Future Seminars

Future Seminars

 

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JOINT ICTP-OATS-SISSA-UNI/TS COLLOQUIUM
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Speaker: Luca Amendola (University of Heidelberg, D)

Title: Future prospects for dark energy cosmologies

Date: Thursday, February 17th, 2011
Time: 15:00
Venue: SISSA

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contact: Carlo Baccigalupi (SISSA)



 

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OATS-UNI/TS SEMINAR
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Speaker: Mariangela Bernardi (Dept. Physics & Astronomy, Univ. of Pennsylvania)

Title: Massive galaxies in massive datasets
Date: Wednesday, February 23rd, 2011
Time: 15:00
Venue: Villa Bazzoni

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Abstract: Understanding why massive early-type galaxies are red and dead has proved to be difficult. This has been the source of tension with hierarchical formation models, such as the Cold Dark Matter model, in which massive objects are formed from mergers of smaller ones which existed at early times. The problem is to arrange for star formation to occur at higher redshift than the actual assembly of the stars into a single massive galaxy. The most recent galaxy formation models arrange for this to happen by a combination of two processes: dry mergers and AGN feedback (or other mechanisms of quenching star formation).

I will discuss a number of results on massive galaxies in the SDSS which suggest that two mass scales, M* = 3 10^10 and 2 10^11 Msun, are special. The smaller scale could mark the transition between wet and dry mergers, or it could be related to the interplay between SNe and AGN feedback; the larger scale could mark the transition above which major dry mergers dominate the assembly histories of early-type galaxies. I will also discuss how the Brightest Cluster Galaxies and other extreme objects in the SDSS and other recent astrophysical datasets fit into this picture.


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contact: Valentina D'Odorico (INAF - OAT)

 


 

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OATS-UNI/TS SEMINAR
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Speaker: Michaela Hirschmann (Munich Univ.)

Title: Galaxy Formation in SAMs and Simulations
Date: Wednesday, March 2nd, 2011
Time: 15:00
Venue: Villa Bazzoni

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Abstract: I present a detailed comparison between direct cosmological zoom-simulations and results from semi-analytic models based on the same dark matter merger trees. The global limitations of these two modeling approaches are assessed focusing on the baryon content of the halos at different redshifts. At high redshifts (z > 2), the star formation efficiency in simulations exceeds significantly the one in Semi-Analytical Models (SAMs). Due to an insufficient treatment of the physics of cold flows SAMs without metal cooling significantly over-predict the hot gas content at high redshifts when compared to simulations. All SAMs predict that in-situ star formation dominates the mass assembly of galaxies at all masses and at all redshifts - in contrast to the simulations - thereby challenging the currently discussed size evolution models.
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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, March 9th, 2011
Time: 15:00
Venue: Villa Bazzoni

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JOINT ICTP-OATS-SISSA-UNI/TS COLLOQUIUM
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Speaker: Joe Silk (Oxford Astrophysics, UK)

Title: To be announced later

Date: Thursday, March 17th, 2011
Time: 15:00
Venue: SISSA

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contact: Carlo Baccigalupi (SISSA)

 

 


 

 

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, March 23rd, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, March 30th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, April 6th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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Speaker: Edward Baron (Dep. of Physics and Astronomy, Univ. of Oklahoma)

Title: TBD
Date: Wednesday, April 27th, 2011
Time: 15:00
Venue: Villa Bazzoni

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contact: Massimo Turatto (INAF-OAT)

 

 


 

 

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, May 4th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, May 11th, 2011
Time: 15:00
Venue: Villa Bazzoni

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JOINT ICTP-OATS-SISSA-UNI/TS COLLOQUIUM
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AVAILABLE for JC


Date: Thursday, May 20th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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Speaker: Andrea Maccio` (MPIA, Heidelberg, Germania)

Title: TBD
Date: Wednesday, May 25th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, June 1st, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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Speaker: Simone Weinmann (Leiden Univ.)

Title: TBD
Date: Wednesday, June 8th, 2011
Time: 15:00
Venue: Villa Bazzoni

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JOINT ICTP-OATS-SISSA-UNI/TS COLLOQUIUM
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AVAILABLE for JC


Date: Thursday, June 16th, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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AVAILABLE


Date: Wednesday, June 22nd, 2011
Time: 15:00
Venue: Villa Bazzoni

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OATS-UNI/TS SEMINAR
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Speaker: Jim Bartlett (Univ. Paris 7, Paris, France)

Title: TBD
Date: Wednesday, June 29th, 2011
Time: 15:00
Venue: Villa Bazzoni

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