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M1-92: AGB interruption and isotopic ratio paradox. Chemistry and morpho-kinematics from improved shapemol modelling
E. Masa, J. Alcolea, M. Santander-García +5
The shaping of planetary nebulae on their evolution from asymptotic giant branch circumstellar envelopes to their final, most often axisymmetrical, form is still a process with man…
Uncovering the structure and kinematics of the ionized core of M\,2-9 with ALMA
C. Sánchez Contreras, D. Tafoya, J. P. Fonfria +3
We present interferometric observations at 1 and 3\,mm with the Atacama Large Millimeter Array (ALMA) of the free-free continuum and mm-wavelength recombination line (mRRL) emissio…
Dissecting the central regions of OH 231.8 + 4.2 with ALMA: a salty rotating disk at the base of a young bipolar outflow
C. Sánchez Contreras, J. Alcolea, R. Rodríguez Cardoso +5
We present ALMA continuum and molecular line emission maps at 1 mm of OH 231.8, a well studied bipolar nebula around an AGB star. The excellent angular resolution of our maps…
Dense Molecular Clouds in the Crab Supernova Remnant
Alwyn Wootten, Rory O. Bentley, J. Baldwin +7
Molecular emission was imaged with ALMA from numerous components near and within bright H2-emitting knots and absorbing dust globules in the Crab Nebula. These observations provide…
Clues to NaCN formation
G. Quintana-Lacaci, J. Cernicharo, L. Velilla Prieto +5
ALMA is providing us essential information on where certain molecules form. Observing where these molecules emission arises from, the physical conditions of the gas, and how this r…
IRC +10 216 in 3-D: morphology of a TP-AGB star envelope
M. Guélin, N. A. Patel, M. Bremer +10
During their late pulsating phase, AGB stars expel most of their mass in the form of massive dusty envelopes, an event that largely controls the composition of interstellar matter.…