Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Budaj, Ján"'
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
Publikováno v:
A&A, 660, A72 (2022)
WD 1145+017 is the first white dwarf known to be orbited by disintegrating exoasteroids. It is a DBZ-type white dwarf with strongly variable broad circumstellar lines and variable shallow UV transits. Various models of the dust clouds and gaseous rin
Externí odkaz:
http://arxiv.org/abs/2203.07520
Autor:
Vos, Joris, Pelisoli, Ingrid, Budaj, Jan, Reindl, Nicole, Schaffenroth, Veronika, Bobrick, Alexey, Geier, Stephan, Hermes, J. J., Nemeth, Peter, Østensen, Roy, Reding, Joshua S., Uzundag, Murat, Vuckovic, Maja
Publikováno v:
A&A 655, A43 (2021)
We present the discovery of J22564-5910, a new type of hot subdwarf (sdB) which shows evidence of gas present in the system and has shallow, multi-peaked hydrogen and helium lines which vary in shape over time. All observational evidence points towar
Externí odkaz:
http://arxiv.org/abs/2106.03363
Autor:
Budaj, Jan
Publikováno v:
Radiative Signatures from the Cosmos, ASP Conference Series, Vol. 519, p.87; 2019ASPC..519...87B
Program SHELLSPEC is designed to calculate light curves, spectra, and images of interacting binaries and extra-solar planets immersed in a moving gaseous or dusty circumstellar matter. It solves simple radiative transfer along the line of sight in 3D
Externí odkaz:
http://arxiv.org/abs/2105.00346
Autor:
Maliuk, Andrii, Budaj, Jan
The spatial distribution of exoplanets in the Galaxy is important for our understanding of planet formation and evolution. We aim to determine the spatial gradients of exoplanet occurrence in the Solar neighbourhood and in the vicinity of open cluste
Externí odkaz:
http://arxiv.org/abs/2002.10823
Thousands of transiting exoplanets have been discovered to date, thanks in great part to the {\em Kepler} space mission. As in all populations, and certainly in the case of exoplanets, one finds unique objects with distinct characteristics. Here we w
Externí odkaz:
http://arxiv.org/abs/2002.10370
Autor:
Pigulski, Andrzej, Kaminska, Monika K., Kaminski, Krzysztof, Paunzen, Ernst, Budaj, Jan, Pribulla, Theodor, Torres, Pascal J., Stateva, Ivanka, Niemczura, Ewa, Skarka, Marek, Alicavus, Filiz Kahraman, Sekeras, Matej, van der Swaelmen, Mathieu, Vanko, Martin, Vanzi, Leonardo, Borisova, Ana, Helminiak, Krzysztof, Alicavus, Fahri, Dimitrov, Wojciech, Tokarek, Jakub, Derekas, Aliz, Fernandez, Daniela, Garai, Zoltan, Napetova, Mirela, Komzik, Richard, Merle, Thibault, Ratajczak, Milena, Richardson, Noel D., Team, Ritter Observing, Kambe, Eiji, Ukita, Nobuharu
We report the discovery of two massive eccentric systems with BRITE data, $\tau$ Ori and $\tau$ Lib, showing heartbeat effects close to the periastron passage. $\tau$ Lib exhibits shallow eclipses that will soon vanish due to the apsidal motion in th
Externí odkaz:
http://arxiv.org/abs/1801.05985
Akademický článek
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Publikováno v:
2015,MNRAS,454,2
There has been growing observational evidence for the presence of condensates in the atmospheres and/or comet-like tails of extrasolar planets. As a result, systematic and homogeneous tables of dust properties are useful in order to facilitate furthe
Externí odkaz:
http://arxiv.org/abs/1505.08013
This study is an attempt to determine the metallicities of WUMa-type binary stars using spectroscopy. ~4,500 spectra collected at the David Dunlap Observatory were subject to the same Broadening Function processing to determine the combined line stre
Externí odkaz:
http://arxiv.org/abs/1308.0184