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MW87

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Embedded Regions of Massive Star Formation. New Globular Clusters ... SIRTF observations can diagnose structure & composition of flared disks around solar-type stars ... – PowerPoint PPT presentation

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Title: MW87


1
Overview Galactic Sciencein the Legacy Program
CORES TO DISKS

?
?
FEPS
2
Sky Coverage and PotentialDiscoveries of GLIMPSE
Survey
(Data from 2-MASS)
Supernova Remnants Interacting with the ISM
New Globular Clusters
Embedded Regions of Massive Star Formation
3
Protostellar Disks to Mature Planetary Systems (I)
(FEPS Team)
4
Protostellar Disks to Mature Planetary Systems
(II)
(Cores to Disks Team)
Few My
10 My
100 My
5 Gy
5
Molecular Clouds Cradles of Starbirth
(Cores to Disks Team)
6
Disk Survey of Young ClusterNGC2516 MIPS Scan
Paths
(E. Young, MIPS)
7
Projected SIRTF results for young cluster NGC
2516
(K.Stapelfeldt, JPL)
8
What are the Conditions Under which Planets Form?
(Chiang and Goldreich)
Predicted Spectrum (star plus disk)
HST Image
Total
33
Stellar
32
log Ln (erg s-1)
31
Surface
30
29
Interior
1
10
100
1000
Star
Wavelength (mm)
SIRTF observations can diagnose structure
composition of flared disks around solar-type
stars
Model disk with flared surface
9
Debris Disks Models Images Ozernoy et al
JCMT Image of Vega
10
Spectra of Dust Disk in HD100546 of Comet
Hale-Bopp
(Malfait et al 1998)
Crystalline forsterite
Amorphous Olivine
Amorphous Olivine
PAH
PAH
PAH
PAH
Comparison of the spectrum of the young star
HD100546 and that of comet Hale-Bopp in the
mid-IR. The similarity in features indicates a
possible bombardment of comets in the early
stages of the disk forming around HD100546.
11
Predicted Spectrum of Brown Dwarf GL229B
(Spectrum from Marley et al)
The IRS Short-Lo Sensitivity (5s, 500s) is 0.5
mJy
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