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A planet orbiting an sdB star and an M dwarf in 2M 1938+4603
We present a preliminary analysis of the 2M 1938+4603 star. It is an eclipsing binary system consisting of a primary sdB component and a secondary M dwarf. The photometric data are dominated by mutual eclipses and a very strong reflection effect. The primary has a fairly rich pulsation spectrum which can be used to study its interior. On the other hand, the pulsations affect the binary trend and vice versa what makes the analysis very difficult. Therefore, we attempted at proper modeling of the light variation due to eclipses and reflection and their removal from the data so it does not affect the Fourier analysis of stellar pulsations. We focus on mid-times of over 16 000 primary and secondary minima, which were used to verify stability of the orbital period. The O-C diagram indicates possible parabolic and sinusoidal variations, commonly explained by period changes caused by evolution and a presence of a third body, respectively.
cris.lastimport.scopus | 2024-04-26T01:18:06Z | |
dc.abstract.en | We present a preliminary analysis of the 2M 1938+4603 star. It is an eclipsing binary system consisting of a primary sdB component and a secondary M dwarf. The photometric data are dominated by mutual eclipses and a very strong reflection effect. The primary has a fairly rich pulsation spectrum which can be used to study its interior. On the other hand, the pulsations affect the binary trend and vice versa what makes the analysis very difficult. Therefore, we attempted at proper modeling of the light variation due to eclipses and reflection and their removal from the data so it does not affect the Fourier analysis of stellar pulsations. We focus on mid-times of over 16 000 primary and secondary minima, which were used to verify stability of the orbital period. The O-C diagram indicates possible parabolic and sinusoidal variations, commonly explained by period changes caused by evolution and a presence of a third body, respectively. | pl |
dc.affiliation | Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne | pl |
dc.conference | The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting | pl |
dc.conference.city | Tuluza | |
dc.conference.country | Francja | |
dc.conference.datefinish | 2014-07-11 | |
dc.conference.datestart | 2014-07-06 | |
dc.conference.indexscopus | true | |
dc.conference.indexwos | true | |
dc.contributor.author | Blokesz, Adam | pl |
dc.contributor.author | Baran, Andrzej | pl |
dc.contributor.author | Zoła, Stanisław - 132934 | pl |
dc.date.accessioned | 2015-11-19T10:46:31Z | |
dc.date.available | 2015-11-19T10:46:31Z | |
dc.date.issued | 2015 | pl |
dc.date.openaccess | 0 | |
dc.description.accesstime | w momencie opublikowania | |
dc.description.conftype | international | pl |
dc.description.publication | 0,3 | pl |
dc.description.seriesissn | true | |
dc.description.version | ostateczna wersja wydawcy | |
dc.description.volume | 101 | pl |
dc.identifier.articleid | 06010 | pl |
dc.identifier.doi | 10.1051/epjconf/201510106010 | pl |
dc.identifier.eissn | 2100-014X | pl |
dc.identifier.issn | 2101-6275 | pl |
dc.identifier.project | 2011/03/D/ST9/01914 and 2012/07/B/ST9/04432 | pl |
dc.identifier.project | ROD UJ / P | pl |
dc.identifier.uri | http://ruj.uj.edu.pl/xmlui/handle/item/16915 | |
dc.language | eng | pl |
dc.language.container | eng | pl |
dc.rights | Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa | * |
dc.rights.licence | CC-BY | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/legalcode.pl | * |
dc.share.type | otwarte czasopismo | |
dc.subtype | ConferenceProceedings | pl |
dc.title | A planet orbiting an sdB star and an M dwarf in 2M 1938+4603 | pl |
dc.title.journal | EPJ Web of Conferences | pl |
dc.title.volume | The Space Photometry Revolution – CoRoT Symposium 3, Kepler KASC-7 Joint Meeting | pl |
dc.type | JournalArticle | pl |
dspace.entity.type | Publication |
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Except as otherwise noted, this item is licensed under the Attribution 4.0 International licence