The i process in the post-AGB star v4334 Sgr

P. A.M. van Hoof, F. Herwig, S. Kimeswenger, G. C. Van de Steene, A. Avison, A. A. Zijlstra, M. Hajduk, L. Guzmán-Ramirez, P. R. Woodward

Research output: Contribution to journalConference article

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Abstract

V4334 Sgr is a post-AGB star that underwent a VLTP a few years before 1996. During the event the hydrogen-rich outer layer was ingested into the He shell, creating conditions where i-process nucleosynthesis could take place. The enriched material was ejected almost immediately afterwards to form a new, hydrogen-deficient PN inside the old PN. In this paper we describe theoretical work to study the convective mixing during the VLTP event, as well as our observational campaign to study the ejecta.

Original languageEnglish (US)
Pages (from-to)463-466
Number of pages4
JournalMemorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society
Volume88
Issue number3
StatePublished - Jan 1 2017
Event2017 AGB-Supernovae Mass Transition - Monte Porzio Catone, Italy
Duration: Mar 27 2017Mar 31 2017

Keywords

  • Convection
  • Nuclear reactions, nucleosynthesis, abundances
  • Planetary nebulae: general
  • Stars: AGB and post-AGB
  • Stars: evolution
  • Stars: individual: V4334 Sgr

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    van Hoof, P. A. M., Herwig, F., Kimeswenger, S., Van de Steene, G. C., Avison, A., Zijlstra, A. A., Hajduk, M., Guzmán-Ramirez, L., & Woodward, P. R. (2017). The i process in the post-AGB star v4334 Sgr. Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society, 88(3), 463-466.