Cometary nuclei contain the least modified material from the formative epoch of our
planetary system, and their compositions reflect a range of processes experienced by …

We present an analysis of Spitzer Infrared Spectrograph observations of H 2 O, OH, HCN, C
2 H 2, and CO 2 emission, and Keck-NIRSPEC observations of CO emission, from a diverse …

We present detections of numerous 10-20 μm H 2 O emission lines from two protoplanetary
disks around the T Tauri stars AS 205A and DR Tau, obtained using the InfraRed …

Abstract Comet C/2016 R2 (PanSTARRS) has a peculiar volatile composition, with CO
being the dominant volatile, as opposed to H 2 O, and one of the largest N 2/CO ratios ever …

Tracing measured compositions of comets to their origins continues to be of keen interest to
cometary scientists and to dynamical modelers of Solar System formation and evolution …

This revised edition places a unique emphasis on all the new results from ground-based,
satellites and space missions? detection of molecule H2 and prompt emission lines of OH …

A major upgrade to the NIRSPEC instrument at the Keck II telescope was successfully
completed in time for near-infrared spectroscopic observations of comet 46P/Wirtanen …

We used the new high spectral resolution cross-dispersed facility spectrograph, iSHELL, at
the NASA Infrared Telescope Facility on Maunakea, HI, to observe Jupiter-family comet …

We present a comprehensive analysis of the chemical composition of the Jupiter-family
comet and potential spacecraft target 46P/Wirtanen, in the near-IR wavelength range. We …

The highly favorable 2017 apparition of 2P/Encke allowed the first comprehensive
comparison of primary volatile abundances in a given comet across multiple apparitions …