Dust Emission from Herbig Ae/Be Stars - Evidence for Disks and envelopes
- UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
- Anatoly S. Miroshnichenko, Professor (Creator)
- Institution
- The University of North Carolina at Greensboro (UNCG )
- Web Site: http://library.uncg.edu/
Abstract: IR and mm-wave emission from Herbig Ae/Be stars has produced conflicting conclusions regarding the dust geometry in these objects. We show that the compact dimensions of the mm-wave emitting regions are a decisive indication for disks. But a disk cannot explain the spectral energy
distribution (SED) unless it is embedded in an extended envelope that (1) dominates the IR emission and (2) provides additional disk heating on top of the direct stellar radiation. Detailed radiative transfer calculations based on the simplest model for envelope-embedded disks successfully fit the data from UV to mm wavelengths and show that the disks have central holes. This model also resolves naturally some puzzling results of IR imaging.
Dust Emission from Herbig Ae/Be Stars - Evidence for Disks and envelopes
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Created on 1/1/1999
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Additional Information
- Publication
- arXiv:astro-ph/9905361v1 27 May 1999
- Language: English
- Date: 1999
- Keywords
- Accretion, accretion disks, Circumstellar matter, Dust, extinction, Stars: premainsequence