Onset of Gaseous Emission in Deep Impact Target 9P/Tempel 1 from Keck Telescope

Details Onset of Gaseous Emission in Deep Impact Target 9P/Tempel 1 from Keck Telescope Onset of Gaseous Emission in Deep Impact Target 9P/Tempel 1 from Keck Telescope

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005dps....37.4410y&link_type=abstract

American Astronomical Society, DPS meeting #37, #44.10; Bulletin of the American Astronomical Society, Vol. 37, p.716

Astronomy and Astrophysics

Astronomy

Scientific paper

As part of pre-impact target characterization efforts, long-slit spectroscopic observations were obtained with the LRIS spectrograph on the Keck I telescope on Mauna Kea, Hawaii on December 4, 2004, January 6 and June 7, 2005 to monitor the onset of the gaseous species: CN, C2, NH2 and C3. The December data showed weak but detectable emission of CN, and this feature developed to a strong band by early January 2005. The June data showed emissions from OH, NH, CN, C2, C3 and NH2. A simple Haser model was used to convert the column densities to gas production rates. In January the production derived production rates were log Q(CN)=23.4, log Q(C3) = 23.0, log Q(C2) = 23.3. Support for this work was provided through University of Maryland and University of Hawaii subcontract Z667702, which was awarded under prime contract NASW-00004 from NASA.

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