Publications HAL

Article dans une revue

titre
Benzonitrile as a Proxy for Benzene in the Cold ISM: Low-temperature Rate Coefficients for CN + C 6 H 6
auteur
Ilsa R. Cooke, Divita Gupta, Joseph Messinger, Ian R Sims
article
The Astrophysical journal letters, 2020, 891 (2), pp.L41. ⟨10.3847/2041-8213/ab7a9c⟩
DOI
DOI : 10.3847/2041-8213/ab7a9c
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02510885/file/Cooke%20et%20al-2020-Benzonitrile%20as%20a%20Proxy%20for%20Benzene%20in%20the%20Cold%20ISM-Version%20of%20Record.pdf BibTex
titre
Low Temperature Kinetics of the Reaction Between Methanol and the CN Radical
auteur
Divita Gupta, Sidaty Cheikh Sid Ely, Ilsa R. Cooke, Théo Guillaume, Omar Abdelkader Khedaoui, Thomas Hearne, Brian Hays, Ian R Sims
article
Journal of Physical Chemistry A, 2019, 123 (46), pp.9995-10003. ⟨10.1021/acs.jpca.9b08472⟩
DOI
DOI : 10.1021/acs.jpca.9b08472
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https://hal.archives-ouvertes.fr/hal-02360549/file/Gupta%20et%20al-2019-Low%20Temperature%20Kinetics%20of%20the%20Reaction%20Between%20Methanol%20and%20the%20CN%20Radical.pdf BibTex
titre
Collisional excitation of HNC by He found to be stronger than for structural isomer HCN in experiments at the low temperatures of interstellar space
auteur
Brian M. Hays, Divita Gupta, Théo Guillaume, Omar Abdelkader Khedaoui, Ilsa R. Cooke, Franck Thibault, François Lique, Ian R Sims
article
Nature Chemistry, 2022, ⟨10.1038/s41557-022-00936-x⟩
DOI
DOI : 10.1038/s41557-022-00936-x
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https://hal.archives-ouvertes.fr/hal-03687777/file/Hays%20et%20al%20-%202022%20-%20Collisional%20excitation%20of%20HNC%20by%20He%20found_HCNHNC_preproof.pdf BibTex
titre
Design and performance of an E-band chirped pulse spectrometer for kinetics applications OCS – He pressure broadening
auteur
Brian M. Hays, Théo Guillaume, Thomas Hearne, Ilsa R. Cooke, Divita Gupta, Omar Abdelkader Khedaoui, Sébastien D. Le Picard, Ian R Sims
article
Journal of Quantitative Spectroscopy and Radiative Transfer, 2020, 250, pp.107001. ⟨10.1016/j.jqsrt.2020.107001⟩
DOI
DOI : 10.1016/j.jqsrt.2020.107001
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02638438/file/Hays%20et%20al-2020-Design%20and%20performance%20of%20an%20E-band%20chirped%20pulse%20spectrometer%20for%20kinetics%20applications.pdf BibTex
titre
Rate Constants of the CN plus Toluene Reaction from 15 to 294 K and Interstellar Implications
auteur
Joseph P. Messinger, Divita Gupta, Ilsa R. Cooke, Mitchio Okumura, Ian R Sims
article
Journal of Physical Chemistry A, 2020, 124 (39), pp.7950-7958. ⟨10.1021/acs.jpca.0c06900⟩
DOI
DOI : 10.1021/acs.jpca.0c06900
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-02996160/file/Messinger%20et%20al-2020-Rate%20Constants%20of%20the%20CN%20%2B%20Toluene%20Reaction%20from%2015%20%E2%80%93%20294%20K%20and%20Interstellar.pdf BibTex
titre
Vacuum ultraviolet photoabsorption spectra of an in-situ synthesized peptide precursor: hydroxylamine on a cold astrochemical dust analogue
auteur
R. Thombre, Divita Gupta, S. Pavithraa, J- Lo, S-L Chou, Y-J Wu, R. Ramachandran, K. K. Rahul, B-M Cheng, H. Hill, Anil Bhardwaj, B. N. Rajasekhar, N. J. Mason, B. Sivaraman
article
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2022, 76 (3), pp.53. ⟨10.1140/epjd/s10053-022-00365-y⟩
DOI
DOI : 10.1140/epjd/s10053-022-00365-y
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https://hal.archives-ouvertes.fr/hal-03629815/file/Thombre%20et%20al%20-2022-Vacuum%20ultraviolet%20photoabsorption%20spectra%20of%20an%20in-situ%20synthesized%20peptide.pdf BibTex

Communication dans un congrès

titre
