The mineralogy of proto-planetary disks surrounding Herbig Ae/Be stars

Details The mineralogy of proto-planetary disks surrounding Herbig Ae/Be stars The mineralogy of proto-planetary disks surrounding Herbig Ae/Be stars

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3470b&link_type=abstract

Spitzer Proposal ID #3470

Computer Science

Scientific paper

We propose to use the IRS on board of the Spitzer Space Telescope to study the mineralogy of dust in the planet-forming disks that surround intermediate-mass pre-main-sequence stars. The mid-infrared spectral region has an amazing richness of solid state resonances of abundant materials, that are sensitive to grain growth and grain processing. Most importantly, such observations will probe the presence of minerals that are also found to be common in the solar system. Therefore, the proposed observations will provide a unique opportunity to compare on-going planet formation with the historic records of the formation of the solar system as found in meteorites, interplanetary dust particles and comets. Existing data sets show a tremendous variation in spectral shape and dust composition, but sample size and quality of the data preclude establishing clear trends. A large sample of stars is required to study the way interstellar dust grains are processed to form new planetary systems. The proposed observations, in combination with the existing GTO and Legacy programs will form a complete census of known nearby, isolated Herbig~Ae stars, allowing for a systematic study into the evolution of planet-forming disks.

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