Výsledky vyhledávání - "Christian Balança"

Collisional excitation of C2H- by H2: New interaction potential and scattering calculations

Autor: Fabien Dumouchel, Ernesto Quintas-Sánchez, Christian Balança, Richard Dawes, François Lique, Nicole Feautrier

Publikováno v: Journal of Chemical Physics
Journal of Chemical Physics, 2023, 158 (16), pp.164307. ⟨10.1063/5.0148119⟩

International audience; Interstellar anions play an important role in astrochemistry as being tracers of the physical and chemical conditions in cold molecular clouds and circumstellar gas. The local thermodynamic equilibrium is generally not fulfill

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36af9d2f1fc6a688f841f480890e8a0d
https://hal.science/hal-04090181

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Inelastic rate coefficients for collisions of C4H-with H2

Autor: Christian Balança, Ernesto Quintas-Sánchez, Richard Dawes, Fabien Dumouchel, François Lique, Nicole Feautrier

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2021, 508 (1), pp.1148-1155. ⟨10.1093/mnras/stab2563⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2021, 508 (1), pp.1148-1155. ⟨10.1093/mnras/stab2563⟩

Carbon-chain anions were recently detected in the interstellar medium. These very reactive species are used as tracers of the physical and chemical conditions in a variety of astrophysical environments. However, the local thermodynamic equilibrium co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::171f979e1ef1c6c5524be7acd2511520
https://hal.science/hal-03468800/file/stab2563.pdf

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Laboratory studies of Vacuum Ultra-Violet (VUV) emission spectra of heavy element ions

Autor: Christophe Blaess, W.-Ü Lydia Tchang-Brillet, Jean-François Wyart, Djamel Deghiche, Ali Meftah, Norbert Champion, Christian Balança

Publikováno v: Proceedings of the International Astronomical Union. 15:84-88

Reliable spectroscopic data are needed for interpretation and modeling of observed astrophysical plasmas. For heavy element ions, which have complex spectra, experimental data are rather incomplete. To provide valuable fundamental quantities, such as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ffb7052c31a0fec990552dd72fb9c99
https://doi.org/10.1017/s1743921320000307

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Inelastic rate coefficients for collisions of N$_2$H$^+$ with H$_2$

Autor: Jérôme Loreau, Nicole Feautrier, François Lique, Yohann Scribano, Christian Balança

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 495 (2), pp.2524-2530. ⟨10.1093/mnras/staa1384⟩

N2H+ is one of the first molecular ions observed in the interstellar medium and it is of particular interest to probe the physical conditions of cold molecular clouds. Accurate modelling of the observed lines requires the knowledge of collisional exc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccf37a5ec9c68fbe8ffae7b7e1bb6e8f
https://hal.archives-ouvertes.fr/hal-02863673/document

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Rotationally inelastic collisions of SiO with H2

Autor: Christian Balança, Fabrice Dayou, Nicole Feautrier, Laurent Wiesenfeld, Alexandre Faure

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 479 (2), pp.2692-2701. ⟨10.1093/mnras/sty1681⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25167ed73efe760db8a4bc8aeb0aca24
https://doi.org/10.1093/mnras/sty1681

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Inelastic rate coefficients for collisions of C4H- with para-H2(j = 0) at low temperatures

Autor: María Luisa Senent, Christian Balança, Fabien Dumouchel, Fabrice Dayou, Nicole Feautrier

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 486 (1), pp.422-429. ⟨10.1093/mnras/stz865⟩
Digital.CSIC. Repositorio Institucional del CSIC
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8 pags., 9 figs., 1 tab.
Anions are very reactive species that can play important roles in the chemical evolution of the interstellar medium. Following the detection of CH carbon chains, investigations on detectable anions led to the discovery o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f727d072d92462f97c90241299f8077f
http://hdl.handle.net/10261/208601

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Ro-vibrational excitation of SiO by collision with helium at high temperature

Autor: Fabrice Dayou, Christian Balança

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 469 (2), pp.1673-1681. ⟨10.1093/mnras/stx925⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 469 (2), pp.1673-1681. ⟨10.1093/mnras/stx925⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72978f303e36f374b3221c859b3def40
https://hal.science/hal-02173772

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Isotopic effects in the collision of CH+ with He

Autor: N. Feautrier, Boutheïna Kerkeni, Christian Balança, Ghofran Werfelli, Thierry Stoecklin

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 468 (3), pp.2582-2589. ⟨10.1093/mnras/stx675⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 468 (3), pp.2582-2589. ⟨10.1093/mnras/stx675⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebeb9a5534068d8a11535008cff80f83
https://hal.science/hal-02174544

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The millimeter IRAM-30m line survey toward IK Tau

Autor: José Cernicharo, Friedrich Wyrowski, Christian Balança, Marcelino Agúndez, L. Velilla Prieto, G. Quintana-Lacaci, C. Sánchez Contreras, J. Alcolea, Fabrice Herpin, Karl M. Menten, Valentin Bujarrabal

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 597, pp.id.A25. ⟨10.1051/0004-6361/201628776⟩
Astronomy and Astrophysics-A&A, 2017, 597, pp.id.A25. ⟨10.1051/0004-6361/201628776⟩
Digital.CSIC. Repositorio Institucional del CSIC
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[Aims] We aim to investigate the physical and chemical properties of the molecular envelope of the oxygen-rich AGB star IK Tau.
[Methods] We carried out a millimeter wavelength line survey between ∼79 and 356 GHz with the IRAM-30 m telescope.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbfd62ad8579eeb34908baa1004ce28b
http://arxiv.org/abs/1609.01904

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Collisional excitation of sulfur dioxide by molecular hydrogen in warm molecular clouds

Autor: N. Feautrier, A. Spielfiedel, Christian Balança

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2016, 460 (4), pp.3766-3771. ⟨10.1093/mnras/stw1274⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 460 (4), pp.3766-3771. ⟨10.1093/mnras/stw1274⟩

International audience

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4205ffced7948874644a4719b9643e8f
https://hal.science/hal-02317815

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