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M 1–92 revisited: the chemistry of a common envelope nebula?

Published online by Cambridge University Press:  30 December 2019

Javier Alcolea Open the ORCID record for Javier Alcolea [Opens in a new window] ,
Marcelino Agúndez ,
Valentín Bujarrabal ,
Arancha Castro Carrizo ,
Jean-François Desmurs ,
Carmen Sánchez-Contreras  and
Miguel Santander-García
Javier Alcolea
Affiliation:
Observatorio Astronómico Nacional (IGN/CNIG), Alfonso XII 3, E-28014 Madrid, Spain
Marcelino Agúndez
Affiliation:
Group of Molecular Astrophysics (IFF, CSIC), Serrano 123, E-28006 Madrid, Spain
Valentín Bujarrabal
Affiliation:
Observatorio Astronómico Nacional (IGN/CNIG), Alfonso XII 3, E-28014 Madrid, Spain
Arancha Castro Carrizo
Affiliation:
IRAM, 300 Rue de Piscine, Domaine Universitaire, F-38406 Snt Martin d’Héres, France
Jean-François Desmurs
Affiliation:
Observatorio Astronómico Nacional (IGN/CNIG), Alfonso XII 3, E-28014 Madrid, Spain
Carmen Sánchez-Contreras
Affiliation:
Centro de Astrobiologa (CSIC-INTA), ESAC, E-28691 Villafranca del Castillo, Spain
Miguel Santander-García
Affiliation:
Observatorio Astronómico Nacional (IGN/CNIG), Alfonso XII 3, E-28014 Madrid, Spain
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Abstract

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We report on new molecular-line observations of the bipolar pre-planetary nebula M 1–92. The new IRAM 30 m MRT and NOEMA data shows the presence of shock induced chemistry in the nebula. From the derived [17O]/[18O] ratio, we suggest that the sudden mass loss event responsible for the formation of the nebula 1200 yr ago may also have resulted in the premature end of the AGB phase of the central star.

Keywords

stars: AGB and post-AGBstars: evolutionstars: individual (M 1–92)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 343 - 344
Copyright
© International Astronomical Union 2019 

References

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