When nature tries to trick us: An eclipsing eccentric close binary superposed on the central star of the planetary nebula M 3-2

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dc.contributor.authorBoffin, Henri M.J.
dc.contributor.authorJones, David
dc.contributor.authorWesson, Roger
dc.contributor.authorBeletsky, Yuri
dc.contributor.authorMiszalski, Brent
dc.contributor.authorSaviane, Ivo
dc.contributor.authorMonaco, Lorenzo
dc.contributor.authorCorradi, Romano
dc.contributor.authorSantander García, Miguel
dc.contributor.authorRodríguez-Gil, Pablo
dc.date.accessioned2022-06-30T23:20:02Z
dc.date.available2022-06-30T23:20:02Z
dc.date.issued2018-11
dc.descriptionIndexación Scopuses
dc.description.abstractBipolar planetary nebulae (PNe) are thought to result from binary star interactions and, indeed, tens of binary central stars of PNe have been found, in particular using photometric time-series that allow for the detection of post-common envelope systems. Using photometry at the NTT in La Silla we have studied the bright object close to the centre of PN M 3-2 and found it to be an eclipsing binary with an orbital period of 1.88 days. However, the components of the binary appear to be two A or F stars, of almost equal mass, and are therefore too cold to be the source of ionisation of the nebula. Using deep images of the central star obtained in good seeing conditions, we confirm a previous result that the central star is more likely much fainter, located 2″ away from the bright star. The eclipsing binary is thus a chance alignment on top of the planetary nebula. We also studied the nebular abundance and confirm it to be a Type I PN. © ESO 2018.es
dc.description.urihttps://www.aanda.org/articles/aa/full_html/2018/11/aa33693-18/aa33693-18.html
dc.identifier.citationAstronomy and Astrophysics Volume 6191 November 2018 Article number A84es
dc.identifier.doi10.1051/0004-6361/201833693
dc.identifier.issn00046361
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/23103
dc.language.isoenes
dc.publisherEDP Scienceses
dc.rights.licenseCC BY 4.0
dc.subjectPlanetary Nebulaees
dc.subjectLinees
dc.subjectWhite Dwarfses
dc.titleWhen nature tries to trick us: An eclipsing eccentric close binary superposed on the central star of the planetary nebula M 3-2es
dc.typeArtículoes
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