Apsidal motion and absolute parameters for five LMC eccentric eclipsing binaries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173966" target="_blank" >RIV/00216208:11320/13:10173966 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201322054" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201322054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201322054" target="_blank" >10.1051/0004-6361/201322054</a>

Result language

angličtina

Original language name

Apsidal motion and absolute parameters for five LMC eccentric eclipsing binaries

Original language description

Aims. As part of our observational projects at the La Silla Danish 1.54-meter telescope, we aim to measure the precise times of minimum light for eccentric eclipsing binaries in the Large Magellanic Cloud, needed for accurate determination of apsidal motion. Many new times of minima were derived from the photometric databases OGLE and MACHO. Several new minima were also observed. Five early-type and eccentric-orbit eclipsing binaries: HV 982 (P = 5. d 34, e = 0.15), HV 2274 (5. d 73, 0.17), MACHO 78.6097.13 (3. d 11, 0.05), MACHO 81.8881.47 (3. d 88, 0.22), and MACHO 79.5377.76 (2. d 64, 0.06) were studied. Methods. The O-C diagrams of the systems were analysed using all reliable timings found in the literature, and new or improved elements of apsidalmotion were obtained. Light and radial velocity curves of MACHO 81.8881.47 and MACHO 79.5377.76 were analysed using the program PHOEBE. Results. We derived for the first time or significantly improved the relatively short periods of apsid

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Volume of the periodical

558

Issue of the periodical within the volume

říjen

Country of publishing house

FR - FRANCE

Number of pages

12

Pages from-to

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UT code for WoS article

000326574000051

EID of the result in the Scopus database

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