Temperature dependence of the rate coefficient of formation of CN radical from C plus NH

2021-05-16T20:21:00+02:00Tags: , , , |

Authors: Garcia, Ernesto; Zanchet, Alexandre; Aoiz, F. Javier Journal: CHEMICAL PHYSICS LETTERS Publication date: 2021/05/16 DOI: 10.1016/j.cplett.2021.138493 Abstract: Rate coefficients of the complex-forming C + NH -> H + CN reaction have been calculated at temperatures ranging from 5 K to 800 K using quasi-classical trajectories on a potential energy surface which accurately describes the [...]

Temperature dependence of the rate coefficient of formation of CN radical from C plus NH

2022-04-04T17:52:53+02:00Tags: , , , |

Authors: Garcia, Ernesto; Zanchet, Alexandre; Aoiz, F. Javier Journal: CHEMICAL PHYSICS LETTERS Publication date: 2021/05/16 DOI: 10.1016/j.cplett.2021.138493 Abstract: Rate coefficients of the complex-forming C + NH -> H + CN reaction have been calculated at temperatures ranging from 5 K to 800 K using quasi-classical trajectories on a potential energy surface which accurately describes the [...]

Hallados hidrocarburos policíclicos aromáticos en el medio interestelar

2021-05-14T16:50:39+02:00Tags: , , , |

Investigadores del IFF-CSIC realizan la primera detección inequívoca de un PAH puro (el indeno) en un lugar inesperado. El primer hito de este trabajo, es la confirmación, por primera vez, de la presencia inequívoca de un PAH puro (el indeno) en el medio interestelar. El segundo hito es que esta confirmación se ha hecho en [...]

Neural network potential energy surface for the low temperature ring polymer molecular dynamics of the H2CO + OH reaction

2021-05-14T14:58:20+02:00Tags: , , , |

Authors: del Mazo-Sevillano, Pablo; Aguado, Alfredo; Roncero, Octavio Journal: JOURNAL OF CHEMICAL PHYSICS Publication date: 2021/03/07 DOI: 10.1063/5.0044009 Abstract: A new potential energy surface (PES) and dynamical study of the reactive process of H2CO + OH toward the formation of HCO + H2O and HCOOH + H are presented. In this work, a source of [...]

Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene

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

Authors: Cernicharo, J.; Agundez, M.; Cabezas, C.; Tercero, B.; Marcelino, N.; Pardo, J. R.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/05/13 DOI: 10.1051/0004-6361/202141156 Abstract: We report the detection for the first time in space of three new pure hydrocarbon cycles in TMC-1: c-C3HCCH (ethynyl cyclopropenylidene), c-C5H6 (cyclopentadiene), and c-C9H8 (indene). We derive [...]

Computational Characterization of Astrophysical Species: The Case of Noble Gas Hydride Cations

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

Authors: Montes de Oca-Estevez, Maria Judit; Prosmiti, Rita Journal: FRONTIERS IN CHEMISTRY Publication date: 2021/05/11 DOI: 10.3389/fchem.2021.664693 Abstract: Theoretical-computational studies together with recent astronomical observations have shown that under extreme conditions in the interstellar medium (ISM), complexes of noble gases may be formed. Such observations have generated a wide range of possibilities. In order to [...]

Constant amplitude driving of a radio frequency excited plasmonic tunnel junction

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

Authors: Dolezal, Jiri; Merino, Pablo; Svec, Martin Journal: APPLIED PHYSICS LETTERS Publication date: 2021/05/10 DOI: 10.1063/5.0048476 Abstract: Constant amplitude bias modulation over a broad range of microwave frequencies is a prerequisite for application in high-resolution spectroscopic techniques in a tunnel junction, e.g., electron spin resonance spectroscopy or optically detected paramagnetic resonance. Here, we present an [...]

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 [...]

O-bearing complex organic molecules at the cyanopolyyne peak of TMC-1: Detection of C2H3CHO, C2H3OH, HCOOCH3, and CH3OCH3

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

Authors: Agundez, M.; Marcelino, N.; Tercero, B.; Cabezas, C.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/05/05 DOI: 10.1051/0004-6361/202140978 Abstract: We report the detection of the oxygen-bearing complex organic molecules propenal (C2H3CHO), vinyl alcohol (C2H3OH), methyl formate (HCOOCH3), and dimethyl ether (CH3OCH3) toward the cyanopolyyne peak of the starless core TMC-1. [...]

The HST See Change Program. I. Survey Design, Pipeline, and Supernova Discoveries*

2021-05-01T20:21:00+02:00Tags: |

Authors: Hayden, Brian; Rubin, David; Boone, Kyle; Aldering, Greg; Nordin, Jakob; Brodwin, Mark; Deustua, Susana; Dixon, Sam; Fagrelius, Parker; Fruchter, Andy; Eisenhardt, Peter; Gonzalez, Anthony; Gupta, Ravi; Hook, Isobel; Lidman, Chris; Luther, Kyle; Muzzin, Adam; Raha, Zachary; Ruiz-Lapuente, Pilar; Saunders, Clare; Sofiatti, Caroline; Stanford, Adam; Suzuki, Nao; Webb, Tracy; Williams, Steven C.; Wilson, Gillian; Yen, [...]

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