title: Searches for new interstellar molecules, including a tentative detection of aziridine and a possible detection of propenal.
abstract: Rotational spectroscopy at millimeter wavelengths is a powerful means of investigating the chemistry of dense interstellar clouds. These regions can exhibit an interesting complement of gas phase molecules, including relatively complex organics. Here we report the tentative first astronomical detection of aziridine (ethylenimine), the possible detection of propenal (acrolein), and upper limits on the abundances of cyclopropenone, furan, hydroxyethanal (glycolaldehyde), thiohydroxylamine (NH2SH), and ethenol (vinyl alcohol) in various interstellar clouds.
authors.affiliation: Jet Propulsion Lab., Pasadena, CA 91109, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Dickens
authors.forename: W M
authors.initials: WM
authors.lastname: Irvine
authors.forename: A
authors.initials: A
authors.lastname: Nummelin
authors.forename: H
authors.initials: H
authors.lastname: Møllendal
authors.forename: S
authors.initials: S
authors.lastname: Saito
authors.forename: S
authors.initials: S
authors.lastname: Thorwirth
authors.forename: A
authors.initials: A
authors.lastname: Hjalmarson
authors.forename: M
authors.initials: M
authors.lastname: Ohishi
mesh_terms: D000079:Acetaldehyde / Q000031:analogs & derivatives* / Q000032:analysis; D000171:Acrolein / Q000032:analysis*; D055580:Astronomical Phenomena; D001256:Astronomy; D001388:Aziridines / Q000032:analysis*; D019411:Clinical Laboratory Techniques; D019443:Cosmic Dust / Q000032:analysis*; D003521:Cyclopropanes / Q000032:analysis; D005663:Furans / Q000032:analysis
chemical_list: D001388:Aziridines; D019443:Cosmic Dust; D003521:Cyclopropanes; D005663:Furans; C120343:cyclopropenone; C033132:aziridine; D000171:Acrolein; D000079:Acetaldehyde; C039281:furan; C010972:glycolaldehyde