ZEJDA, Miloslav, Zdeněk MIKULÁŠEK, Marek WOLF and Petr SVOBODA. The Remarkable Eclipsing Binary TW Draconis. In Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240, held 22-25 August, 2006 in Prague, Czech Republic,. kvakva: IAU, 2006, p. 101-105. ISBN 0521850185.
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Basic information
Original name The Remarkable Eclipsing Binary TW Draconis
Name in Czech Pozoruhodná zákrytová dvojhvězda TW Draconis
Authors ZEJDA, Miloslav (203 Czech Republic, guarantor), Zdeněk MIKULÁŠEK (203 Czech Republic), Marek WOLF (203 Czech Republic) and Petr SVOBODA (203 Czech Republic).
Edition kvakva, Binary Stars as Critical Tools and Tests in Contemporary Astrophysics, International Astronomical Union. Symposium no. 240, held 22-25 August, 2006 in Prague, Czech Republic, p. 101-105, 2006.
Publisher IAU
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/00216224:14310/06:00016295
Organization unit Faculty of Science
ISBN 0521850185
Keywords in English Methods: data analysis; methods: statistical; stars: chemically peculiar; stars: individual (HD 90044; HD 125248); stars: magnetic fields; stars: variables; other; techniques: photometric
Tags HD 125248), methods: data analysis, methods: statistical, other, stars: chemically peculiar, stars: individual (HD 90044, stars: magnetic fields, stars: variables, techniques: photometric
Tags International impact, Reviewed
Changed by Changed by: doc. RNDr. Miloslav Zejda, Ph.D., učo 169695. Changed: 13/7/2008 22:29.
Abstract
We analyzed a new photometry of this well-known Algol-like eclipsing binary together with old photoelectric measurements with the aim of better understanding of its orbital period changes and short-time light variations modulating the mean light curve. The analysis has been done by the new method based on the principal component analysis and robust regression. New spectroscopic observations and radial velocity curve are also presented, as well as the solution of the light curve of the system.
Abstract (in Czech)
Analyzovali jsme novou fotometrii této proslulé zákrytové dvojhvězdy typu Algol spolu se starými fotoelktrickými měřeními s cílem lépe porozumět změnám její oběžné periody a krátkodobým modulacím střední světelné křivky. Analýza byla vedena novou metodou založenou na aplikaci komponentové analýzy a robustní regrese. Předkládáme též nová spektroskopická pozorování a křivky radiální rychlosti, stejně jako řešení světelné křivky systému.
Links
GA205/04/1267, research and development projectName: Okolohvězdné obálky horkých hvězd
Investor: Czech Science Foundation, Circumstellar envelopes of hot stars
GA205/04/2063, research and development projectName: Fotometrický výzkum zákrytových dvojhvězd
Investor: Czech Science Foundation
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