Published May 1991
| Version v1
Journal article
Detection of silicates in the Beta Pictoris disk
Creators
- 1. New York, State University, Stony Brook (USA)
- 2. NASA, Marshall Space Flight Center, Huntsville, AL (USA)
Description
A broad 10-micron emission feature has been detected within 3 arcsec of the star Beta Pic which is known to have a circumstellar, possibly protoplanetary, disk. The observations were made using four narrow-band filters in the MSFC bolometer array at the IRTF. The emission feature closely resembles silicate features observed in Comets Halley and Kohoutek and in a variety of Galactic sources. The feature is strong, with the total flux density emitted by dust at 10.3 microns being at least twice the estimated continuum at that wavelength, and must be emitted by particles with characteristic radii less than 10 microns. 10 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 372
- Series
- Astrophys. J.
- Journal Page Range
- L29-L31
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22078691
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ACCRETION DISKS; CHEMICAL COMPOSITION; COSMIC DUST; EMISSION SPECTRA; FLUX DENSITY; HALLEY COMET; INFRARED SPECTRA; SILICATES; SPECTROSCOPY; STARS
- Descriptors DEC
- COMETS; DUSTS; OXYGEN COMPOUNDS; SILICON COMPOUNDS; SPECTRA
Optional Information
- Notes
- L29-L31. NASA-supported research.