Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.2820s&link_type=abstract
American Astronomical Society, DPS meeting #42, #28.20; Bulletin of the American Astronomical Society, Vol. 42, p.963
Astronomy and Astrophysics
Astrophysics
Scientific paper
We conducted a sensitive search for HDO and detected H2O and OH in the spectra of comet C/2007 N3 (Lulin) obtained by NIRSPEC at the Keck II telescope atop Mauna Kea, Hawaii. OH prompt emission is a direct proxy of H2O production and eliminates "inter-setting” calibration uncertainties in evaluating the HDO/H2O ratio. We report an upper limit for HDO/H2O, and spatial profiles, rotational temperatures, and production rates for H2O. The work of undergraduate student E. Sudholt was supported over 12 months by NSF Grant AST- 0807939 (PI/Co-PI Bonev/Gibb) and by the Goddard Center for Astrobiology (PI Mumma). Co-authors gratefully acknowledge support from the NSF Astronomy and Astrophysics Research Grants Program, and by the NASA's Planetary Astronomy, Planetary Atmospheres, and Astrobiology Programs.
Bonev Boncho P. .
DiSanti Michael A.
Gibb Erika Lynne
Magee-Sauer Karen
Mumma Michael J.
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