Planetary Astronomy Late-morning Seminar for 2017-10-30

Series: Planetary Astronomy Late-morning Seminar
Date: Monday 30-Oct-2017
Time: 11:15-12:15
Location: Atlantic 1250
Speaker: Adam McKay (GSFC)
Title: Cometary Composition Studied Via Optical and IR Spectroscopy

Due to their primitive nature, comets are valuable for studying the formation of volatiles in the protosolar disk and their subsequent incorporation into planetary bodies. Over the past 20 years both optical and IR spectroscopy of cometary comae at high spectral resolution have become commonplace, expanding our understanding of cometary volatile composition, cometary activity, and coma photochemistry. In this talk I will highlight recent results aimed at studying cometary activity and composition through optical and IR spectroscopy. I will also discuss studies of the photochemistry occurring in cometary comae and the importance of both optical and IR observations for understanding coma photochemistry. In particular I will discuss recent results from the new iSHELL instrument on NASA IRTF and the NIRSPEC instrument on Keck II pertaining to comets 45P/Honda-Mrkos-Pajdusakova and 41P/Tuttle-Giacobini-Kresak. Both of these comets are members of the Jupiter Family dynamical class of comets, a dynamical class that is underrepresented in compositional studies of comets, especially at IR wavelengths.

For further information contact PALS coordinator Dr. Matthew Knight at or (301)-405-2629.


Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.


Directions and information about parking can be found here.

This page was automatically generated on: 27-Oct-2017.