Apsidal motion and a light curve solution for eighteen SMC eccentric eclipsing binaries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286183" target="_blank" >RIV/00216208:11320/14:10286183 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14310/14:00078450

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201424273" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201424273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201424273" target="_blank" >10.1051/0004-6361/201424273</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Apsidal motion and a light curve solution for eighteen SMC eccentric eclipsing binaries

Popis výsledku v původním jazyce

Aims. The Danish 1.54-meter telescope at the La Silla observatory was used for photometric monitoring of selected eccentric eclipsing binaries located in the Small Magellanic Cloud. The new times of minima were derived for these systems, which are neededfor accurate determination of the apsidal motion. Moreover, many new times of minima were derived from the photometric databases OGLE and MACHO. Eighteen early-type eccentric-orbit eclipsing binaries were studied. Methods. Their O-C diagrams of minima timings were analysed and the parameters of the apsidal motion were obtained. The light curves of these eighteen binaries were analysed using the program PHOEBE, giving the light curve parameters. For several systems, the additional third light also was detected. Results. We derived for the first time and significantly improved the relatively short periods of apsidal motion from 19 to 142 years for these systems. The relativistic effects are weak, up to 10% of the total apsidal motion rat

Název v anglickém jazyce

Apsidal motion and a light curve solution for eighteen SMC eccentric eclipsing binaries

Popis výsledku anglicky

Aims. The Danish 1.54-meter telescope at the La Silla observatory was used for photometric monitoring of selected eccentric eclipsing binaries located in the Small Magellanic Cloud. The new times of minima were derived for these systems, which are neededfor accurate determination of the apsidal motion. Moreover, many new times of minima were derived from the photometric databases OGLE and MACHO. Eighteen early-type eccentric-orbit eclipsing binaries were studied. Methods. Their O-C diagrams of minima timings were analysed and the parameters of the apsidal motion were obtained. The light curves of these eighteen binaries were analysed using the program PHOEBE, giving the light curve parameters. For several systems, the additional third light also was detected. Results. We derived for the first time and significantly improved the relatively short periods of apsidal motion from 19 to 142 years for these systems. The relativistic effects are weak, up to 10% of the total apsidal motion rat

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Svazek periodika

572

Číslo periodika v rámci svazku

prosinec

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000346101700091

EID výsledku v databázi Scopus

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