- Author
- Year
- 2004
- Title
- Correlation between grain growth and disk geometry in Herbig Ae/Be systems
- Journal
- Astronomy & Astrophysics
- Volume
- 422
- Pages (from-to)
- 621-626
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Anton Pannekoek Institute for Astronomy (API)
- Abstract
-
We have calculated the (sub-)mm spectral indices of 26 Herbig Ae/Be stars, for which we can determine the infrared spectral energy distribution (SED). We find a clear correlation between the strength of the ratio of the near- to mid-infrared excess of these sources, and the slope of the (sub-)mm energy distribution. Based on earlier multi-dimensional modeling of disks around Herbig Ae stars, we interpret this as a correlation between the geometry of the disk (flared or self-shadowed) and the size of the grains: self-shadowed disks have, on average, larger grains than their flared counterparts. These data suggest that the geometry of a young stellar disk evolves from flared to self-shadowed.
- URL
- go to publisher's site
- Link
- Link
- Language
- Undefined/Unknown
- Persistent Identifier
- https://hdl.handle.net/11245/1.228309
- Downloads
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