Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Ľ. Hambálek"'
Akademický článek
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Autor:
Ľ. Hambálek, Pavol A. Dubovský, Augustin Skopal, Sergey Yu. Shugarov, Štefan Parimucha, Drahomir Chochol
Publikováno v:
Proceedings of The Golden Age of Cataclysmic Variables and Related Objects V — PoS(GOLDEN2019).
On 2018, April 29, a bright classical nova (CN) Per 2018 was discovered. Its progenitor is a well-known dwarf nova V392 Per. In this contribution, we analyze $UBVR_{C}I_{C}$ photometry and optical spectroscopy of the CN V392 Per. From the $V$ light c
Autor:
R. Komžík, Ľ. Hambálek, Eike W. Guenther, Martin Vaňko, T. Pribulla, J. Nedoroščík, Emil Kundra, V. Perdelwitz
BD And is a fairly bright (V = 10.8), active and close (P = 0.9258 days) eclipsing binary. The cyclic variability of the apparent orbital period as well as third light in the light curves indicate the presence of an additional late-type component. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d425fbdf106f382cc7a1f60a4d3677a
http://arxiv.org/abs/2005.07494
http://arxiv.org/abs/2005.07494
Autor:
Ernst Paunzen, P. Zieliński, R. Komžík, Ľ. Hambálek, Emil Kundra, T. Pribulla, Z. Garai, Martin Vaňko, Jan Budaj, Juraj Zverko
Publikováno v:
Contributions of the Astronomical Observatory Skalnaté Pleso. 50
We present a long-term spectroscopic monitoring of seven CP stars in which binarity has either been established or signs of possible companions have been indicated. The primary goal of the survey was to examine the radial velocities (RVs) variations
Only a few exoplanets are known to orbit around fast rotating stars. One of them is XO-6b, which orbits an F5V-type star. Shortly after the discovery, we started multicolor photometric and radial-velocity follow-up observations of XO-6b, using the te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff516dde71ed2ce79d6ea79a742063c6
http://arxiv.org/abs/1911.07054
http://arxiv.org/abs/1911.07054
Publikováno v:
NASA Astrophysics Data System
We present a new analysis of the transit timing variations displayed by the extrasolar planet Kepler-410Ab. We obtained and improved orbital and physical parameters for the planet and analysed 70 transit times obtained by the Kepler satellite. In our
Akademický článek
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Autor:
Timothy Butterley, Ralph Neuhäuser, Richard Wilson, Martin Vaňko, S. Buder, R. Errmann, Z. Garai, T. O. B. Schmidt, Theodor Pribulla, Ľ. Hambálek, M. Seeliger, B. Dincel, S. P. Littlefair, V. S. Dhillon, A. Pannicke, Ch. Adam, Emil Kundra, J. G. Schmidt, Markus Mugrauer, H. Gilbert, St. Raetz, Ch. Ginski, M. Kitze, Aglae Kellerer, L. K. Hardy, J. Nedoroščík
Publikováno v:
Astronomische Nachrichten = Astronomical notes
We report results of the first five observing campaigns for the open stellar cluster NGC 7243 in the frame of project Young Exoplanet Transit Initiative (YETI). The project focuses on the monitoring of young and nearby stellar clusters, with the aim
Autor:
J. Nedoroščík, R. Komžík, Ľ. Hambálek, Z. Garai, V. Kollár, Martin Vaňko, Theodor Pribulla, M. Sekeráš, Emil Kundra
Publikováno v:
Astronomische Nachrichten. 336:682-689
A new fiber-fed spectrograph was installed at the 60 cm telescope of the Stara Lesna Observatory. The article presents tests of its performance (spectral resolution, signal-to-noise ratio, radial-velocity stability) and reports observations of select
Autor:
J. G. Schmidt, N. Pawellek, Ł. Bukowiecki, M. M. Hohle, Markus Mugrauer, V. Krushevska, S. Meibom, Ronny Errmann, D. Tomono, Ľ. Hambálek, V. Yotov, B. Dincel, H. Takahashi, V. S. Radeva, Hiroshi Terada, Andrew W. Howard, Katharina Schreyer, Ch. Graefe, Grzegorz Nowak, Gracjan Maciejewski, Guillermo Torres, Ch. Adam, Martin Vaňko, Laurence A. Marschall, Yumiko Oasa, L. Trepl, Ch. Ginski, T. Eisenbeiß, X. Zhou, Dinko Dimitrov, T. O. B. Schmidt, C. Marka, Emil Kundra, S.C.-L. Hu, A. Dathe, J. Budaj, T. Pribulla, St. Raetz, Cesar Briceno, C. Broeg, Wen Ping Chen, Alfredo Sota, A. Berndt, M. Kitze, Aglae Kellerer, Zhenyu Wu, M. Fernandez, Ralph Neuhäuser, R. Chini, Diana P. Kjurkchieva, M. Moualla, M. Seeliger, S. Fiedler
Publikováno v:
Astronomische Nachrichten. 335:345-356
We report our investigation of the first transiting planet candidate from the YETI project in the young (~4 Myr old) open cluster Trumpler 37. The transit-like signal detected in the lightcurve of the F8V star 2M21385603+5711345 repeats every 1.36489