Franco Vazza



Home page for
turbulent and shocking thoughts


RESEARCH HIGHLIGHTS


TURBULENCE IN THE
INTRA CLUSTER MEDIUM

with Gadget  with ENZO



ENTROPY PRODUCTION AND
DISTRIBUTION IN GALAXY CLUSTERS
(+AGN FEEDBACK)
with ENZO

INJECTION AND FEEDBACK OF COSMIC RAYS
with sciENZO (new!)



MOVIES on Youtube Channel


IMAGES

TURBULENCE in the INTRA CLUSTER MEDIUM

Temperature velocity field in an ENZO simulation.
 
Temperature, Mach number & turbulence in ENZO AMR
 
the new Adaptive Mesh Refinment technique (ENZO)

The evolution of the kinetic energy spectrum (ENZO)

 
 
SHOCKS with ENZO
map of shocks 
Shocks captured by the algorithm
mach distribution
Mach number distribution      

Evolution of Mach number distribution in ENZO AMR


3-Dimensional rendering
(performed with VISIVO)



PUBLICATIONS

Master Degree Thesis (2004) (download 6.46 Mb postcript file)
Phd Thesis (2009)(download 20 Mb pdf file)


CURRICULUM VITAE


REFERRED JOURNAL ARTICLES


1.    Turbulent gas motions in galaxy cluster simulations: the role of smoothed particle hydrodynamics viscosity
    (Dolag, K.; Vazza, F.; Tormen, G.; Brunetti, G ; 2005MNRAS.364..753D)
2.    Turbulent velocity fields in smoothed particle hydrodymanics simulated galaxy clusters: scaling laws for the turbulent energy                  
    (Vazza, F.; Tormen, G.; Cassano, R.; Brunetti, G.; Dolag, K. -   2006MNRAS.369L..14V )
3.    Cosmological Shocks in Eulerian Simulations: Main Properties and Cosmic Rays Acceleration       
    (Vazza F., Brunetti G., Gheller C,  2009MSAIS..13..151V)
4.    Shocks Waves in Eulerian Cosmological Simulations: Main Properties and Cosmic Rays Acceleration 
    (Vazza, F.; Brunetti, G. & Gheller, C. -    2009MNRAS.395.1333V)
5.    Turbulent Motions and Shocks Waves in Galaxy Clusters simulated with AMR         
    (Vazza, F.; Brunetti, G.; Kritsuk, A.; Wagner, R.; Gheller, C.; . Norman, M2009A&A...504...33V HIGHLIGHT OF A&A Sept.09, vol.II)
6.    The Mixing and Transport Properties of the Simulated ICM: a Study with Tracers
    (Vazza, F. ; Gheller, C.; Brunetti G.   -  2010A&A...513A..32V )
7.    Massive and Refined: a sample of large galaxy clusters simulated at high resolution. I:Thermal gas and shock waves properties
   
 (Vazza, F.; Brunetti, G.; Gheller, C.; Brunino, R. - 
2010NewA...15..695V - New Astronomy)
8.     The entropy core in galaxy clusters: numerical and physical effects in cosmological grid simulations
   (Vazza, F. -  2011MNRAS.410..461V - MNRAS)
9. Massive and Refined. II. The statistical properties of turbulent motions in massive galaxy clusters with high spatial resolution
(Vazza, F.; Brunetti, G.; Gheller, C.; Brunino, R.; Brüggen, M  2011A&A...529A..17V  A&A)
10. The scatter in the radial profiles of X-ray luminous galaxy clusters as   diagnostic of the thermodynamical state of the ICM
(F.Vazza, M.Roncarelli, S.Ettori, K.Dolag  2011MNRAS.413.2305V MNRAS)
11. Merger and non-merger galaxy clusters in cosmological AMR simulations
 (F.Vazza,     proceeding of Nice conference, Nov 2010 2011MmSAI..82..609V)
12. A Comparison of Cosmological Codes: Properties of Thermal Gas and Shock Waves in Large Scale Structures
 (F.Vazza, K.Dolag, D.Ryu, G.Brunetti, C.Gheller, H.Kang, C.Pfrommer,
2011MNRAS.tmp.1718V
MNRAS, )
13. The injection and feedback of Cosmic Rays in large-scale structures
(Vazza, F.; Brueggen, M.; Gheller, C.; Brunetti, G., contribution to the Astronomical Society of the Pacific
Conference Series for the Cefalu' meeting "Advances in computational astrophysics: methods, tools and outcomes" 2011arXiv1109.3337V )
14. The gas distribution in galaxy cluster outer regions
(
Eckert, D.; Vazza, F.; Ettori, S.; Molendi, S.; Nagai, D.; Lau, E. T.; Roncarelli, M.; Rossetti, M.; Snowden, S. L.; Gastaldello, F
.,  2011arXiv1111.0020E submitted)
15. Why are central radio relics so rare?
(Vazza, F., Bruggen M.,Van Weeren R., Bonafede A., Dolag K., Brunetti G., 2011arXiv1111.1720V, MNRAS accepted
)
16. Modelling injection and feedback of Cosmic Rays in grid-based cosmological simulations: effects on cluster outskirts.

(Vazza F., Bruggen M., Gheller C., Brunetti G., MNRAS in press, 2012arxiv1201.3362)

17. Turbulence in the ICM from mergers, cool-core sloshing and jets: results from a new multi-scale filtering approach.
(Vazza F., E. Roediger, Bruggen M. submitted)



Press Releases and Public Media

News on Highlight of A&A (Sept II 2009) 
Urania News about "A galactic calculation" (in Italian)
Inaf News about Key Project 2009     (in Italian)
"Ammassi di Galassie, megalopoli della materia" in Le Stelle of March 2009 (in italian).
"L'Universo nei computer" in Le Stelle of Jan 2011 (in Italian)



HAPPY (AND HONOURED) OF COLLABORATING WITH:

M.Brűggen - JACOBS Univ. (Bremen - Germany)
Klaus Dolag - Munich Observatory (Munchen)

Gianfranco Brunetti - IRA - INAF (Bologna)
Claudio Gheller - CINECA (Bologna)
Riccardo Brunino - CINECA (Bologna)
Stefano Ettori - OaBo (Bologna)
Dongsu Ryu - Chungam National University (Daejon-S.COREA)
Dominque Eckert - ISDC Data Centre for Astrophysics

  Elke Roediger - JACOBS Univ.(Bremen-Germany)


PRIVATE


go to Radio Astronomy Institute (Bologna)
go to Jacobs University (Bremen)


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