Oct 19 – 22, 2011
Hotel Roanoke, Roanoke VA
US/Eastern timezone

Terahertz Rotational Spectroscopy of the v5/2v9 Dyad of Nitric Acid

Oct 20, 2011, 2:06 PM
12m
Crystal Ballroom C (Hotel Roanoke, Roanoke VA)

Crystal Ballroom C

Hotel Roanoke, Roanoke VA

Speaker

Paul Helminger (University of South Alabama)

Description

Our studies of the terahertz rotational spectrum of nitric acid now include the ground state and the four lowest excited states. We report good progress in the assignment and analysis of the next higher energy states, the v5/2v9 interacting states. This very complex spectrum includes torsional splitting of both states and Fermi and Coriolis type interactions between them. The current analysis includes both microwave and infrared transitions for improved stability. Microwave studies of the rotational spectrum of the nitric acid molecule in the ground and excited vibration states contribute both to a better understanding of this fundamental molecule and to the construction of accurate spectral maps for remote sensing in the atmosphere.

Co-authors

Douglas Petkie (Wright State University) Frank De Lucia (Ohio State University) Ivan Medvedev (Wright State University)

Presentation materials