. As was shown earlier by other authors, not all of the observed per...

    Maciej Zapiór, Pavel Kotrč, Paweł Rudawy, Ramon Oliver in Solar Physics (2015)

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    The 1 October 2001 Eruptive Prominence: Observed and Modeled Structures

    Using TRACE 171 Å image observations and Hα spectra and images observed at the Ondřejov Observatory, the October 1, 2001, eruptive prominence is studied. The evolution of this prominence is described and veloc...

    Marian Karlický, Pavel Kotrč, Yurij A. Kupryakov in Solar Physics (2002)

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    Axially-symmetric Velocities in the 15 May 2000 Eruptive Prominence

    Large Doppler velocities with unique, almost regular elliptical features were observed in the Hα spectra of the May 15, 2000 eruptive prominence. These features were interpreted in the frame of axially symmetr...

    Marian Karlický, Pavel Kotrč, Yurij A. Kupryakov in Solar Physics (2001)

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    OPTICAL AND RADIO SPECTRAL ANALYSIS OF A RECURRENT SURGE

    Coordinated observations obtained at Meudon (MSDP) and at Ondřejov provide surge spectra in optical range (Hα, Hβ, Hγ, Hµ, Ca H and K lines) and in radio range. The MSDP data allowed us to follow the time evol...

    PAVEL KOTRČ, BRIGITTE SCHMIEDER, MARIAN KARLICKÝ, PETR HEINZEL in Solar Physics (1997)

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    On the nature of bright rims of filaments

    A filament with a very bright rim was observed in the Hα line on May 11, 1989, using the Meudon spectroheliograph. Absolute calibration of the spectroheliogram allows us to express the intensities in particular s...

    Petr Heinzel, Pavel Kotrč, Zadig Mouradian, Georgi T. Buyukliev in Solar Physics (1995)

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    On the occurrence of blue asymmetry in chromospheric flare spectra

    We present observations of optical spectra of a flare in which blue line asymmetry was seen for more than 4 min close to the flare onset. The maximum blue asymmetry coincided with the maximum of a hard X-ray a...

    Petr Heinzel, Marian Karlický, Pavel Kotrč, Zdeněk Švestka in Solar Physics (1994)

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    Book reviews

    C. Schrijver, Pavel Kotrč in Solar Physics (1993)