Discovery of five cyano derivatives of propene with the QUIJOTE line survey
| العنوان: | Discovery of five cyano derivatives of propene with the QUIJOTE line survey |
|---|---|
| المؤلفون: | J. Cernicharo, R. Fuentetaja, C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, J. R. Pardo, P. de Vicente |
| المساهمون: | European Commission, Ministerio de Ciencia, Innovación y Universidades (España) |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Molecular data, Space and Planetary Science, Line: identification, Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astronomy and Astrophysics, ISM: individual objects: TMC-1, Astrophysics - Astrophysics of Galaxies, ISM: molecules, Astrochemistry |
| الوصف: | 11 pags., 6 figs., 7 tabs. We report the discovery of five cyano derivatives of propene towards TMC-1 with the QUIJOTE line survey: trans and cis-crotononitrile (t-CH3CHCHCN, c-CH3CHCHCN), methacrylonitrile (CH2C(CH3)CN), and gauche and cis-allyl cyanide (g-CH2CHCH2CN and c-CH2CHCH2CN). The observed transitions allowed us to derive a common rotational temperature of 7 ± 1 K for all them. The derived column densities are N(t-CH3CHCHCN) = (5 ± 0.5) - 1010 cm2, N(c-CH3CHCHCN) = (1.3 ± 0.2) -1011 cm 2, N(CH2C(CH3)CN) = (1.0±0.1) -1011 cm 2, N(g-CH2CHCH2CN) = (8.0 ± 0.8) -1010 cm 2, and N(c-CH2CHCH2CN) = (7.0 ± 0.7) - 1010 cm 2, respectively. The abundance of cyano-propene relative to that of propene is thus ¿10 2, which is considerably lower than those of other cyano derivatives of abundant hydrocarbons. Upper limits are obtained for two ethynyl derivatives of propene (E and Z-CH3CHCHCCH). We thank ERC for funding through grant ERC-2013-Syg-610256-NANOCOSMOS. We also thank Ministerio de Ciencia e Innovación of Spain (MICIU) for funding support through projects PID2019-106110GB-I00, PID2019-107115GB-C21/AEI/10.13039/501100011033, and PID2019-106235GB-I00 |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::751f5a735ff2515752a941f3b90e242c http://arxiv.org/abs/2207.03903 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....751f5a735ff2515752a941f3b90e242c |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |