1. Interstellar Medium and Star Formation in the Andromeda Galaxy Andreas Schruba California Institute of Technology Adam Leroy, Karin Sandstrom, Fabian Walter, Alberto Bolatto, Nick Scoville, Julianne Dalcanton Phases of the ISM Heidelberg, July 29 – Aug 1, 2013

2. Regulation of Star Formation in Molecular Gas Ringberg, June 24-28, 2013

3. CO Map from IRAM 30m IRAM 30m: 85 pc x 2.5 km/s rms ~ 30 mK IRAM 30m: 85 pc x 2.5 km/s rms ~ 30 mK 500pc Brick 15

4. CO Map from CARMA CARMA: 175 hours 335 p mosaic 20 pc x 1 km/s rms ~ 250 mK CARMA: 175 hours 335 p mosaic 20 pc x 1 km/s rms ~ 250 mK 500pc Brick 15

5. Cloud Decomposition CPROPStoo Rosolowsky & Leroy 2006; Leroy et al. (in prep) locate “islands” break into “clouds” get moments & flux CPROPStoo Rosolowsky & Leroy 2006; Leroy et al. (in prep) locate “islands” break into “clouds” get moments & flux 500pc Brick 15

6. Cloud Decomposition 500pc Brick 9

7. Cloud Decomposition 500pc Brick 21

8. Cloud Properties I Aspect Ratio Radius Brick 15 Brick 9 Limit Velocity Dispersion Limit Peak Temperature Limit

9. Cloud Properties II Luminous Mass Limit Virial Mass Limit Virial Parameter Gravitational Stability Brick 15 Brick 9 ‘Larson’ Parameter Limit

10. Linewidth – Size Relation spirals dwarfs outer disk

11. Luminosity – Radius Relation spirals dwarfs outer disk

12. Larson’s “Parameter” spirals dwarfs outer disk fixed external pressure (Field et al. 2011) What controls nature of clouds (ie offsets)? … concordance of properties for neighboring clouds? What controls nature of clouds (ie offsets)? … concordance of properties for neighboring clouds?

13. Concordance of Cloud Nature? 500pc avg cloud properties (σ 2 /l) for neighboring clouds

14. Concordance of Cloud Nature? Distance H 2 Surface Density @ 200pc SFR Surface Density @ 200pc Cloud Mass

15. Cloud Motions

16. Concordance of Cloud Motions? DistanceH 2 Surface Density @ 200pc SFR Surface Density @ 200pc Cloud Mass

17. Cloud Dynamics

18. PHAT SF Histories Grad: Alexia Lewis (U Washington) Poster Brick 15Brick 16

19. PHAT Cluster Catalog Grad: Lori Beerman (U Washington)

20. PHAT Extinction Map Extinction A V = 1, 2, 3 mag Julianne Dalcanton (U Washington)

21. PHAT Extinction Map Extinction Figure Credit: Cheoljong Lee (UVA) Julianne Dalcanton (U Washington) Brick 15

22. PHAT Extinction Map Dust Mass Figure Credit: Cheoljong Lee (UVA) Bruce Draine (Princeton)

23. PHAT Extinction Map Atomic Gas Extinction Molecular Gas Figure Credit: Cheoljong Lee (UVA) Grad: Cheoljong Lee (U Virginia)

24. Regulation of Star Formation in Molecular Gas Ringberg, June 24-28, 2013 Final CARMA Survey pointings: 1500 area: 0.1 deg 2 ~ 15 kpc 2 beam: 20pc x 1 km/s clouds: 500-1000 completion: end 2013 Final CARMA Survey pointings: 1500 area: 0.1 deg 2 ~ 15 kpc 2 beam: 20pc x 1 km/s clouds: 500-1000 completion: end 2013