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Presentation
New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission
47th American Astronomical Society Division for Planetary Studies Meeting (2015)
  • Jason B. Corliss, University of Arizona
  • Walt M. Harris, University of Arizona
  • Edwin J. Mierkiewicz, Embry-Riddle Aeronautical University - Daytona Beach
  • Frederick L. Roesler, University of Wisconsin - Madison
Abstract
Thorough analysis of narrow bandpass high spectral resolution (R ≈ 100,000) observations of [O 1 D] 630nm emission from comet 9P/Tempel 1 taken over a ~1’ FOV both before and after the Deep Impact event provides evidence for a long-lived high velocity jet-like feature. The observations were obtained with an all-reflective spatial heterodyne spectrometer (SHS) coupled to the McMath-Pierce Main telescope. Several spectra centered on Tempel 1 were acquired during the period of 07/04/2005-07/06/2005 UT. We report here on the presence and evolution of a cometary emission feature that appears consistently and exclusively in the post-impact narrow-band spectra centered near the telluric [O 1 D] 630nm emission line. This cometary emission feature shows substantial and distinct Doppler shifts over consecutive post-impact observational nights and if the feature is
the anticipated [O 1 D], the corresponding line of sight velocities are -13.4 to -6.5 km/s, relative to the comet’s rest frame.
Keywords
  • Comet 9P/Tempel 1,
  • cometary emission
Publication Date
November, 2015
Location
National Harbor, MD
Comments
Poster id.415.24
Citation Information
Jason B. Corliss, Walt M. Harris, Edwin J. Mierkiewicz and Frederick L. Roesler. "New Analysis of the Deep Impact Comet 9P/Tempel 1 Event Using High Resolution Spectroscopy: Evidence From 630 NM [O( 1 D)] Emission" 47th American Astronomical Society Division for Planetary Studies Meeting (2015)
Available at: http://works.bepress.com/edwin_mierkiewicz/39/