Cometary Dust in the Debris Disks of HD 31648 and HD 163296: Two ``Baby'' beta Pics
arXiv:astro-ph/9807229 · doi:10.1086/306586
Abstract
The debris disks surrounding the pre-main sequence stars HD 31648 and HD 163296 were observed spectroscopically between 3 and 14 microns. Both possess a silicate emission feature at 10 microns which resembles that of the star beta Pictoris and those observed in solar system comets. The structure of the band is consistent with a mixture of olivine and pyroxene material, plus an underlying continuum of unspecified origin. The similarity in both size and structure of the silicate band suggests that the material in these systems had a processing history similar to that in our own solar system prior to the time that the grains were incorporated into comets.
17 pages, AASTeX, 5 eps figures, accepted for publication in Ap.J
Cited by in corpus (12)
- How Observations of Circumstellar Disk Asymmetries Can Reveal Hidden Planets: Pericenter Glow and its Application to the HR 4796 Disk
- Spectral Energy Distributions of T Tauri and Herbig Ae Disks: Grain Mineralogy, Parameter Dependences, and Comparison with ISO LWS Observations
- C2D Spitzer-IRS spectra of disks around T Tauri stars: I. Silicate emission and grain growth
- HST/NICMOS2 coronagraphic observations of the circumstellar environment of three old PMS stars: HD 100546, SAO 206462 and MWC 480
- Dust in an extremely metal-poor galaxy: mid-infrared observations of SBS 0335-052
- 8--13 um spectroscopy of YSOs: Evolution of the silicate feature
- Detection of crystalline silicates around the T Tauri star Hen 3-600A
- 3 - 14 Micron Spectroscopy of Comets C/2002 O4 (Honig), C/2002 V1 (NEAT), C/2002 X5 (Kudo-Fujikawa), C/2002 Y1 (Juels-Holvorcem), 69P/Taylor, and the Relationships among Grain Temperature, Silicate Band Strength and Structure among Comet Families
- Crystalline Silicate Feature of the Vega-like star HD145263
- Determining mass limits around HD163296 through SPHERE direct imaging data
- Silicate Emission in the TW Hydrae Association
- A Survey of 10-Micron Silicate Emission from Dust around Young Sun-Like Stars