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The peculiar distribution of CH3CN in IRC+10216 seen by ALMA
M. Agundez, J. Cernicharo, G. Quintana-Lacaci +4
IRC+10216 is a circumstellar envelope around a carbon-rich evolved star which contains a large variety of molecules. According to interferometric observations, molecules are distri…
Discovery of SiCSi in IRC+10216: A missing link between gas and dust carriers of SiC bonds
J. Cernicharo, M. C. McCarthy, C. A. Gottlieb +13
We report the discovery in space of a disilicon species, SiCSi, from observations between 80 and 350 GHz with the IRAM 30m radio telescope. Owing to the close coordination between…
Si-bearing molecules towards IRC+10216: ALMA unveils the molecular envelope of CWLeo
L. Velilla Prieto, J. Cernicharo, G. Quintana-Lacaci +9
We report the detection during the ALMA Cycle 0 of SiS rotational lines in high-vibrational states as well as SiO and SiC lines in their ground vibrational state, towards IRC+1…
Molecular ions in the O-rich evolved star OH231.8+4.2: HCO,HCO and first detection of SO, NH, and HO
C. Sánchez Contreras, L. Velilla Prieto, M. Agúndez +8
OH 231.8+4.2, a bipolar outflow around a Mira-type variable star, displays a unique molecular richness amongst circumstellar envelopes (CSEs) around O-rich AGB and post-AGB stars.…