Seminari


Seminars are organized jointly by the Trieste Astronomical Observatory (INAF/OATS) and the Astronomy Unit of the Physics Dept. of the Trieste University (UNI/TS). They usually take place on Wednesdays at 11:30, in the seminar room (Sala Ovale) of Villa Bazzoni in via Bazzoni 2, TS.

 
NEXT SEMINAR:
 

Wed, FEB 22, 2017 seminar:  CANCELLED !!!!


SPEAKER: Carmelita Carbone (INAF-OA Brera, Milano, IT)
TITLE:  The DEMN-Universe project


ABSTRACT: The "Dark Energy and Massive Neutrino Universe" project is a set of 14 large N-body simulations to study the evolution of large scale structures in the presence of massive neutrinos and dynamical dark-energy, parametrised according to Chevallier, Polarski & Linder. As shown in recent studies, the effect of the neutrino mass on the large scale structure of the Universe (growth rate and BAO) cannot be completely disentangled from that of a dynamical dark energy, undermining the interpretation of cosmological observations. Non-linear modelling of structure formation is therefore needed to fully exploit the current and future very large cosmological datasets. These simulations are the first in the literature to simultaneously deal with massive neutrinos and different dark-energy equations of state. The simulations are characterised by a box side L=2 Gpc/h, a particle number of N=2x(2048)^3 (the factor of 2 stands for CDM and neutrino particles), and a mass resolution for CDM particles of about 8x10^10 M_sun/h. Given their large volume and good mass resolution, the DEMN-Universe simulations will be used to generate mock galaxy/void catalogs and CMB/weak-lensing/SZ/ISW/Rees-Sciama maps. This will help to predict with how much accuracy the combination of future cosmological probes will be able to constrain the neutrino mass in the presence of an evolving dark energy, and viceversa. I will present recent results from the DEMN-Universe suite, together with possible applications to Euclid.

contact: Pierluigi Monaco

 

 
 
 
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ORGANIZATION:

Seminar organizers:
Elena Mason: This email address is being protected from spambots. You need JavaScript enabled to view it.
Valentina D'Odorico: This email address is being protected from spambots. You need JavaScript enabled to view it.
Pierluigi Monaco: This email address is being protected from spambots. You need JavaScript enabled to view it.

Seminar logistic:
Gabriella Schiulaz and Simonetta Fabrizio: This email address is being protected from spambots. You need JavaScript enabled to view it.

Should you wish to give a talk at OATS, please feel free to contact the organizers.
Should you be one of our next speakers and need any travel and/or logistic information, please contact our Seminar logistic.
Please find here the speaker vademecum (pdf), in preparation for your coming visit at OATS.