1. Evolution of Gas in Circumstellar Disks
Infrared Spectroscopy of Gas Species
Kristna Barkume Ay/Ge 132

2. From Molecular Clouds to Planet-Forming Disks A Spitzer Legacy Program
Spitzer Instruments
IRAC: Imager 4 colors between mm
Images of the CO content
IRS: mm spectrometer
R~600
H2, H20, CO2, solid state silicates
MIPS: mm multi-band photometer
Other Instruments
NIRSPEC (Keck II) : mm
R~25,0000
CO (u = 1-0)
OVRO

3. Boogert, Hogerheijde, and Blake 2002
4.7 mm CO from L1489 IRS
Boogert, Hogerheijde, and Blake 2002
Key: CO u C18O

4. Boogert, Hogerheijde, and Blake 2002
4.7 mm CO from L1489 IRS
Boogert, Hogerheijde, and Blake 2002

5. AB Aurigae Herbig AeBe Star ~2-4 Myr Strong Pfb emission
Brittain, et al. 2003
AB Aurigae
Herbig AeBe Star
~2-4 Myr
Strong Pfb emission
IR Fluorescence

6. HD 141569 Herbig AeBe Star 5 Myr or greater No Pfb emission UV Pumped
Brittain, et al. 2003 HD
Herbig AeBe Star
5 Myr or greater
No Pfb emission
UV Pumped