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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Dear Colleague,

We are writing you to announce a Royal Society Discussion Meeting entitled

"Physics, Chemistry, and Astronomy of H₃⁺"

to be held at the Royal Society in London from January 16-17, 2006.

This meeting will be accompanied by a one-day satellite meeting on the 18th on the same subject.

The Meeting is a second attempt to assemble researchers from different fields in which H₃⁺ plays a major role and to discuss the most fundamental molecular ion from a variety of perspectives. The recent exciting developments related to H₃⁺ and deuterated species make this discussion particularly timely. The discussions will include following subjects:

The Royal Society Discussion Meeting on the 16th and 17th will include 18 invited talks with plenty of discussion time, as well as one or two poster sessions depending upon demand. The talks and discussions will be published in the Philosophical Transactions of the Royal Society of London. The meeting on the 18th will include 13 invited talks with discussions.

If you would like to receive further mailings and information about this discussion meeting, please complete the pre-registration form on our website at http://h3plus.uiuc.edu/rs2006.

Sincerely,

Takeshi Oka
Tom Geballe
Dieter Gerlich
Jonathan Tennyson

Ben McCall (Secretary)