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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
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.

Type
Contributed Papers
Copyright
© International Astronomical Union 2019 

References

Alcolea, J., Neri, R., & Bujarrabal, V. 2007, A&A, 468, L41 Google Scholar
Bujarrabal, V., Alcolea, J., & Neri, R. 1998, ApJ, 504, 915 CrossRefGoogle Scholar
Bujarrabal, V., Alcolea, J., Sahai, R., Zamorano, J., & Zijlstra, A.A. 1998, A&A, 321, 361 Google Scholar
Cohen, M. & Kuhi, L.V. 1977, ApJ, 213, 79 CrossRefGoogle Scholar
de Nutte, R., Decin, L., Olofsson, H., et al. 2017, A&A, 600, A71 Google Scholar
Gesicki, K., Zijlstra, A.A., Hajduk, M., Szyszka, C. 2014, A&A, 566, A48 Google Scholar
Sánchez-Contreras, C., Sahai, R., Gil de Paz, A., & Goodrich, R. 2008, ApJS, 179, 166 CrossRefGoogle Scholar
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