University of Illinois Urbana-Champaign

Reexamining The Chemistry In Protoplanetary Nebulae: M1-92, Cotton Candy Nebula, And Iras22036

Gold, Katherine R.

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MN10_1.pptx
6487.pdf

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https://hdl.handle.net/2142/116912

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Title
Reexamining The Chemistry In Protoplanetary Nebulae: M1-92, Cotton Candy Nebula, And Iras22036
Author(s)
Gold, Katherine R.
Contributor(s)
  • Ziurys, Lucy M.
  • Schmidt, Deborah
Issue Date
2022-06-20
Keyword(s)
Astronomy
Abstract
Protoplanetary nebulae (PPNe) are an important step in stellar evolution as they bridge the asymptotic giant branch (AGB) and planetary nebulae phases. Observations have demonstrated that planetary nebulae are rich in molecular content which varies considerably from the AGB phase; therefore, significant chemical changes must occur in the PPNe stage. To examine this issue, we have conducted observations of M1-92, the Cotton Candy Nebula, and IRAS22036+5306, all PPN sources in which CO had previously been detected. Measurements were conducted with the 12-meter antenna and the Sub-millimeter Telescope (SMT) of the Arizona Radio Observatory at 3, 2, and 1 mm. Towards M1-92 we have thus far detected CN, HCO$^{+}$, H$^{13}$CO$^{+}$, HCN, and HNC. Towards the Cotton Candy Nebula, we have identified CN, HCN, and HNC. In IRAS22036+5306, \chem{H_2S} and SO have been observed. Abundances in these PPNe appear to vary from those in circumstellar AGB envelopes. The detailed chemistry in these sources will be discussed.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Handle URL
https://hdl.handle.net/2142/116912
DOI
https://doi.org/10.15278/isms.2022.MN10
Copyright and License Information
Copyright 2022 held by the authors

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Abstracts & Presentations - 2022 International Symposium on Molecular Spectroscopy PRIMARY