- Physical Review Journals
All JournalsPhysics Magazine

Physical Review A

Export citation

Export citation

Choose format for download:

Download Citation
  • Editors' Suggestion
  • Letter

Absolute measurements of state-to-state rotational energy transfer between CO and H2 at interstellar temperatures

Hamza Labiad1, Martin Fournier1, Laura A. Mertens1,2, Alexandre Faure3, David Carty4, Thierry Stoecklin5, Piotr Jankowski6, Krzysztof Szalewicz7, Sébastien D. Le Picard1 et al.

Ian R. Sims1,*

  • 1Univ Rennes, CNRS, IPR (Institut de Physique de Rennes) - UMR 6251, F-35000 Rennes, France
  • 2Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
  • 3Université de Grenoble Alpes, CNRS, IPAG (Institut de Planétologie et d'Astrophysique de Grenoble), F-38000 Grenoble, France
  • 4Durham University, Joint Quantum Centre Durham-Newcastle, Departments of Physics and Chemistry, Lower Mountjoy, South Road, Durham DH1 3LE, United Kingdom
  • 5Institut des Sciences Moléculaires, Université de Bordeaux, F-33405 Talence, France
  • 6Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, PL-87-100 Torun, Poland
  • 7Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA

  • *ian.sims@univ-rennes1.fr
PDF

Phys. Rev. A 105, L020802 – Published 23 February, 2022

DOI: https://doi.org/10.1103/PhysRevA.105.L020802

Abstract

Experimental measurements and theoretical calculations of state-to-state rate coefficients for rotational energy transfer of CO in collision with H2 are reported at the very low temperatures prevailing in dense interstellar clouds (5–20 K). Detailed agreement between quantum state-selected experiments performed in cold supersonic flows using time-resolved infrared–vacuum-ultraviolet double-resonance spectroscopy and close-coupling quantum scattering calculations confirms the validity of the calculations for collisions between the two most abundant molecules in the interstellar medium.

View figure in article

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.
Article Available via CHORUS
Download Accepted Manuscript

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Phys. Rev. A 105, L020802– Published 23 February, 2022
  • Received 1 October 2020
  • Accepted 21 December 2021
Crossmark - Check for updates button

©2022 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation