Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/285747
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Discovery of CH2CCHC4H and a rigorous detection of CH2CCHC3N in TMC-1 with the QUIJOTE line survey |
Autor: | Fuentetaja, R. CSIC ORCID; Cabezas, Carlos CSIC ORCID; Agúndez, Marcelino CSIC ORCID; Tercero, Belén CSIC ORCID; Marcelino, Nuria CSIC ORCID; Pardo Carrión, Juan Ramón CSIC ORCID ; Vicente, P. de; Cernicharo, José CSIC ORCID | Palabras clave: | Molecular data Line: identification ISM: molecules ISM: individual objects: TMC-1 Astrochemistry |
Fecha de publicación: | 8-jul-2022 | Editor: | Springer Nature | Citación: | Astronomy and Astrophysics 663: L3 (2022) | Resumen: | Using the QUIJOTE line survey in the 32.0-50.4 GHz range, we report the discovery of the molecule CH2CCHC4H towards the prestellar cold core TMC-1 in the Taurus region. We also present a rigorous detection of CH2CCHC3N, along with its detailed analysis. We identified a total of twenty rotational transitions for each one of these molecules. The rotational quantum numbers range from Ju = 17 up to 24 and Ka ≤ 3. The column density for CH2CCHC4H is N = (2.2 ± 0.2) × 10cm, while for CH2CCHC3N, we derived N = (1.2 ± 0.15) × 10cm. The rotational temperature is 9.0 ± 0.5K for both species. The abundance ratiobetween CH2CCHC4H and CH2CCHC3N is 18 ± 4. We also compared the column densities of these species with those of their isomers CH3C6H and CH3C5N, derived from their J = 20-10 up to J = 31-30 rotational transitions observed with the QUIJOTE line survey. The observed abundances for all these species are reasonably well explained by state-of-the-art chemical models of TMC-1. The observed astronomical frequencies were merged with laboratory frequencies from the literature to derive improved spectroscopic parameters. | Descripción: | 12 pags., 5 figs., 5 tabs. | Versión del editor: | http://dx.doi.org/10.1051/0004-6361/202243857 | URI: | http://hdl.handle.net/10261/285747 | DOI: | 10.1051/0004-6361/202243857 | Identificadores: | doi: 10.1051/0004-6361/202243857 issn: 1432-0746 |
Aparece en las colecciones: | (CFMAC-IFF) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Discovery.pdf | 634,52 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
4
checked on 22-abr-2024
WEB OF SCIENCETM
Citations
1
checked on 29-feb-2024
Page view(s)
25
checked on 29-abr-2024
Download(s)
17
checked on 29-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.