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Rotational spectrum of isotopic methyl mercaptan, (13)CH3SH, in the laboratory and towards Sagittarius B2(N2)
V. V. Ilyushin, O. Zakharenko, F. Lewen +9
Methyl mercaptan (CH3SH) is a known interstellar molecule with abundances high enough that the detection of some of its minor isotopologues is promising. The present study aims at…
The ALMA-PILS survey: propyne (CHCCH) in IRAS 162932422
H. Calcutt, E. R. Willis, J. K. Jørgensen +7
Context. Propyne (CHCCH) has been detected in a variety of environments, from Galactic star-forming regions to extragalactic sources. Such molecules are excellent tracers of th…
Simulations of ice chemistry in cometary nuclei
Robin T. Garrod
The first computational model of solid-phase chemistry in cometary nuclear ices is presented. An astrochemical kinetics model, MAGICKAL, is adapted to trace the chemical evolution…
Interstellar Glycolaldehyde, Methyl Formate, and Acetic Acid I: A Bi-modal Abundance Pattern in Star Forming Regions
Samer J. El-Abd, Crystal L. Brogan, Todd R. Hunter +3
The relative column densities of the structural isomers methyl formate, glycolaldehyde, and acetic acid are derived for a dozen positions towards the massive star-forming regions M…
Laboratory rotational spectroscopy of isotopic acetone, CHC(O)CH and CHC(O)CH, and astronomical search in Sagittarius B2(N2)
Matthias H. Ordu, Oliver Zingsheim, Arnaud Belloche +5
We want to study the rotational spectra of CHC(O)CH and CHC(O)CH and search for them in Sagittarius B2(N2). We investigated the laboratory rotational sp…
Re-exploring Molecular Complexity with ALMA (ReMoCA): Interstellar detection of urea
A. Belloche, R. T. Garrod, H. S. P. Müller +4
Urea, NH2C(O)NH2, is a molecule of great importance in organic chemistry and biology. Two searches for urea in the interstellar medium were reported in the past, but neither were c…