Zobrazeno 1 - 10
of 205
pro vyhledávání: '"AGÚNDEZ, Marcelino"'
Autor:
Cernicharo, José, Tercero, Belén, Cabezas, Carlos, Agúndez, Marcelino, Roueff, Evelyne, Fuentetaja, Raúl, Marcelino, Nuria, de Vicente, Pablo
We present the detection of the three 13C isotopologs of HCCNC and HNCCC toward TMC-1 using the QUIJOTE line survey. In addition, the D species has also been detected for these two isomers of HCCCN, whereas the 15N isotopolog was only detected for HC
Externí odkaz:
http://arxiv.org/abs/2401.15997
Autor:
Cernicharo, José, Agúndez, Marcelino, Cabezas, Carlos, Tercero, Belén, Fuentetaja, Raúl, Marcelino, Nuria, de Vicente, Pablo
We present the first detection of HCNS (thiofulminic acid) in space with the QUIJOTE line survey in the direction of TMC-1. We performed a complete study of the isomers of CHNS and CHNO, including NCO and NCS. The derived column densities for HCNS, H
Externí odkaz:
http://arxiv.org/abs/2401.11785
Autor:
Cernicharo, José, Fuentetaja, Raúl, Agúndez, Marcelino, Kaiser, Ralf I., Cabezas, Carlos, Marcelino, Nuria, Tercero, Belén, Pardo, Juan R., de Vicente, Pablo
Publikováno v:
A&A 663, L9 (2022)
We report the detection of fulvenallene ($c$-C$_5$H$_4$CCH$_2$) in the direction of TMC-1 with the QUIJOTE line survey. Thirty rotational transitions with $K_a$=0,1,2,3 and $J$=9-15 were detected. The best rotational temperature fitting of the data i
Externí odkaz:
http://arxiv.org/abs/2207.09369
Autor:
Cernicharo, José, Fuentetaja, Raúl, Cabezas, Carlos, Agúndez, Marcelino, Marcelino, Nuria, Tercero, Belén, Pardo, Juan Ramón, de Vicente, Pablo
Publikováno v:
A&A 663, L5 (2022)
We report the discovery of five cyano derivatives of propene towards TMC-1 with the QUIJOTE line survey: $trans$ and $cis$-crotononitrile ($t$-CH$_3$CHCHCN, $c$-CH$_3$CHCHCN), methacrylonitrile (CH$_2$C(CH$_3$)CN), and $gauche$ and $cis$-allyl cyanid
Externí odkaz:
http://arxiv.org/abs/2207.03903
Autor:
Cabezas, Carlos, Agundez, Marcelino, Fuentetaja, Raul, Endo, Yasuki, Marcelino, Nuria, Tercero, Belen, Pardo, Juan R., de Vicente, Pablo, Cernicharo, Jos
Publikováno v:
A&A 663, L2 (2022)
Cyclic C5H (c-C5H), the radical formed by substituting an ethynyl group CCH for the hydrogen atom in the c-C3H radical, has been detected for the first time in the space. The c-C5H species is an isomer of the well-known linear radical l-C5H and is 6
Externí odkaz:
http://arxiv.org/abs/2206.00955
Autor:
Cabezas, Carlos, Agundez, Marcelino, Marcelino, Nuria, Tercero, Belen, Pardo, Juan. R., de Vicente, Pablo, Cernicharo, Jose
We report the first detection in interstellar space of the 3-cyano propargyl radical (CH2C3N). This species was observed in the cold dark cloud TMC-1 using the Yebes 40m telescope. A total of seven rotational transitions for both ortho- and para-CH2C
Externí odkaz:
http://arxiv.org/abs/2110.03779
Autor:
Baeyens, Robin, Decin, Leen, Carone, Ludmila, Venot, Olivia, Agúndez, Marcelino, Mollière, Paul
The atmospheres of synchronously rotating exoplanets are intrinsically three-dimensional, and fast vertical and horizontal winds are expected to mix the atmosphere, driving the chemical composition out of equilibrium. Due to the longer computation ti
Externí odkaz:
http://arxiv.org/abs/2105.02245
Autor:
Cabezas, Carlos, Endo, Yasuki, Roueff, Evelyne, Marcelino, Nuria, Agúndez, Marcelino, Tercero, Belén, Cernicharo, José
Publikováno v:
A&A 646, L1 (2021)
Our observations of TMC-1 with the Yebes 40 m radio telescope in the 31.0-50.3 GHz range allowed us to detect a group of unidentified lines, showing a complex line pattern indicative of an open-shell species. {}The observed frequencies of these lines
Externí odkaz:
http://arxiv.org/abs/2101.05187
Silicon and hydrogen chemistry under laboratory conditions mimicking the atmosphere of evolved stars
Autor:
Accolla, Mario, Santoro, Gonzalo, Merino, Pablo, Martínez, Lidia, Tajuelo-Castilla, Guillermo, Vázquez, Luis, Sobrado, Jesús M., Agúndez, Marcelino, Jiménez-Redondo, Miguel, Herrero, Víctor J., Tanarro, Isabel, Cernicharo, José, Martín-Gago, José Ángel
Silicon is present in interstellar dust grains, meteorites and asteroids, and to date thirteen silicon-bearing molecules have been detected in the gas-phase towards late-type stars or molecular clouds, including silane and silane derivatives. In this
Externí odkaz:
http://arxiv.org/abs/2011.01581
Autor:
Santoro, Gonzalo, Martínez, Lidia, Lauwaet, Koen, Accolla, Mario, Tajuelo-Castilla, Guillermo, Merino, Pablo, Sobrado, Jesús M., Peláez, Ramón J., Herrero, Víctor J., Tanarro, Isabel, Mayoral, Álvaro, Agúndez, Marcelino, Sabbah, Hassan, Joblin, Christine, Cernicharo, José, Martín-Gago, José Ángel
Interstellar carbonaceous dust is mainly formed in the innermost regions of circumstellar envelopes around carbon-rich asymptotic giant branch (AGB) stars. In these highly chemically stratified regions, atomic and diatomic carbon, along with acetylen
Externí odkaz:
http://arxiv.org/abs/2005.02902