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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…
Low dust emissivities and radial variations in the envelopes of Class 0 protostars: a signature of early grain growth?
Maud Galametz, Anaelle J. Maury, Valeska Valdivia +3
Analyzing the properties of dust and its evolution in the early phases of star formation is crucial to put constraints on the collapse and accretion processes as well as on the pri…
SPARKS II.: Complex organic molecules in accretion shocks around a hot core precursor
T. Csengeri, A. Belloche, S. Bontemps +3
Classical hot cores are rich in molecular emission, and they show a high abundance of complex organic molecules (COMs). The emergence of molecular complexity is poorly constrained…
Chronology of Episodic Accretion in Protostars -- an ALMA survey of the CO and HO snowlines
Tien-Hao Hsieh, Nadia M. Murillo, Arnaud Belloche +6
Episodic accretion has been used to explain the wide range of protostellar luminosities, but its origin and influence on the star forming process are not yet fully understood. We p…
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…
Molecular complexity in the interstellar medium
Arnaud Belloche
The search for complex organic molecules in the interstellar medium (ISM) has revealed species of ever greater complexity. This search relies on the progress made in the laboratory…