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Exploring molecular complexity in the Galactic Center with ALMA

Published online by Cambridge University Press:  04 September 2018

Arnaud Belloche
Arnaud Belloche*
Affiliation:
Max-Planck-Institut für Radioastronomie, 53121 Bonn, Germany email: belloche@mpifr-bonn.mpg.de
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Abstract

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The search for complex organic molecules (COMs) in the ISM has revealed chemical species of ever greater complexity. This search relies heavily on the progress made in the laboratory to characterize the rotational spectra of these molecules. Observationally, the advent of ALMA with its high angular resolution and sensitivity has allowed to reduce the spectral confusion and detect low-abundance molecules that could not be probed before. We present results of the EMoCA survey conducted with ALMA toward the star-forming region Sgr B2(N). This spectral line survey aims at deciphering the molecular content of Sgr B2(N) in order to test the predictions of astrochemical models and gain insight into the chemical processes at work in the ISM. We report on the tentative detection of N-methylformamide, on deuterated COMs, and on the detection of a branched alkyl molecule. Prospects for probing molecular complexity in the ISM even further are discussed at the end.

Keywords

ISM: moleculesastrochemistryISM: individual objects: Sagittarius B2(N)stars: formation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S332: Astrochemistry VII: Through the Cosmos from Galaxies to Planets , March 2017 , pp. 383 - 394
Copyright
Copyright © International Astronomical Union 2018 

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