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The relation between the galaxy stellar mass distribution and the mass

The relation between the galaxy stellar mass distribution and the mass of its hosting halo. BENEDETTA VULCANI KAVLI IPMU. In collaboration with Bianca Poggianti Gabriella De Lucia Alan Dressler Kevin Bundy. What Regulates Galaxy Evolution? - 2013, April 22 th -26 th.

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The relation between the galaxy stellar mass distribution and the mass

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  1. The relation between the galaxy stellar mass distribution and the mass of its hosting halo BENEDETTA VULCANI KAVLI IPMU In collaboration with Bianca Poggianti Gabriella De Lucia Alan Dressler Kevin Bundy What Regulates Galaxy Evolution? - 2013, April 22th-26th

  2. THE ENVIRONMENT The properties of galaxies correlate with the environment: Morphologydensity relation (Dressler 1980, Dressler+ 1997) Denserenvironmentshost more massive, reddergalaxies with lower star-formationrates (Kauffmann+ 2004) Galaxiesin differentenvironments evolve with differenttimescales ..But various galaxy properties are strongly correlated even in a fixed environment.. What Regulates Galaxy Evolution? - 2013, April 22th-26th

  3. How are the mass and environment related? What Regulates Galaxy Evolution? - 2013, April 22th-26th

  4. The field mass function (e.g. Fontana+ 2006, Bundy+ 2006, Franceschini+ 2006, Borch+ 2006, Vergani+ 2008, Drory+09, Pozzetti+ 2011) For high mass galaxies, the evolution of the total mass function from z = 1 to z = 0 is relatively modest Low mass galaxies evolve more than high mass galaxies Ilbert+ 2010 What Regulates Galaxy Evolution? - 2013, April 22th-26th

  5. Pannella+ 2006 Vergani+ 2008 Several studies have analyzed separately galaxies of different types (colors, star formation activity, structural parameters, morphologies) Borch+ 2006 What Regulates Galaxy Evolution? - 2013, April 22th-26th

  6. AND IN CLUSTERS? WIdefieldNearbyGalaxy-cluster Survey (WINGS - Fasano+ 06): X raysselected cluster (σ>500 km/s) at0.04<z<0.07 U,B,V and J,K photometry Spectroscopy ESO Distant Cluster Survey (EDisCS - White+ 2005): Opticallyselected clusters (σ>400 km/s) and groups (150<σ<400 km/s) at 0.4<z<0.8 Deepopticalphotometry in B,V,I or V,R,I Deepspectroscopy Wide-fieldimaging Stellar masses from the relation between LB and B-V color (Bell & De Jong 2001) What Regulates Galaxy Evolution? - 2013, April 22th-26th

  7. The cluster mass function Evolution driven by the mass growth of star forming galaxies in both clusters and in the cluster surrounding areas. + MORPHOLOGICAL TRANSFORMATION z=0.07 z=0.6 Vulcani et al. (2011) What Regulates Galaxy Evolution? - 2013, April 22th-26th

  8. The shape of the MF does not depend on global environment The MF in different environments IMACS Cluster Building Survey (ICBS - Oemler+ 2013): Cluster selected using the Red Sequence Cluster Survey method (Gladders and Yee 2000) at 0.25<z<0.5 IMACS wide field Broad band photometry in B,V,R,I or g,r,i,z Spectroscopic data of clusters, groups and field clusters field groups clusters Vulcani et al. (2013) What Regulates Galaxy Evolution? - 2013, April 22th-26th

  9. The red/blue MF Red and blue MF are different, but no differences detected in MF in different environments, for red and blue galaxies separately What Regulates Galaxy Evolution? - 2013, April 22th-26th Vulcani et al. (2013)

  10. The MF in different environments Low-z Padova Millennium Galaxy Group Catalog (PM2GC – Calvi, Poggianti, BV 2011): Spectroscopic data of ~38deg2 at 0.04<z<0.1 from the Millennium Galaxy Catalog (Lieske+2003) Deep and wide B-imaging Rich sample of groups, binary systems and isolated galaxies Calvi, Poggianti, BV, Fasano (2013) What Regulates Galaxy Evolution? - 2013, April 22th-26th

  11. The evolution INDEPENDENT OF ENVIRONMENT! Vulcani et al. (2013) What Regulates Galaxy Evolution? - 2013, April 22th-26th

  12. Help from the simulations BV, De Lucia, Poggianti in prep. What Regulates Galaxy Evolution? - 2013, April 22th-26th

  13. The predicted evolution BV, De Lucia, Poggianti in prep. What Regulates Galaxy Evolution? - 2013, April 22th-26th

  14. The dependence on halo mass BV, De Lucia, Poggianti in prep. What Regulates Galaxy Evolution? - 2013, April 22th-26th

  15. MY QUESTIONS Whydoesn’t the global envirnomentaffectgalaxymasses? Whatisthe role of the environmentatlowermasses? Why do simulationsoverpredict the number of low mass galaxies? What Regulates Galaxy Evolution? - 2013, April 22th-26th

  16. SUMMARY Bothat high and low -z, the total mass functiondoesnotdepend on environment. At high-z, red and blue MF are different, but no differences are detected in MF in differentenvironments, for red and blue galaxiesseparately. The evolution of the mass functionisverysimilar in all the environments. Semianalyticmodels can reproduceonly the observedfield mass functionatlow-z. As a consequence, they do notreproduceneither the observedevolutionnor the independence of the mass function on the environment. What Regulates Galaxy Evolution? - 2013, April 22th-26th

  17. What Regulates Galaxy Evolution? - 2013, April 22th-26th

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