A radial velocity and light curve study of pulsations and binarity in proto-planetary nebulae

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1051/eas/1571026
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EditorSearch for: Lagadec, E.; Search for: Millour, F.; Search for: Lanz, T.
Name affiliation
  1. National Research Council Canada. National Science Infrastructure
FormatText
TypeArticle
Proceedings titleThe Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau
Series titleEAS Publications Series; Volume 71-72
ConferenceThe Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau, June 8–12, 2015, Nice, France
ISSN1633-4760
1638-1963
ISBN978-2-7598-1907-2
Pages127–128
Abstract
We have investigated pulsations and searched for binarity in 7 bright proto-planetary nebulae. All are found to pulsate, with dominant periods of 39−132 days. However, no strong evidence of binarity is found in any of them. This implies that any binary companion must have either a very long period (>30 yr) or low mass (<0.2 Msun). This appears to rule out Roche lobe overflow as a contribution to the shaping of the surrounding nebula.
Publication date
LanguageEnglish
Peer reviewedYes
Identifiereas1571026
NPARC number23000659
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