Zobrazeno 1 - 10
of 31
pro vyhledávání: '"M. Sekeráš"'
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 2, Iss 1, Pp 277-281 (2015)
BF Cygni is a classical symbiotic binary. Its optical light curve occasionally shows outbursts of the Z And-type, whose nature is not well understood. During the 2006 August, BF Cyg underwent the recent outburst, and continues its active phase to the
Externí odkaz:
https://doaj.org/article/6797cf54a13c4c15950f98d19c890dc3
Autor:
M. Sekeráš, A. Skopal
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 2, Iss 1, Pp 282-285 (2015)
Symbiotic stars are long-period interacting binaries consisting of a cool giant as the donor star and a white dwarf as the acretor. Due to acretion of the material from the giant’s stellar wind, the white dwarf becomes very hot and luminous. The ci
Externí odkaz:
https://doaj.org/article/8df0e592fc4f470c8b824b2ed5f27cf2
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccdc04b9b4dc1f54d5254e0b72e27e16
https://doi.org/10.1002/asna.201512202
https://doi.org/10.1002/asna.201512202
Autor:
A. Skopal, M. Sekeráš
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 2, Iss 1, Pp 282-285 (2015)
Symbiotic stars are long-period interacting binaries consisting of a cool giant as the donor star and a white dwarf as the acretor. Due to acretion of the material from the giant’s stellar wind, the white dwarf becomes very hot and luminous. The ci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9b14d21f5898ecb3e392d2c62bce0f2
https://doi.org/10.14311/app.2015.02.0282
https://doi.org/10.14311/app.2015.02.0282
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 2, Iss 1, Pp 277-281 (2015)
BF Cygni is a classical symbiotic binary. Its optical light curve occasionally shows outbursts of the Z And-type, whose nature is not well understood. During the 2006 August, BF Cyg underwent the recent outburst, and continues its active phase to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57f0c0fc186765f67ade32373272d960
https://ojs.cvut.cz/ojs/index.php/APP/article/view/2924
https://ojs.cvut.cz/ojs/index.php/APP/article/view/2924
Autor:
M. Sekeráš, A. Skopal
Publikováno v:
Open Astronomy, Vol 21, Iss 1-2, Pp 196-199 (2012)
Scopus-Elsevier
Scopus-Elsevier
We modeled the extended wings of the OVI 1032, 1038 Å resonance lines and He II 1640 Å emission line in the spectra of Z And, AG Dra and V1016 Cyg by the electron scattering process. By this way we determined the electron temperature and the electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df88bbc1889a1c62fcea507987a709e0
https://doaj.org/article/a198b7e27c1b4a748aa999eb63d23be3
https://doaj.org/article/a198b7e27c1b4a748aa999eb63d23be3
Publikováno v:
Astronomy & Astrophysics. 507:1531-1539
AG Draconis produces a strong supersoft X-ray emission.The X-ray and optical/UV fluxes are in a strict anticorrelation throughout the active and quiescent phases. The aim of this contribution is to identify the source of the X-ray emission and reveal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::413af65580196642bbf8544ba95cf65a
https://doi.org/10.1051/0004-6361/200811418
https://doi.org/10.1051/0004-6361/200811418
This contribution is focused on the role of cool giants in symbiotic binaries. Especially, we pay attention to their mass-loss rates and the wind mass-transfer onto their compact accretors.
Comment: 4 pages, 2 figures, published in the proceedin
Comment: 4 pages, 2 figures, published in the proceedin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6620d0266597aae12f9731c3f0006953
Autor:
M. Sekeráš, A. Skopal
Publikováno v:
EAS Publications Series. :193-194
V1016 Cyg is a symbiotic binary comprising a Mira-type evolved cool giant and a white dwarf (WD). The WD ionizes a part of the surrounding environment consisting mainly of the giant*s wind. We investigated a weak emission feature at 6545 A – a resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1817b9faba5f85c1381b36dd18f4615d
https://doi.org/10.1051/eas/1571043
https://doi.org/10.1051/eas/1571043
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.