Kinetics of the reaction between the CN radical and methanol at low temperatures using the CRESU technique
auteur
Ilsa R. Cooke, Divita Gupta, Sidaty Cheikh Sid Ely, Théo Guillaume, Thomas Hearne, Brian M. Hays, Ian R Sims
article
38EME EDITION DU COLLOQUE ANNUEL DU GROUPE FRANÇAIS DE CINETIQUE ET PHOTOCHIMIE (GFCP), Jun 2019, Rennes, France
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titre
Recent developments in Chirped Pulse in Uniform Flow techniques for the measurement of low-temperature reaction product branching ratios
auteur
Théo Guillaume, Divita Gupta, Brian M. Hays, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Thomas Hearne, Myriam Drissi, Ian R Sims
article
APS March Meeting 2021, Mar 2021, Virtuel, États-Unis
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titre
Optimisation et développement de la technique CPUF (Chirped Pulse in Uniform Flow) pour la mesure de rapport de branchement à basse température de système d'intérêt astrophysique.
auteur
Théo Guillaume, Divita Gupta, Brian M. Hays, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Thomas Hearne, Myriam Drissi, Ian R Sims
article
Workshop “Physical and chemical processes of astrophysical interest”, Jun 2021, St Florent, France
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titre
Inside the chemistry of a molecular cloud
auteur
Théo Guillaume, Divita Gupta, Brian M. Hays, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Myriam Drissi, Ian R Sims
article
Journée des doctorants : PhDay 2021, Nov 2021, Rennes, France
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titre
Experimental determination of reaction product branching ratios at low temperature for astrochemistry using chirped pulse microwave spectroscopy
auteur
Théo Guillaume, Omar Abdelkader Khedaoui, Brian M. Hays, Thomas Hearne, Ilsa R. Cooke, Divita Gupta, Joseph Messinger, Ian R Sims
article
38EME EDITION DU COLLOQUE ANNUEL DU GROUPE FRANÇAIS DE CINETIQUE ET PHOTOCHIMIE (GFCP), Jun 2019, Rennes, France
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titre
Probing low temperature product branching ratios for the reaction of CN radical with propene
auteur
Divita Gupta, Brian Hays, Myriam Drissi, Théo Guillaume, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Alberto Macario Farto, Ian R Sims
article
Quadmarts, Jun 2022, Lille, France
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titre
Low temperature product branching ratios for the reaction of CN radical with propene
auteur
Divita Gupta, Brian Hays, Myriam Drissi, Théo Guillaume, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Alberto Macario Farto, Ian R Sims
article
Collisional excitation of (reactive) astrophysical molecules and its applications, Jun 2022, Saint-Florent, France
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titre
A rocket reactor and a microwave to understand the chemistry in space
auteur
Divita Gupta, Myriam Drissi, Brian M. Hays, Ilsa R. Cooke, Théo Guillaume, Omar Abdelkader Khedaoui, Alberto Macario Farto, Ian R Sims
article
Journée des doctorants : PhDay 2022, Nov 2022, Rennes, France
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titre
Chirped pulse mm-wave and pulsed laser studies of gas phase molecular collisions for astrochemical applications
auteur
Brian M. Hays, Thomas Hearne, Ilsa R. Cooke, Théo Guillaume, Omar Abdelkader Khedaoui, Divita Gupta, Robert Georges, Sébastien D. Le Picard, Ian R Sims
article
Tuesday UVa / NRAO Astronomy (TUNA) Lunch Talk (moved online), Mar 2020, Charlottesville, United States
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titre
