1. Dissecting Disk Galaxies in COSMOS
Thomas Bschorr
with Marcella Carollo (ETH Zürich), Emeric Le Floc‘h, Hervé Aussel
+ many other COSMOS collaborators

2. Data IACS≤24, cleaned ACS-based catalog (Leauthaud et al. 2007)
Ground based photometry (U to K-band, Capak et al )
GALEX (NUV, FUV, Zamojski et al. 2007)
Spitzer MIPS: 24μm (≥80μJy, courtesy of Le Floc'h, Aussel, et al. 2009)

3. 4694 Disks at 0.5≤z<1.0, I≤24 (but …) 1827 with
Measurements
ZEBRA+ (Oesch et al. 2010)
Masses and photo-z
(consistent results with O. Ilbert photo-z and masses)
ZEST+
Morphology
Substructure
Bulge
Dominated
Intermediate
Bulgeless Disk
4694 Disks at 0.5≤z<1.0, I≤24 (but …)
1827 with
Grand Design Spiral
Flocculent Spiral
Smooth Disk
Clumpy Disk
Nothing!

4. Inclination Correction
Suffering from Inclination Effects even at 24μm
factor ≈2
factor ≈8
factor ≈3

5. Substructure Properties – Mass 0.5≤z<0.75

6. Substructure Properties – Mass 0.75≤z<1.0

7. Substructure – (un)obscured SFR 0.5≤z<0.75

8. Substructure – (un)obscured SFR 0.75≤z<1.0

9. Surface-brightness Incompleteness

10. Mass-Radius Relation split in SSFR

11. Summary Substructure to study dynamical state of disk galaxies
L24 also suffers from inclination effects and therefore the total SFR
Grand Design Spirals with low SSFR larger and more massive than at high SSFR
Grand Design Spiral Structure only in large and massive galaxies
Smooth Disks smaller but span same mass range
Smooth Disks therefore higher surface-mass density and more compact than Grand Design Spiral structure
LUV/L24 as indicator of obscured/unobscured SFR
Grand Design Spiral structure more unobscured star-formation
Smooth Disks obscured star-formation