SEMINAR ANNOUNCEMENT - OATS-DAUT SEMINAR - Wedn. January 31st, at 12:00 noon - Villa Bazzoni

[Gabriella Schiulaz]

I announce you next seminar at Villa Bazzoni:

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                      OATS-DAUT SEMINAR 
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Speaker: Antonaldo Diaferio (Univ. di Torino) 

Title: Mass and Light in the Outskirts of Galaxy Clusters 


Date: Wednesday, January 31st, 2007 
Time: 12:00 noon 
Venue: Villa Bazzoni 


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Abstract: 
Dark matter dominates the dynamics of cosmic structures. Quantifying the relative distribution of dark and luminous matter is a major challenge of modern cosmology. I will present the caustic technique, a method which uses the position and redshift of galaxies alone to measure the mass in the outer regions of clusters; here traditional methods, based on the assumption of dynamical equilibrium, do not hold. When applied to the CAIRNS survey and 72 more clusters extracted from the Sloan Digital Sky Survey (the CIRS survey), the caustic technique provides the largest sample of clusters whose mass profiles have been measured out to three times the virial radius. The universe matter density and the normalization of the power spectrum provided by the mass function of these clusters agree with the WMAP3 estimates. When combined with photometric and spectroscopic information, these cluster mass profiles can also provide relevant constraints on the models of galaxy formation in the transition region between the high-density cluster cores and the low-density field environment. 
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Here follows a list of  Future Seminars (from February to June)


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OATS-DAUT SEMINAR 
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Speaker: Massimo Della Valle (INAF, Arcetri) 

Title: GRB 060614: when a star dies in the shadow 

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



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JOINT DAUT-ICTP-OATS-SISSA COLLOQUIUM 
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Speaker: Andy Fabian (Institute of Astronomy, Cambridge - UK) 

Title: Observations of AGNs 

Date: Thursday, February 15th, 2007 (PLEASE note day, time and venue)
Time: 16:00 
Venue: SISSA, Room D 



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OATS-DAUT SEMINAR 
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Speaker: Roberto Battiston (INFN, Perugia) 

Title: Cosmic-ray Astrophysics with AMS-02 

Date: Wednesday, February 21st, 2007 
Time: 12:00 noon 
Venue: Villa Bazzoni 

Abstract: 
Precise knowledge of the hadronic component of cosmic rays is needed to describe the cosmic ray production, acceleration and propagation mechanisms in our galaxy. Present measurements suffer from limitations coming from short exposure time, intrinsic instrumental limitations and restricted energy range. The AMS-02 experiment is a large acceptance magnetic spectrometer to perform high statistics studies of cosmic rays in space. The detector will operate on the International Space Station for more than 3 years. AMS-02 will precisely measure the cosmic ray fluxes of individual elements up to Z~25 in the rigidity range from ~1GV to ~1TV. AMS-02 will allow to test propagation models through the precise measurements of secondary-to-primary ratios as D/p, 3He/4He in the energy range few hundreds MeV to tens of GeV, and B/C, sub-Fe/Fe up to ~1TV. In particular the original measurements of 10Be/9Be will be performed with high accuracy allowing the understanding of the age of the cosmic-ray confinement and constraint models of the size of the galactic halo. Among the goal of the precision measurement of Cosmic Rays flux and composition by AMS-02 is the measurement for rare components like positrons, and antiprotons, or component never observed before like antideuterons and antinuclei. These measurements could allow to understand cosmic misteries like the origin of dark matter or the existence of nuclear antimatter. 



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OATS-DAUT SEMINAR 
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Speaker: Giuseppe Bono (INAF-Osservatorio Astronomico di Roma) 

Title: To Be Announced 

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


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OATS-DAUT SEMINAR 
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Speaker: Yasunori Fujii (Nihon Fukushi Univ., Japan) 

Title: To Be Announced 

Date: Monday, March 5th, 2007 (PLEASE note day and time)
Time: 16:00 
Venue: Villa Bazzoni 



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OATS-DAUT SEMINAR 
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Speaker: Enzo Branchini (University of Roma Tre) 

Title: Looking for missing barions with x-ray glasses 

Date: Wednesday, March 7th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 



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JOINT DAUT-ICTP-OATS-SISSA COLLOQUIUM 
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Speaker: Michele Maggiore (Geneva University) 

Title: Gravitational Waves: Theory and Observations 

Date: Thursday, March 15th, 2007    (PLEASE note day, time and venue)
Time: 16:00 
Venue: ICTP Main Building, Seminar Room, First Floor 



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OATS-DAUT SEMINAR 
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Speaker: Alessandra Rotundi (Università di Napoli "Parthenope")

Title: Stardust: the first laboratory analyses of cometary dust 

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


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OATS-DAUT SEMINAR 
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Speaker: Patricia Sánchez-Blázquez (Univ. of Central Lancashire, UK) 

Title: The star formation history of early-type galaxies 

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



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OATS-DAUT SEMINAR 
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Speaker: Francesco Marzari (Università di Padova) 

Title: Dynamics of Extrasolar Planets 

Date: Wednesday, April 4th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 



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OATS-DAUT SEMINAR 
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Speaker: Pierluigi Selvelli (INAF-Osservatorio Astronomico di Trieste) 

Title: The OIII and NIII Bowen fluorescence lines in the symbiotic nova RR Tel 

Date: Wednesday, April 11st, 2007 
Time: 12:00 noon 
Venue: Villa Bazzoni 



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JOINT DAUT-ICTP-OATS-SISSA COLLOQUIUM 
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Speaker: Piero Madau (Univ. of California Observatories) 

Title: Cold Dark Matter Substructure in Galaxy Halos 

Date: Thursday, April 19th, 2007 (PLEASE note day and time)
Time: 16:00 
Venue: Villa Bazzoni 



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OATS-DAUT SEMINAR 
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Speaker: Ennio Poretti (INAF / Oss. Astron. di Brera) 

Title: Corot: Asteroseismology and Extrasolar Planets from Space 

Date: Tuesday, May 8th, 2007 
Time: 12:00 
Venue: Villa Bazzoni 



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JOINT DAUT-ICTP-OATS-SISSA COLLOQUIUM 
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Speaker: Max Pettini (Institute of Astronomy, Cambridge, UK) 

Title: The First Stars: Clues from Damped Lyman alpha Systems and Lyman Break Galaxies 

Date: Thursday, May 17th, 2007 (PLEASE note day and time)
Time: 16:00 
Venue: Villa Bazzoni 



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JOINT DAUT-ICTP-OATS-SISSA COLLOQUIUM 
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Speaker: Albert Stebbins (Fermilab, Chicago) 

Title: Cosmological Large-Scale Structure 

Date: Thursday, June 21th, 2007 (PLEASE note day, time and venue)
Time: 16:00 
Venue: SISSA, Room D 

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OAT seminars are also available on the page:
http://adlibitum.oats.inaf.it/seminari/index.html

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