Detecting branching ratios of chemical reactions at astrophysically relevant temperatures using chirped pulse millimeter wave spectroscopy in continuous CRESU flows
auteur
Brian M. Hays, Théo Guillaume, Thomas Hearne, Omar Abdelkader Khedaoui, Ilsa R. Cooke, Divita Gupta, Sébastien D. Le Picard, Robert Georges, Abdessamad Benidar, Ludovic Biennier, Ian R Sims
article
International Symposium on Molecular Spectroscopy, Jun 2019, Champaign-Urbana, United States
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titre
A new E-band chirped pulse spectrometer for chemical kinetics applications
auteur
Brian M. Hays, Théo Guillaume, Thomas Hearne, Omar Abdelkader Khedaoui, Ilsa R. Cooke, Divita Gupta, Sébastien D. Le Picard, Robert Georges, Abdessamad Benidar, Ludovic Biennier, Ian R Sims
article
International Symposium on Molecular Spectroscopy, Jun 2019, Champaign-Urbana, United States
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titre
Experimental determination of reaction product branching ratios at low temperatures for astrochemistry
auteur
Brian M. Hays, Thomas Hearne, Ilsa R. Cooke, Théo Guillaume, Omar Abdelkader Khedaoui, Divita Gupta, Robert Georges, Sébastien D. Le Picard, Ian R Sims
article
XXVII Dynamics of Molecular Collisions Conference (DMC), Jul 2019, Big Sky, Montana, United States
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titre
Chirped Pulse Microwave Fourier-Transform Spectrometry for the Determination of Product Branching Ratios
auteur
Thomas Hearne, Brian M. Hays, Ilsa R. Cooke, Théo Guillaume, Omar Abdelkader Khedaoui, Divita Gupta, Ian R Sims
article
26th Colloquim on High Resolution Molecular Spectroscopy, Aug 2019, Dijon, France
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titre
Product branching ratios for astrochemical reactions determined in low temperature experiments
auteur
Thomas Hearne, Brian M. Hays, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Théo Guillaume, Divita Gupta, Ian R Sims
article
Semaine de l'Astrophysique Française, May 2019, Nice, France
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titre
Signal to Noise Modelling and Optimisation for Chirped Pulse in Uniform Flow Experiments
auteur
Thomas Hearne, Brian M. Hays, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Théo Guillaume, Divita Gupta, Ian R Sims
article
Second QUADMARTS International Research Network Workshop, LRGP, Lorraine University, May 2019, Nancy, France
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titre
Experimental studies of vibrational relaxation and formation of weakly bound complexes in cold uniform supersonic flows
auteur
Alberto Macario Farto, Myriam Drissi, Omar Abdelkader Khedaoui, Théo Guillaume, Brian Hays, Divita Gupta, Ilsa R. Cooke, Ian R Sims
article
Collisional excitation of astrophysical molecules and its applications, Jun 2022, Saint Florent, France
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titre
Dynamics and kinetics studied by chirped pulse microwave spectroscopy in cold uniform supersonic flows
auteur
Alberto Macario Farto, Myriam Drissi, Omar Abdelkader Khedaoui, Théo Guillaume, Brian Hays, Ian R Sims, Divita Gupta, Ilsa R. Cooke
article
International Symposium on Molecular Spectroscopy ( ISMS ) 2022, Jun 2022, Urbana-Champaign, United States
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titre
Study of complexation kinetics processes by rotational spectroscopy coupled with uniform supersonic flows
auteur
Alberto Macario Farto, Myriam Drissi, Omar Abdelkader Khedaoui, Théo Guillaume, Brian Hays, Divita Gupta, Ilsa R. Cooke, Ian R Sims
article
QUADMARTS :QUAntitative Detection of Molecular And radical Trace Species, Jun 2022, Lille, France
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titre
