Abstract
view Abstract Citations (23) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spatially Resolved Spectra of Silicate Dust around alpha Orionis Sloan, G. C. ; Grasdalen, G. L. ; Levan, Paul D. Abstract We have observed Alpha Orionis with a 10 micron long-slit spectrometer. By applying maximum entropy reconstruction techniques, we have spatially resolved the silicate emission from the circumstellar shell. The emissivity derived from our silicate spectrum compares favorably with published emissivity profiles describing circumstellar silicates. The lack of silicate emission in the direction of the central star suggests that the circumstellar dust may not be distributed in a spherical shell. Publication: The Astrophysical Journal Pub Date: February 1993 DOI: 10.1086/172282 Bibcode: 1993ApJ...404..328S Keywords: Astronomical Spectroscopy; Cosmic Dust; Silicon; Stellar Envelopes; Emission Spectra; Point Spread Functions; Stellar Evolution; Astrophysics; STARS: CIRCUMSTELLAR MATTER; INFRARED: STARS; STARS: INDIVIDUAL CONSTELLATION NAME: ALPHA ORIONIS; ISM: DUST; EXTINCTION full text sources ADS | data products SIMBAD (1)
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
