Physics, Chemistry, and Astronomy of H3+

Collage by C. M. Lindsay; H3+ laboratory spectrum from A. R. W. McKellar; Jupiter H3+ emission image from J. E. P. Connerney.

February 9-11, 2012

Royal Society Discussion Meeting (Feb 9-10)

and a Satellite Meeting (Feb 11)

Chemistry, Astronomy, and Physics of H3+

Organized by T. Oka, M. Larsson, S. Miller, and S. Schelmmer

(B. J. McCall, Secretary)

Thursday 9 February 2012

9.00 Jonathan Tennyson
University College London, UK
Welcome from Royal Society
9.15 Takeshi Oka
University of Chicago, USA
Introductory Remarks
Talk (PDF)

Session 1: Theory and Spectroscopy

Chair Ralph Jaquet
University Siegen, Germany
9.30 Ludwik Adamowicz
University of Arizona, USA
Progress in calculating the potential energy surface of H3+
Talk (PPTX)
10.00 Discussion
10.15 Oleg Polyansky
Russian Academy of Science, Russia
Spectroscopy of H3+ based on a new high accuracy global PES and DMS
Talk (PPTX)
10.45 Discussion
11.00 Coffee
11.30 Annemieke Petrignani
Leiden Observatory, Netherlands
Visible transitions from ground-state H3+ and their Einstein B coefficients measured with high-sensitivity action spectroscopy
Talk (PPT)
12.00 Discussion

Session 2: Chemistry

Chair Dieter Gerlich
Technische Universitat Chemnitz, Germany
13.30 Stephan Schlemmer
University of Cologne, Germany
Cold trap experiments on the H3+ + O2 proton transfer
Talk (PDF)
14.00 Discussion
14.15 Ben McCall
University of Illinois at Urbana-Champaign
The ortho/para ratio of H3+ in laboratory and astrophysical plasmas
Talk (PDF)
14.45 Discussion
15.00 Tea

Session 3: Dissociative Recombination

Chair Chris Greene
Univerity of Colorado at Boulder, USA
15.30 Christian Jungen
University of Paris South, France
The Jahn-Teller effect in the 3pe' Ryderg state of H3: Review of experimental and ab initio studies
Talk (PPT)
16.00 Discussion
16.15 Holger Kreckel
Max Planck Institute for Nuclear Physics, Germany
Storage ring measurements of the dissociative recombination of H3+
Talk (PDF)
16.45 Discussion
17.00 Mats Larsson
University of Stockholm, Sweden
Dissociative recombination of H3+ ten years in retrospect
Talk (PPTX)
17.30 Discussion
17.45 Close

JJ Thomson H3+ Centennial Dinner

Helge Kragh
Aarhus University, Denmark
A controversial molecule: the early history of H3 and H3+
Talk (PDF)

Friday 10 February 2012

Session 4: Cosmic rays

Chair William Klemperer
Harvard University, USA
9.15 John Black
Chalmers University of Technology, Sweden
H3+ at the interface between astrochemistry and astro-particle physics
Talk (PDF)
9.45 Discussion
10.00 Nick Indriolo
Johns Hopkins University, USA
The distribution of cosmic-ray ionization rates in diffuse molecular clouds as probed by H3+
Talk (PPTX)
10.30 Discussion
10.45 Coffee

Session 5: Galactic Center

Chair Evelyne Roueff
Observatoire de Paris, France
11.00 Tom Geballe
Gemini Observatory, USA
Exploring the Central Molecular Zone of the Galaxy using spectroscopy of H3+ and CO
Talk (PDF)
11.30 Discussion
11.45 Darek Lis
California Institute of Technology, USA
Hot metastable hydronium ion (H3O+) in the Galactic Center
Talk (PDF) Preprint (PDF)
12.15 Discussion
12.30 Lunch

Session 6: Interstellar Chemistry

Chair Tom Millar
Queen's University Belfast, Northern Ireland
14.00 Maryvonne Gerin
LERMA, Observatoire de Paris, ENS, and CNRS, France
Hydride spectroscopy of the diffuse interstellar medium: new clues on the fraction of molecular gas and cosmic ray ionization rate in relation with H3+
Talk (PPT)
14.30 Discussion
14.45 Floris van der Tak
SRON, Netherlands
Using observations of deuterated H3+ and other molecular ions to understand the formation of stars and planets
Talk (PDF)
15.15 Discussion
15.30 Tea
16.00 Laurent Pagani
Observatoire de Paris & CNRS, France
H2, H3+ and the age of dark clouds and prestellar cores
Talk (PDF)
16.30 Discussion