Experimental determination of reaction product branching ratios at low temperatures for astrochemistry
auteur
Ian R Sims, Brian M. Hays, Théo Guillaume, Thomas Hearne, Ilsa R. Cooke, Omar Abdelkader Khedaoui, Divita Gupta
article
The First International Astronomical Union Symposium on Laboratory Astrophysics, IAUS 350: Laboratory Astrophysics: from Observations to Interpretation, Apr 2019, Cambridge, United Kingdom
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Poster de conférence

titre
Vacuum Ultraviolet photoabsorption of molecules with astrochemical and astrobiological relevance: Benzonitrile and Hydroxylamine
auteur
Divita Gupta, Rebecca Thombre, Jen Iu Lo, Bing-Ming Cheng, Raja Sekhar B.N., Nigel Mason, Bhalamurugan Sivaraman
article
The First International Astronomical Union Symposium on Laboratory Astrophysics, IAUS 350: Laboratory Astrophysics: from Observations to Interpretation, Apr 2019, Cambridge, United Kingdom
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https://hal.archives-ouvertes.fr/hal-02115070/file/Poster_BN_NA-final.pdf BibTex
titre
Kinetics of the reaction between the CN radical and methanol at low temperatures using the CRESU technique
auteur
Divita Gupta, Théo Guillaume, Sidaty Cheikh Sid Ely, Ilsa R. Cooke, Thomas Hearne, Brian M. Hays, Omar Abdelkader Khedaoui, Ian R. Sims
article
The First International Astronomical Union Symposium on Laboratory Astrophysics, IAUS 350: Laboratory Astrophysics: from Observations to Interpretation, Apr 2019, Cambridge, United Kingdom
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titre
A New Chirped Pulse Microwave Spectrometer Dedicated to the Measurement of Reaction Product Branching Ratios for Astrochemistry
auteur
Brian M. Hays, Thomas Hearne, Théo Guillaume, Omar Abdelkader Khedaoui, Ilsa R. Cooke, Divita Gupta, Ian R Sims
article
The First International Astronomical Union Symposium on Laboratory Astrophysics, IAUS 350: Laboratory Astrophysics: from Observations to Interpretation, Apr 2019, Cambridge, United Kingdom.
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titre
A New Chirped Pulse Microwave Spectrometer Dedicated to the Measurement of Reaction Product Branching Ratios for Astrochemistry
auteur
Brian M. Hays, Thomas Hearne, Théo Guillaume, Omar Abdelkader Khedaoui, Ilsa R. Cooke, Divita Gupta, Ian R Sims
article
Second QUADMARTS International Research Network Workshop, LRGP, Lorraine University, May 2019, Nancy, France
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titre
Reaction Kinetics of Complexation Studied by Rotational Spectroscopy Coupled with Uniform Supersonic Flows
auteur
Alberto Macario Farto, Myriam Drissi, Omar Abdelkader Khedaoui, Théo Guillaume, Brian Hays, Divita Gupta, Ilsa R. Cooke, Ian R Sims
article
Journée des doctorants : PhDay 2022, Nov 2022, Rennes, France
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titre
Reaction Kinetics of Complexation Studied by Rotational Spectroscopy Coupled with Uniform Supersonic Flows
auteur
Alberto Macario Farto, Myriam Drissi, Omar Abdelkader Khedaoui, Théo Guillaume, Brian Hays, Divita Gupta, Ilsa R. Cooke, Ian R Sims
article
26th International Symposium on Gas Kinetics and Related Phenomena, Aug 2022, Rennes, France
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Thèse

titre
Rate coefficients and branching ratio measurements for reactions of astrochemical relevance involving CN radicals
auteur
Divita Gupta
article
Chemical Physics [physics.chem-ph]. Université Rennes 1, 2021. English. ⟨NNT : 2021REN1S129⟩
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https://theses.hal.science/tel-03934779/file/GUPTA_Divita.pdf BibTex