Accession Number:

ADA463494

Title:

Comparison of the Composition of the Tempel 1 Ejecta to the Dust in Comet C/Hale-Bopp 1995 O1 and YSO HD 100546

Descriptive Note:

Journal article

Corporate Author:

AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE

Report Date:

2007-01-01

Pagination or Media Count:

19.0

Abstract:

Spitzer Infrared Spectrograph observations of the Deep Impact experiment in July 2005 have created a new paradigm for understanding the infrared spectroscopy of primitive solar nebular material -- the ejecta spectrum is the most detailed ever observed in cometary material. Here, we take the composition model for the material excavated from Comet 9PTempel 1s interior and successfully apply it to Infrared Space Observatory spectra of material emitted from Comet C1995 O1 Hale- Bopp and the circumstellar material found around the young stellar object HD 100546. Comparison of our results with analyses of the cometary material returned by the Stardust spacecraft from Comet 81PWild 2, the in-situ Halley flyby measurements, and the Deep Impact data return provides a fundamental crosscheck for the spectral decomposition models presented here.

Subject Categories:

  • Astronomy
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE