An occultation event in a triple post-AGB star

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dc.creatorHajduk, M.
dc.creatorZijlstra, A. A.
dc.creatorGesicki, K.
dc.date2008-06-30
dc.date2008-10-23
dc.date.accessioned2026-07-07T10:15:07Z
dc.date.available2026-07-07T10:15:07Z
dc.descriptionWe study the post-AGB central star of the (bipolar) Galactic bulge planetary nebula M 2-29. We have obtained additional HST imaging and SAAO spectroscopy of the object. The star showed a pronounced, long-lasting occultation with subsequent recovery. The event lasted for almost 3 years, with a secondary minimum 9 years later. The photometric behaviour of M 2-29 resembles the dust-occultation events seen in NGC 2346, and is modeled as an occultation by a circumbinary disk, where the binary period is 18 yr. Modulation during the decline shows evidence for another companion with a period of 23 days.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0807.0028
dc.identifierhttp://arxiv.org/abs/0807.0028
dc.identifierAstronomy and Astrophysics (2008) 490L 7H
dc.identifierdoi:10.1051/0004-6361:200810492
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173078
dc.subjectAstrophysics
dc.titleAn occultation event in a triple post-AGB star
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