Heavy elements in planetary nebulae: A theorist's gold mine

Amanda I. Karakas, Maria Lugaro

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch


Observations of planetary nebulae have revealed a wealth of information about the composition of heavy elements synthesized by the slow neutron capture process (the s process). In some of these nebulae the abundances of neutron-capture elements are enriched by factors of 10 to 30 times the solar value, indicating that these elements were produced in the progenitor star while it was on the asymptotic giant branch (AGB). In this proceedings we summarize results of our recent full s-process network predictions covering a wide range of progenitor masses and metallicities. We compare our model predictions to observations and show how this can provide important insights into nucleosynthesis processes occurring deep within AGB stars.

Original languageEnglish
Title of host publicationPlanetary Nebulae: An Eye to the Future
Subtitle of host publicationProceedings of the 283rd Symposium of the International Astronomical Union held in Puerto de la Cruz, Tenerife, Spain July 25–29, 2011
EditorsArturo Manchado, Letizia Stanghellini, Detlef Schonberner
Place of PublicationCambridge UK
PublisherInternational Astronomical Union
Number of pages4
ISBN (Print)9781107019836
Publication statusPublished - 2012
EventInternational Astronomical Union Symposium 2011: Planetary Nebulae: An Eye to the Future - Conference Centre, Puerto de la Cruz, Spain
Duration: 25 Jul 201129 Jul 2011
Conference number: 283

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)17439213
ISSN (Electronic)17439221


ConferenceInternational Astronomical Union Symposium 2011
Abbreviated titleIAUS 2011
CityPuerto de la Cruz
Internet address


  • abundances
  • Nuclear reactions
  • nucleosynthesis
  • planetary nebulae: general
  • stars: abundances
  • stars: AGB and post-AGB

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