Protostars and Planets VI, Heidelberg, July 15-20, 2013
Poster 2B015
Evolution of Herbig Ae/Be stars seen by CO fundamental band spectroscopy
Goto, Miwa (USM)
Abstract:
The disk atmosphere is the basic element of any disk models we
use to understand a protoplanetary disk today. Disk atmosphere
is also a sensitive indicator of the disk evolution, as a
protoplanetary disk transforms itself from a flared to a flat
disk. The direct observations of disk atmosphere is, however,
challenging, because the emission from the disk is usually
dominated by the warm gas near the disk inner-rim. Here we
report spatially resolved CO fundamental band spectroscopy by
CRIRES/VLT at 4.7 μm. We discuss the measured inner radii of the
gas disks and the power-law indices of the emission from the
disk atmosphere of the sample of Herbig Ae/Be stars, and
possible evolutionary path how to put them in a context.
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