Seminar Announcement -OATS-DAUT SEMINAR - Wednesday, November 7th, at 12:00 noon (Villa Bazzoni)

[Gabriella Schiulaz]

I announce you this week's OAT-DAUT seminar:

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                        OATS-DAUT SEMINAR 
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Speaker: Bianca Poggianti (INAF/Osservatorio Astronomico di Padova) 

Title: Environmental dependence on the formation and evolution of galaxies 

Date: Wednesday, November 7th, 2007 
Time: 12:00 
Venue: Villa Bazzoni (Via Bazzoni, 2)

Abstract: 
Environment deeply affects galaxies from the very earliest stages of their formation throughout their whole history until the present day. The dependence of galaxy properties on environment can be seen in many ways, as a dependence on the local density around each galaxy, as a trend with the mass of the cluster and group where they reside, as a systematic change with position with respect to the center of a cluster and so on. I will present an overview of the observed trends and discuss the possible scenarios that lead to the observed trends.
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contact: Andrea Biviano (OATS) 




here follows a list of seminars scheduled in November:

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              OATS-DAUT SEMINAR 
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Speaker: Piero Ullio (SISSA, Trieste) 

Title: A multiwavelength approach to dark matter detection 

Date: Wednesday, November 14th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 

contact: Matteo Viel (OATS) 




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              OATS-DAUT SEMINAR 
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Speaker: Fabrizio Nicastro (INAF/Oss. Astr. Monteporzio) 

Title: The Missing Baryon Hunt 

Date: Wednesday, November 21th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 

Abstract: 
Despite recent progress in cosmology in assaying the composition of the energy-mass budget of the Universe, within the framework of our Standard Cosmological Model (SCM), very little is still known about nature and origin of 95 % of these constituents: dark Energy and dark Matter. These have the name 'dark' mainly to label our inability to directly detect and identify them. Less well known is that the situation is only conceptually better for the remaining 5 % of Omega: these are baryons, i.e. the constituents of the ordinary matter of which stars, planets, and ourselves are made. Today we can account for less than 50% of the baryons that the SCM predicts, implying that at least 50 % of the baryons are now missing. Finding and counting these baryons is therefore vital to our understanding of the Universe, and a necessary condition to validate the SCM. After a brief introduction of the problem, I will review all the different and independent pieces of evidence for these baryons, and will show that the majority of them is indeed still missing. In the second part of my talk I will then try to identify new promising lines of research, which will hopefully allow us in the near future to hone our techniques of hunt and to converge toward a possible solution of this important and still open astrophysical problem. 

contact: Stefano Borgani (DAUT) 


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                  OATS-DAUT SEMINAR 
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Speaker: Martin Wendt (Hamburg University, Germany) 
Title: Variability of the proton-to-electron mass ratio on cosmological scales - methods and shortcomings 

Date: Wednesday, November 28th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 

contact: Paolo Molaro (OATS) 


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For additional information on scheduled OAT seminars see:
http://adlibitum.oats.inaf.it/seminari/

Gabriella Schiulaz
segreteria OAT
Phone: 040-3199241
schiulaz at oats.inaf.it
segreteria at oats.inaf.it