Through the magnifying glass: ALMA acute viewing of the intricate nebular architecture of OH 231.8+4.2
Through the magnifying glass: ALMA acute viewing of the intricate nebular architecture of OH 231.8+4.2
We present continuum and molecular line emission ALMA observations of OH 231.8+4.2, a well studied bipolar nebula around an asymptotic giant branch (AGB) star. The high angular resolution (~0.2-0.3 arcsec) and sensitivity of our ALMA maps provide the most detailed and accurate description of the overall nebular structure and kinematics …