Zobrazeno 1 - 10
of 188
pro vyhledávání: '"AGÚNDEZ, MARCELINO"'
Autor:
Alonso, Elena R., Insausti, Aran, Kolesniková, Lucie, León, Iker, McGuire, Brett A., Shingledecker, Christopher N., Agúndez, Marcelino, Cernicharo, José, Rivilla, Víctor M., Cabezas, Carlos
Publikováno v:
Elena R. Alonso et al 2024 ApJ 976 95
This work aims to spectroscopically characterize and provide for the first time direct experimental frequencies of the ground vibrational state and two excited states of the simplest alkynyl thiocyanate (HCCSCN) for astrophysical use. Both microwave
Externí odkaz:
http://arxiv.org/abs/2411.11802
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