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

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January 16-18, 2006

Royal Society Discussion Meeting (Jan 16-17)

and a Satellite Meeting (Jan 18)

Physics, Chemistry, and Astronomy of H₃⁺

Organized by T. R. Geballe, D. Gerlich, T. Oka and J. Tennyson

(B. J. McCall, Secretary)

Monday 16 January 2006

9.15	Takeshi Oka University of Chicago, USA Introductory Remarks
Session 1
Chair	Richard Porter SUNY, Stony Brook, USA
9.30	Werner Kutzelnigg University of Bochum, Germany Explicity correlated potential energy surface of H3+, including relativistic and adiabatic corrections
10.00	Discussion
10.15	Alexander Alijah University of Coimbra, Portugal H3+ in the electronic triplet state
10.45	Discussion
11.00	Tea and Coffee
Session 2
Chair	James Watson National Research Council, Canada
11.30	Jennifer Gottfried University of Chicago, USA Near-infrared spectroscopy of H3+ above the barrier to linearity
11.50	Discussion
12.00	Juraj Glosik Charles University Prague, Czech Republic Action spectroscopy of H3+ using overtone excitation
12.20	Discussion
12.30	Takayoshi Amano Ibaraki University, Japan Submillimeter-wave lines of H2D+ and D2H+ as probes into chemistry of cold dark clouds
12.50	Discussion
13.00	Lunch
Session 3
Chair	Mats Larsson Stockholm University, Sweden
14.00	Benjamin McCall University of Illinois at Urbana-Champaign, USA Dissociative recombination of cold H3+ and its interstellar implications
14.30	Discussion
14.45	Chris Greene University of Colorado, USA How H3+ and its isotopomers recombine efficiently at low energies
15.15	Discussion
15.30	Tea and Coffee
Session 4
Chair	Alexander Dalgarno Harvard University, USA
16.00	Andreas Wolf Max-Planck Institute für Kernphysik, Germany Effects of molecular rotation in low-energy electron collisions with H3+
16.30	Discussion
16.45	Dieter Gerlich Technical University of Chemnitz, Germany Dynamical constraints and nuclear spin caused restrictions in H+ + H2, H3+ + H2, and deuterated variants
17.15	Discussion
17.30	Close

Tuesday 17 January 2006

Session 5
Chair	Alan Carrington University of Southampton
9.15	Daniel Zajfman Weizmann Institute of Science, Israel and Max-Planck Institute für Kernphysik, Germany Nuclear dynamics in the dissociative recombination of H3+ and its isotopomers
9.45	Discussion
10.00	Jonathan Tennyson University College London The role of asymptotic vibrational states in H3+
10.30	Discussion
10.45	Tea and Coffee
Session 6
Chair	John Black Onsala Space Observatory, Sweden
11.15	Thomas Geballe Gemini Observatory, USA H3+ toward and within the Galactic center
11.45	Discussion
12.00	Harvey Liszt National Radio Astronomy Observatory, USA What do we learn about the diffuse interstellar medium from observations of H3+?
12.30	Discussion
12.45	Lunch
Session 7
Chair	Eric Herbst Ohio State University, USA
14.00	Helen Roberts University of Manchester Deuterated H3+ as a probe of isotope fractionation in star-forming regions
14.30	Discussion
14.45	Charlotte Vastel California Institute of Technology, USA Deuterium enhancement in H3+ in pre-stellar cores
15.05	Discussion
15.15	Cecilia Ceccarelli Laboratoire d'Astrophysique de l'Observatoire de Grenoble, France Observations and theory of deuterated H3+ in the proto-planetary disks
15.35	Discussion
15.45	Tea and Coffee
Session 8
Chair	Robert Joseph Institute for Astronomy, University of Hawaii
16.15	Emmanuel Lellouch Observatoire de Paris, France Spectro-imaging observation of H3+ on Jupiter
16.35	Discussion
16.45	Steven Miller University College London H3+: the driver of giant planet atmospheres
17.15	Discussion
17.30	Close

