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Gas in Transitional Disks
Sean BrittainClemson University, Clemson, SC, USA
Joan NajitaNational Optical Astronomy Observatory, Tucson, AZ,
USA
5th Planet Formation Workshop
Interpretation of the SED
QuickTime™ and aTIFF (Uncompressed) decompressor
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Malfait et al. 1998
Gas in Transitional Disks
0.1 AU~2000 K
10 AU~500 K
100 AU~50 K
H2O ro-vib
CO v=2
CO v=1
H2 UV, NIR, MIR
OH v=1
E”J=2~500K, J1
Freezes at ~170K
CO v=0
FIR [OI], [CI]
Malfait et. al. A&A 331: 221 (1998)
NIR
NIRA0 star“Transitional Disk”Age ~ 6-8 Myr
.
Regions of interest
.
A0 star“Classic Disk”Age ~ 4 Myr
Clampin, et al. 2003, AJ 126, 385
C. Grady, et al. 2003, ApJ, 683, 151
F/
vFv
F/
vFv
Wavelength (m)
Wavelength (m)