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:   
  

 

Thu JUN 21, 2018 
SPEAKER: Iacopo Bartalucci (CEA-Saclay, Paris, FR)
TITLE: XMM-Newton and Chandra combined analysis of the most massive galaxy clusters at z~1


ABSTRACT:  Massive galaxy clusters represent an ideal laboratory to test our models in a mass regime where structure formation is driven mainly by gravity. Furthermore, the properties of high redshift clusters can be compared with local samples to investigate the evolution and assembly of large structures across cosmic times. Within this context, we present a detailed study of the spatially resolved thermodynamic and hydrostatic mass profiles of the five most massive clusters detected at z~1 via the Sunyaev-Zel'dovich effect, using a method which optimally exploits information from XMM-Newton and Chandra observations. The combination of Chandra’s excellent spatial resolution and XMM-Newton’s photon collecting power allows us to spatially resolve the profiles from the core to the outskirts, for the first time in such objects. Evolution properties are investigated by comparison with the REXCESS local galaxy cluster sample. Finally, we discuss the current limitations of this method in the context of joint analysis of future Chandra and XMM large programs and, more generally, of multi-wavelength efforts to study high redshift objects.

contact:  Barbara Sartoris

 

 

 

 
 
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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.

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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's Vademecum, in preparation for your coming visit at OATS.