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of 10
pro vyhledávání: '"Hambálek, Lubomír"'
Autor:
Kundra, Emil, Hambálek, Ľubomír, Vanaverbeke, Siegfried, Dubovský, Pavol, Logie, Ludwig, Rau, Steve, Dubois, Franky
The post-common envelope binary V471 Tauri has been an object of interest for decades. V471 Tau shows various phenomena due to its evolutionary state and unique properties, e.g. its magnetic accretion and eclipse timing variation (ETV). Previous auth
Externí odkaz:
http://arxiv.org/abs/2210.01464
Autor:
Vaňko, Martin, Pribulla, Theodor, Gajdoš, Pavol, Budaj, Ján, Zverko, Juraj, Paunzen, Ernst, Garai, Zoltán, Hambálek, Lubomír, Komžík, Richard, Kundra, Emil
There is a small group of peculiar early-type stars on the main sequence that show different rotation velocities from different spectral lines. This inconsistency might be due to the binary nature of these objects. We aim to verify this hypothesis by
Externí odkaz:
http://arxiv.org/abs/2204.03325
Autor:
Chochol, Drahomír, Shugarov, Sergey, Hambálek, Ľubomír, Skopal, Augustin, Parimucha, Štefan, Dubovský, Pavol
Publikováno v:
2019, Proceedings of Science GOLDEN2019, 29
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
Externí odkaz:
http://arxiv.org/abs/2007.13337
Autor:
Garai, Zoltán, Pribulla, Theodor, Komžík, Richard, Kundra, Emil, Hambálek, Ľubomír, Szabó, Gyula M.
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:
http://arxiv.org/abs/1911.07054
Autor:
Gajdoš, Pavol, Vaňko, Martin, Pribulla, Theodor, Dupkala, Daniel, Šubjak, Ján, Skarka, Marek, Kabáth, Petr, Hambálek, Ľubomír, Parimucha, Štefan
Publikováno v:
Mon Not R Astron Soc (2019) 484 (3): 4352-4359
Transit timing variations of Kepler-410Ab were already reported in a few papers. Their semi-amplitude is about 14.5 minutes. In our previous paper, we found that the transit timing variations could be caused by the presence of a stellar companion in
Externí odkaz:
http://arxiv.org/abs/1901.08485
We present a study of the long-term optical variability of young T Tauri stars using previously unpublished data from the SuperWASP project. Other publicly available photometry from NSVS and the NASA K2 mission were used to check and supplement our r
Externí odkaz:
http://arxiv.org/abs/1811.08655
Publikováno v:
Mon Not R Astron Soc (2017) 469 (3): 2907-2912
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
Externí odkaz:
http://arxiv.org/abs/1704.05663
Autor:
Virnina, Natalia A., Kocian, Radek, Hambalek, Lubomir, Dubovsky, Pavol, Andronov, Ivan L., Kudzej, Igor
Two recently discovered variable stars (CzeV134 = GSC 3682 0018 = USNO-A2.0 1425-1870026 and CzeV135 = GSC 3682 2051 = USNO-A2.0 1425-1825909 = V1094 Cas), which have been identified in the field of the W UMa variable star BS Cas, are studied in the
Externí odkaz:
http://arxiv.org/abs/1202.1939
Autor:
Hambálek Lubomír
Publikováno v:
EPJ Web of Conferences, Vol 101, p 06031 (2015)
We have selected several Kepler objects with potentially the deepest secondary eclipses. By combination of many single phased light-curves (LCs) we have produced a smooth LC with a larger SNR and made the secondary eclipses more distinct. This allowe
Externí odkaz:
https://doaj.org/article/312db4fab1cf4ae6a8187c41043fb8a8
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