Abell-35 phenomena in symbiotic stars: Discovery of 1.2 and 6.4 day periods in VV8 (V471 per)

dc.bibliographicCitation.firstPage180eng
dc.bibliographicCitation.issue1-2eng
dc.bibliographicCitation.journalTitleBaltic Astronomyeng
dc.bibliographicCitation.volume21eng
dc.contributor.authorMunari, U.
dc.contributor.authorSiviero, A.
dc.contributor.authorTamajo, E.
dc.contributor.authorFiaschi, M.
dc.contributor.authorDallaporta, S.
dc.contributor.authorCherini, G.
dc.contributor.authorFrigo, A.
dc.contributor.authorCastellani, F.
dc.contributor.authorGraziani, M.
dc.contributor.authorMoretti, S.
dc.contributor.authorTomaselli, S.
dc.date.accessioned2020-09-11T12:52:58Z
dc.date.available2020-09-11T12:52:58Z
dc.date.issued2012
dc.description.abstractWe have collected high precision optical photometry of VV8, so far 782 individual observing runs uniformly distributed over the period 2005-2011. This dataset allows us to refine the known long periodicity of VV8 to P = 16.8 yr, with peak-to-valley amplitudes of ΔB = 0.18 and ΔV = 0.14 mag. In addition, we have discovered two new periodicities: 6.431 d (total amplitude Δ = ΔV = ΔI= 0.05 mag) and 1.185 d (ΔB = 0.022, ΔV = 0.018, ΔI = 0.014 mag). These two short periods are reminiscent of the Abell35 phenomena displayed by binary nuclei of planetary nebulae that have gone through a common envelope phase. Twice the 6.431 d period would nicely correspond to the double-peaked light-curve that the G5 III star in VV8 would display if its Roche lobe would be ellipsoidally distorted.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://doi.org/10.34657/4274
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/5645
dc.language.isoengeng
dc.publisherVilnius : Lithuanian Astronomical Unioneng
dc.relation.doihttps://doi.org/10.1515/astro-2017-0374
dc.relation.issn1392-0049
dc.rights.licenseCC BY-NC-ND 4.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/eng
dc.subject.ddc550eng
dc.subject.otherPlanetary nebulae: Central stareng
dc.subject.otherStars: Symbiotic binarieseng
dc.titleAbell-35 phenomena in symbiotic stars: Discovery of 1.2 and 6.4 day periods in VV8 (V471 per)eng
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorAIPeng
wgl.subjectGeowissenschafteneng
wgl.typeZeitschriftenartikeleng
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