Wednesday 18 January 2006 (Satellite Meeting)

Session 9
Chair	Brian Sutcliffe Universite Libre de Bruxelle, Belgium
9.00	Jürgen Hinze Universitat Bielefeld, Germany Rovibrational states of H3+
9.25	Discussion
9.30	Joel Bowman Emory University, USA A global potential energy surface, vibrational and reaction dynamics of H5+, H3+ + H2 and isotopomers
9.50	Discussion
9.55	Åsa Larson Royal Institute of Technology, Stockholm Theoretical study of the ion-pair formation in electronic recombination with H3+
10.15	Discussion
10.20	Tea and Coffee
Session 10
Chair	Evgueni Nikitin Israel Institute of Technology
10.50	Alexandre Faure Laboratoire d'Astrophysique de Grenoble, France Electron impact rotational excitation of H3+: Relevance for dissociation dynamics and thermalization
11.10	Discussion
11.15	Holger Kreckel Max-Planck Institute für Kernphysik, Germany Rotational and vibrational cooling of H3+ in laboratory experiments
11.35	Discussion
11.40	Simon Glover Astrophysikalisches Institut Potsdam, Germany H3+ cooling in primordial gas
12.00	Discussion
12.05	Alexander Turbiner ICN-UNAM, Mexico Molecular Systems in a Strong Magnetic Field
12.25	Lunch
Session 11
Chair	Martin Jungen University of Basel, Switzerland (to be confirmed)
14.00	Hanspeter Helm Albert-Ludwigs-Universität, Germany Experimental studies of non-adiabatic coupling in dissociation of excited H3 molecules
14.20	Discussion
14.25	Robert Continetti University of California, San Diego, USA Dissociation dynamics of Rydberg states of H3 and its isotopomers
14.45	Discussion
14.50	Stephan Schlemmer Universität zu Köln, Germany Probing H2D+ with FELIX and other laser sources
15.10	Discussion
15.15	Tea and Coffee
Session 12
Chair	Tom Millar University of Manchester
15.45	Miwa Goto Max-Planck Institut für Astronomie, Heidelberg, Germany Absorption line survey toward the Galactic center: stars in Quintuplet and Sgr A* clusters
16.05	Discussion
16.10	Floris van der Tak Max-Planck Institut für Radioastronomie, Bonn, Germany Observations and models of H2D+ in star-forming regions
16.30	Discussion
16.35	Franck Le Petit Observatoire de Paris, France H3+ in diffuse clouds: The question of ionization in the interstellar medium
16.55	Discussion
17.00	Greg Harris University College London The role of H3+ in very metal deficient cool stars
17.20	Discussion
17.25	Closing Jonathan Tennyson (to be confirmed) University College London

Poster Session

H₂D⁺: a light on the baryonic dark matter?, C. Dominik & C. Ceccarelli

Fesbach resonance of H₃⁺, M. Jungen & M. Lehner

High-resolution visible spectroscopy of H₃⁺, C. Morong, C. Neese, & T. Oka

H₃⁺ as a trap for noble gases, F. Pauzat & Y. Ellinger

Search for H₂ absorption lines toward the Galactic Centre, T. Usuda, M. Goto, N. Kobayashi, H. Terada, & K. S. Usuda

Possible configurations of clusters of H₃⁺ and H₂ and their energies, L. Ziemczonek, T. Wroblewski, & G. P. Karwasz

Ultracold molecular ions: towards precision spectroscopy of HD⁺, S. Schiller, B. Roth, H. Daerr, J. Koelemeu, & A. Nevsky

Deuterium chemistry in starforming regions, M. Emprectinger & M. C. Wiedner

The ion H₃⁺ in a strong magnetic field in linear configuration, A. Turbiner, J. C. Lopez Vieyra, & N. L. Guevara

Exotic ion H₃⁺⁺ in strong magnetic fields: low-lying states, A. Turbiner, J. C. Lopez Vieyra, & N. L. Guevara