Water production and release in comet 9P/Tempel 1

Details Water production and release in comet 9P/Tempel 1 Water production and release in comet 9P/Tempel 1

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005dps....37.4303d&link_type=abstract

American Astronomical Society, DPS meeting #37, #43.03; Bulletin of the American Astronomical Society, Vol. 37, p.711

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Scientific paper

Targeting water hot-band emission near 2.9 microns with state-of-the-art infrared spectrometers and telescopes has enabled the characterization of H2O production rates, rotational temperatures, and ortho-to-para ratios in fainter comets. H2O is the dominant cometary volatile so determining its production rate gives an estimate of the total volatile abundance and provides a basis of comparison for the abundance of other volatile species. High-resolution infrared observations of comet 9P/Tempel 1, the target of the Deep Impact mission, offer an excellent opportunity to monitor the change in the bulk volatile production and chemistry pre- to post-impact. H2O has been detected pre-impact in Tempel 1 (UT June 2, 2005), and observations are planned for the night of impact and after impact. Here we report results on water production and release in Tempel 1 and compare with other comets within our database.
This work was supported by the NASA Planetary Atmospheres Program under grant NNG05GA64G.

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