Session 7: Planetary ionospheres

Chair Steven Miller
University College London, UK
16.45 Tom Stallard
University of Leicester, UK
H3+ in Gas Giant ionospheres
Talk (PPT)
17.15 Discussion
17.30 Jonathan Tennyson
University College London, UK
Closing remarks
Talk (PPT)
18.00 Close

Saturday 11 February 2012 (Satellite Meeting)

Session 1: Theory

Chair Alex Alijah
University of Reims, France
9.00 Ralph Jaquet
University of Siegen, Germany
Non-adiabatic calculations for rovibrational states of H2, H2+, and H3+
Talk (PDF)
9.25 Rita Prosmiti
CSIC, Spain
A theoretical spectral survey of H5+ and isotopologs
Talk (PDF)

Session 2: Spectroscopy

Chair Takayoshi Amano
University of Waterloo, Canada
9.55 Jow-Tsong Shy
National Tsing Hua University, Taiwan
Observation of the Infrared Saturation spectrum of H3+
Talk (PDF)
10.20 Viatcheslav Kokoouline
University of Central Florida, USA
The H3- molecular ion as probe for H- in the interstellar medium?
Talk (PDF)
10.45 Coffee and Tea

Session 3: Chemistry

Chair Ben McCall
University of Illinois at Urbana-Champaign, USA
11.15 Radek Plasil
Charles University Prague, Czech Republic
Binary and ternary association of H+ + H2
Talk (PDF)
11.40 Francoise Pauzat and Yves Ellinger
Universite Pierre et Marie Curie, France
and Olivier Mousis
Besancon Observatory, France
H3+ versus H2O: Competition for the trapping of noble gases and Implication for the outer solar system
Talk (PPT)
12.15 Lunch

Session 4: Recombination

Chair Andreas Wolf
Max-Planck Institute for Nuclear Physics, Germany
13.30Juraj Glosik
Charles University Prague, Czech Republic
State selective recombination of H3+
Talk (PDF)
13.55Rainer Johnsen
University of Pittsburgh, USA
Kinetic processes in recombining H3+ plasmas
Talk (PDF) Preprint (PDF)
14.20Rich Thomas
Stockholm University, Sweden
DESIREE: A unique cryogenic electrostatic storage ring for merged ion-beams studies
Talk (PPT)
14.45 Coffee and Tea

Session 5: Astronomy

Chair Takeshi Oka
University of Chicago, USA
15.15 Peter Schilke
University of Cologne, Germany
Comparison of velocity profiles of light hydrides in the Galactic Center region
Talk (PDF)
15.40 Miwa Goto
Max-Planck Institute for Astronomy, Germany
Looking at the Galactic center in the light of near-infrared spectroscopy of H3+ and CO
Talk (PDF)
16.15 Rowin Meijerink
Kapteyn Astronomical Institute, Netherlands
H3+ in high redshift AGN
Talk (PPTX)
17.05 Takeshi Oka
University of Chicago, USA Closing Remarks
Talk (PDF)

Poster Session

ESR investigation of H4+ isolated in rare gas matrices, M. Correnti

Observation of the infrared saturation spectrum of H3+, J.-T. Shy

H6+ chemistry in solid parahydrogen, J. Kumagai, Y. Shimizu, and T. Kumada

Kinetic Processes in Recombining H3+ Plasmas, R. Johnsen

High accuracy calculations of the HeH2+ reactive system: from the potential energy surface to the quantum reaction dynamics, D. De Fazio, S. Cavalli, V. Aquilanti, L. Velilla, M. de Castro, A. Aguado, and M. Paniagua

Dissociative recombination of H3O+ and CH3+ ions at low energies, N. Douguet, A. E. Orel, C. H. Greene, and V. Kokoouline

Breaking a tetrahedral molecular ion with electrons: Study of NH4+, N. Douguet, V. Kokoouline, A. E. Orel

Recombination of D3+ ions with electrons, an application of absorption spectroscopy at 77-150 K, P. Dohnal, M. Hejduk, P. Rubovic, J. Varju, S. Opanasiuk, R. Plasil, J. Glosik

Quantum dynamics study of the H5+ cluster: full dimensional benchmark results on its vibrational states, A. Valdes, R. Prosmiti, G. Delgado-Barrio

Full-dimensional (15-dimensional) ab initio analytical potential energy surface for the H7+ cluster, P. Barragan, R. Prosmiti, Y. Wang, J. M. Bowman

Dalitz plots of 2s-vibrational states in H3 and D3: experiment and theory, P. Fechner, K. Mozer, H. Helm

Electric field induced predissociation of high Rydberg-states in H3 and D3, K. Mozer, P. Fechner, H. Helm

For additional information, contact
H3+ Resource Page
Royal Society Meetings Page
The Royal Society