New findings supporting the presence of several distinct structures of circumstellar matter in ? Lyræ

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dc.contributor.authorChadima, P.
dc.contributor.authorHarmanec, P.
dc.contributor.authorAk, H.
dc.contributor.authorDemirçan, O.
dc.contributor.authorYang, S.
dc.contributor.authorKoubsk?, P.
dc.contributor.authorŠkoda, P.
dc.date.accessioned2025-01-27T18:55:56Z
dc.date.available2025-01-27T18:55:56Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstract(1) 52 photographic and 651 electronic spectra were disentangled using the program KOREL. This led to the detection of a number of weak absorption lines originating in the atmosphere of the accretion disk. So far, the detection of this disk spectrum was only reported for the Si 6347 and 6371 doublet. (2) The basic spectrophotometric quantities of 15 absorption lines of the primary were measured and corrected for the orbital light changes in order to eliminate the contribution of the secondary light to the observed continuum level. After the correction, a significant phase dependency of the spectral-line characteristics near the primary eclipse was detected. In all probability, another so far unknown absorption-line spectrum was thus found. This spectrum may be due to additional absorption of light of the primary in one of the jet-like structures and in the spherical gas envelope surrounding the accretion disk. Both these structures are seen projected against the primary during its eclipse. © 2007 International Astronomical Union.
dc.description.sponsorshipResearch Council of Turkey; Ministerstvo Školství, Mláde?e a T?lov?chovy, MŠMT, (AV 0Z1 003909, K2043105); Grantová Agentura ?eské Republiky, GA ?R; Akademie V?d ?eské Republiky, AV ?R, (205/06/0304, GA C? R 205/02/0788)
dc.identifier.doi10.1017/S1743921307004036
dc.identifier.endpage208
dc.identifier.issn1743-9221
dc.identifier.issueS240
dc.identifier.scopus2-s2.0-37049025331
dc.identifier.scopusqualityQ4
dc.identifier.startpage205
dc.identifier.urihttps://doi.org/10.1017/S1743921307004036
dc.identifier.urihttps://hdl.handle.net/20.500.12428/12770
dc.identifier.volume2
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofProceedings of the International Astronomical Union
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20250125
dc.subjectAccretion disks; Binaries: close; Circumstellar matter; Stars: individual (? Lyr); Stars: variables: eclipsing
dc.titleNew findings supporting the presence of several distinct structures of circumstellar matter in ? Lyræ
dc.typeConference Object

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