Space and laboratory observation of the deuterated cyanomethyl radical HDCCN

2022-04-05T17:41:19+02:00Tags: |

Authors: Cabezas, C.; Endo, Y.; Roueff, E.; Marcelino, N.; Agundez, M.; Tercero, B.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/01/29 DOI: 10.1051/0004-6361/202040210 Abstract: 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 [...]

A study of C4H3N isomers in TMC-1: Line by line detection of HCCCH2CN

2022-04-05T17:41:18+02:00Tags: |

Authors: Marcelino, N.; Tercero, B.; Agundez, M.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/02/12 DOI: 10.1051/0004-6361/202040177 Abstract: We present Yebes 40 m telescope observations of the three most stable C4H3N isomers towards the cyanopolyyne peak of TMC-1. We have detected 13 transitions from CH3C3N (A and E species), 16 lines from CH2CCHCN, and [...]

Space and laboratory discovery of HC3S+

2022-04-05T17:41:18+02:00Tags: |

Authors: Cernicharo, J.; Cabezas, C.; Endo, Y.; Marcelino, N.; Agundez, M.; Tercero, B.; Gallego, J. D.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/02/04 DOI: 10.1051/0004-6361/202040013 Abstract: We report the detection in TMC-1 of the protonated form of C3S. The discovery of the cation HC3S+ was carried through the observation of four harmonically [...]

Gas phase Elemental abundances in Molecular cloudS (GEMS): III. Unlocking the CS chemistry: the CS plus O reaction

2022-04-05T17:41:18+02:00Tags: |

Authors: Bulut, N.; Roncero, O.; Aguado, A.; Loison, J-C; Navarro-Almaida, D.; Wakelam, V; Fuente, A.; Roueff, E.; Le Gal, R.; Caselli, P.; Gerin, M.; Hickson, K. M.; Spezzano, S.; Riviere-Marichalar, P.; Alonso-Albi, T.; Bachiller, R.; Jimenez-Serra, I; Kramer, C.; Tercero, B.; Rodriguez-Baras, M.; Garcia-Burillo, S.; Goicoechea, J. R.; Trevino-Morales, S. P.; Esplugues, G.; Cazaux, S.; [...]

Bottlenecks to interstellar sulfur chemistry: Sulfur-bearing hydrides in UV-illuminated gas and grains

2022-04-05T17:41:17+02:00Tags: |

Authors: Goicoechea, J. R.; Aguado, A.; Cuadrado, S.; Roncero, O.; Pety, J.; Bron, E.; Fuente, A.; Riquelme, D.; Chapillon, E.; Herrera, C.; Duran, C. A. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/02 DOI: 10.1051/0004-6361/202039756 Abstract: Hydride molecules lie at the base of interstellar chemistry, but the synthesis of sulfuretted hydrides is poorly understood and their [...]

The initial gas-phase sulfur abundance in the Orion Molecular Cloud from sulfur radio recombination lines

2022-04-05T17:41:14+02:00Tags: |

Authors: Goicoechea, Javier R.; Cuadrado, Sara Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/16 DOI: 10.1051/0004-6361/202140517 Abstract: The abundances of chemical elements and their depletion factors are essential parameters for understanding the composition of the gas and dust that are ultimately incorporated into stars and planets. Sulfur is an abundant but peculiar element in the sense [...]

Discovery of CH2CHCCH and detection of HCCN, HC4N, CH3CH2CN, and, tentatively, CH3CH2CCH in TMC-1

2022-04-05T17:41:14+02:00Tags: |

Authors: Cernicharo, J.; Agundez, M.; Cabezas, C.; Marcelino, N.; Tercero, B.; Pardo, J. R.; Gallego, J. D.; Tercero, F.; Lopez-Perez, J. A.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/10 DOI: 10.1051/0004-6361/202140434 Abstract: We present the discovery in TMC-1 of vinyl acetylene, CH2CHCCH, and the detection, for the first time in a cold [...]

Rate coefficients for H-2:H-2 inelastic collisions in the ground vibrational state from 10 to 1000 K

2022-04-05T17:41:13+02:00Tags: |

Authors: Hernandez, M., I; Tejeda, G.; Fernandez, J. M.; Montero, S. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/03/26 DOI: 10.1051/0004-6361/202039790 Abstract: Aims. In this work, we present a pruned set of state-to-state rate coefficients (STS rates) for inelastic H-2:H-2 collisions in the thermal range from 10 to 1000 K. The set includes all relevant rates [...]

TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H2CCS, H2CCCS, and C4S and detection of C5S

2022-04-05T17:41:09+02:00Tags: |

Authors: Cernicharo, J.; Cabezas, C.; Agundez, M.; Tercero, B.; Pardo, J. R.; Marcelino, N.; Gallego, J. D.; Tercero, F.; Lopez-Perez, J. A.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/04/07 DOI: 10.1051/0004-6361/202140642 Abstract: We report the detection of the sulfur-bearing species NCS, HCCS, H2CCS, H2CCCS, and C4S for the first time in space. [...]

Submillimeter imaging of the Galactic Center starburst Sgr B2 Warm molecular, atomic, and ionized gas far from massive star-forming cores

2022-04-05T17:41:08+02:00Tags: |

Authors: Santa-Maria, M. G.; Goicoechea, J. R.; Etxaluze, M.; Cernicharo, J.; Cuadrado, S. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/05/06 DOI: 10.1051/0004-6361/202040221 Abstract: Context. Star-forming galaxies emit bright molecular and atomic lines in the submillimeter and far-infrared (FIR) domains. However, it is not always clear which gas heating mechanisms dominate and which feedback processes drive [...]

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