1. M. J. Mumma, N. Dello Russo, D. X. Xie, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
2. M. A. DiSanti, NASA Goddard Space Flight Center and Department of Physics, Catholic University of America, Washington, DC 20064, USA.
3. M. Fomenkova, Center for Astrophysics and Space Sciences, University of California, La Jolla, CA 92093-0111, USA.
4. K. Magee-Sauer, Department of Chemistry and Physics, Rowan College of New Jersey, Glassboro, NJ 08028, USA.
5. C. D. Kaminski, NASA Infrared Telescope Facility, Hilo, HI 96720, USA.