Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.5003b&link_type=abstract
American Astronomical Society, AAS Meeting #211, #50.03; Bulletin of the American Astronomical Society, Vol. 39, p.811
Other
Scientific paper
The differences in the spectral energy distribution of young stars have led to the suggestion that they reflect an evolutionary sequence from optically thick disks to transitional disks (i.e. disks with optically thick outer disks and optically thin inner disks) to optically thin disks. The canonical interpretation of the morphology of transitional disks is that they reflect dynamical sculpting by an embedded planet. If so, then optically thick disks transition into optically thin disks on the timescale over which planet formation is thought to occur. As intriguing as this possibility is, there are other physical effects, namely grain growth and photo-evaporation, that can give rise to transitional disks with similar spectral energy distributions. In this poster we show how these effects can be differentiated by measuring the distribution of warm gas in the disk around Herbig Ae/Be stars using high-resolution spectra of ro-vibrational CO transitions.
Brittain Sean D.
Najita Joan
Troutman Matt
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