Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 229, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-4365/aa5d13
Keywords
catalogs; ISM: molecules; molecular data; techniques: spectroscopic
Categories
Funding
- European Research Council under the European Union/ERC-SyG [610256 NANOCOSMOS]
- Ministerio de Ciencia e Innovacin [CTQ2013-40717-P, CSD2009-00038]
- Junta de Castilla y Len [VA070A08, VA175U13]
- Ministerio de Ciencia e Innovacion [BES-2014-067776]
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We report a detailed spectroscopic investigation of the interstellar aminoacetonitrile, a possible precursor molecule of glycine. Using a combination of Stark and frequency-modulation microwave and millimeter wave spectroscopies, we observed and analyzed the room-temperature rotational spectra of 29 excited states with energies up to 1000 cm(-1). We also observed the C-13 isotopologues in the ground vibrational state in natural abundance (1.1%). The extensive data set of more than 2000 new rotational transitions will support further identifications of aminoacetonitrile in the interstellar medium.
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