Apsidal motion studies for DI Her

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dc.contributor.authorYildiz, M
dc.contributor.authorIbanoglu, C
dc.contributor.authorDevlen, A
dc.contributor.authorTas, G
dc.contributor.authorUlas, B
dc.contributor.authorSaygan, S
dc.contributor.authorEvren, S
dc.contributor.authorCakirli, O
dc.contributor.editorIbanoglu, C
dc.date.accessioned2019-10-27T18:24:21Z
dc.date.available2019-10-27T18:24:21Z
dc.date.issued2000
dc.departmentEge Üniversitesien_US
dc.descriptionConference of the NATO-Advanced-Study-Institute on Variable Stars as Essential Astrophysical Tools -- AUG 31-SEP 10, 1998 -- CESME, TURKEYen_US
dc.description.abstractEclipsing binary system DI Her has an apsidal motion and its observed apsidal advance seems to be less than even the relativistic advance. Therefore many debates are centered about DI Her, which may also be extended to more or less similar systems showing such a discrepancy between the theory and the observations. Computed value of the apsidal motion rate from the eclipse timings of DI Her, up to now, is very small and about one fourth of the relativistic advance. In this work we show that such a small observed rate is due to use of visual and photographic data having low precision, and due to disregarding the large orbital eccentricity of the system. As a result, we found that the observed apsidal advance is still less than the relativistic advance, but is larger than the previous results by a factor of about two.en_US
dc.description.sponsorshipNATO, Sci Affairs Diven_US
dc.identifier.endpage585en_US
dc.identifier.isbn0-7923-6083-4
dc.identifier.issn0258-2023
dc.identifier.startpage577en_US
dc.identifier.urihttps://hdl.handle.net/11454/36198
dc.identifier.volume544en_US
dc.identifier.wosWOS:000166342200029en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofVariable Stars As Essential Astrophysical Toolsen_US
dc.relation.ispartofseriesNATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleApsidal motion studies for DI Heren_US
dc.typeConference Objecten_US

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