Refinement of third body parameters and new photometric results for the early-type multiple system IU Aurigae
dc.contributor.author | Özdemir, S | |
dc.contributor.author | Mayer, P | |
dc.contributor.author | Drechsel, H | |
dc.contributor.author | Demircan, O | |
dc.contributor.author | Ak, H | |
dc.date.accessioned | 2025-01-27T20:27:03Z | |
dc.date.available | 2025-01-27T20:27:03Z | |
dc.date.issued | 2003 | |
dc.department | Çanakkale Onsekiz Mart Üniversitesi | |
dc.description.abstract | The massive eclipsing binary system IU Aurigae is re-analyzed in the context of new photometric observations and an improved treatment of its long-term period changes (O-C diagram) derived from new times of minima. The best-fit of the O-C curve reveals that the third component is orbiting around the system with a period of 293.3 days in a highly eccentric orbit (e = 0.62). A solution of the most recent UBV light curves obtained during 1997/1998 showed a third light contribution of approximate to23% and continuation of the orbital plane precession of IU Aurigae. Since the revised mass of the third component deduced from the analysis of the O-C curve of m(3) = 14.2 M-. would imply a larger fraction of third light than suggested by the value of 23% derived from the light curve analysis, the third body is possibly composed of two components. A q-search test applied to the UBV light curves yields a minimum chi(2) value at q = 0.67 +/- 0.02, which confirms previous photometric and spectroscopic solutions. | |
dc.identifier.doi | 10.1051/0004-6361:20030392 | |
dc.identifier.endpage | 681 | |
dc.identifier.issn | 0004-6361 | |
dc.identifier.issue | 2 | |
dc.identifier.scopus | 2-s2.0-0037986779 | |
dc.identifier.scopusquality | Q1 | |
dc.identifier.startpage | 675 | |
dc.identifier.uri | https://doi.org/10.1051/0004-6361:20030392 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12428/22563 | |
dc.identifier.volume | 403 | |
dc.identifier.wos | WOS:000182678800034 | |
dc.identifier.wosquality | Q1 | |
dc.indekslendigikaynak | Web of Science | |
dc.indekslendigikaynak | Scopus | |
dc.language.iso | en | |
dc.publisher | E D P Sciences | |
dc.relation.ispartof | Astronomy & Astrophysics | |
dc.relation.publicationcategory | info:eu-repo/semantics/openAccess | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.snmz | KA_WoS_20250125 | |
dc.subject | binaries : eclipsing | |
dc.subject | stars : early-type | |
dc.subject | stars : individual : IU Aurigae | |
dc.title | Refinement of third body parameters and new photometric results for the early-type multiple system IU Aurigae | |
dc.type | Article |