Dissecting the central regions of OH231.8+4.2 with ALMA: A salty rotating disk at the base of a young bipolar outflow

@article{Contreras2022DissectingTC,
  title={Dissecting the central regions of OH231.8+4.2 with ALMA: A salty rotating disk at the base of a young bipolar outflow},
  author={Carmen S'anchez Contreras and Javier Alcolea and Roberto R. Cardoso and Valent{\'i}n Bujarrabal and A. Castro-Carrizo and Guillermo Quintana-Lacaci and L. Velilla-Prieto and Miguel Santander-Garc'ia},
  journal={Astronomy \& Astrophysics},
  year={2022}
}
We present a set of Atacama Large Millimeter/submillimeter Array (ALMA) continuum and molecular line emission maps at ∼ 1mm wavelengths of OH231.8 + 4.2. This is a well studied bipolar nebula around an asymptotic giant branch (AGB) star that is key in investigations of the origin of the remarkable changes in nebular morphology and kinematics during the short transition from the AGB to the planetary nebula (PN) phase. The excellent angular resolution of our maps ( ∼ 20mas ≈ 30au) allows us to… 

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A&A proofs: manuscript no. ms_final