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Erika Gibb - University of Missouri, St. Louis

Wednesday, May 27 – 5:00-5:45PM

 

“From Clouds to Comets: Ices in Interstellar Environments”

 

The launches of the Infrared Space Observatory in 1995 and the Spitzer Space Telescope in 2003 have dramatically improved our understanding of the nature and evolution of volatile molecules in the interstellar medium. Nonetheless, there are still several solid state features that defy firm identification, and the connection between ices and gas phase molecules is not well understood. With ground based, high-resolution infrared studies of the gas phase component of the interstellar medium and comets, combined with ground and space-based observations of the solid volatile component, we are now poised to form a deeper understanding of the processes that lead to volatile production and destruction in star formation environments. I will discuss some recent work that has been done on ice and gas toward low mass young stars and the implications for the early history of our solar system as inferred by comets.

 

Related Reference(s):

B. P. Bonev, M. J. Mumma, E. L. Gibb, M. A. DiSanti, K. Magee-Sauer, G. L. Villanueva, and R. Ellis, “Comet C/2002 Q2 (Machholz): Parent Volatiles, A Search For Deuterated Methane, and Constraint on the CH 4 Spin Temperature,” ApJ, In press.

E. L. Gibb, K. A. Van Brunt, S. D. Brittain, and T. W. Rettig, “Warm HCN, C 2H 2, and CO in the Disk of GV Tau,” ApJ, 660, 1572-1579 (2007).

E. L. Gibb, D. C. B. Whittet, A. C. A. Boogert, A. G. G. M. Tielens, “Interstellar Ice: The Infrared Space Observatory Legacy,” ApJS, 151, 35-73 (2004).