Bologna 10-12 Oct. 2018
Promoting interactions around interacting galaxy clusters
A collaborative workshop for people actively involved or interested in a fast growing topic in galaxy cluster studies: the early interaction stage of merging objects, which can shed new light on the thermal and on the non thermal properties of the most diluted baryons in the Cosmic Web.  The workshop is fully supported by the ERC StG "Magcow". 
program and contributions
       Leaflet             #InteractingClusters2018
Highlights
       ​​​​​​


K. Dolag
P. Mazzotta
H. Bourdin

​G. Brunetti
N. Aghanim
S. De Grandi

A. Bonafede
S. Ettori

​A .Simionescu
V. Ghirardini
H. Akamatsu

C. Stuardi 

    
       ​​​​​​​​​​​​​​


A. Botteon
N. Locatelli
R. Van Weeren
D. Wittor
​A. De Graaff
​F. Degasperin

G. Bernardi  
J. Donnert 
P. Dominguez-Fernandez
D. Dallacasa

​M. Hoeft
​V. Biffi

    
    

Topics

Speakers (invitation only due to space restrictions)

       ​​​​​​​​​​
SOC :
       
F. Vazza
D. Eckert
M.Brüggen

LOC: 
F.Vazza and 
Fondazione Alma Mater
   
 
1. Which physical conditions should be expect for the gas and magnetic fields in these early interacting regions? What are the challenges to ​​​​​​​​ simulate/observe them? ​

2. Which new observational features should we expect (or might have already seen) in these regions? (strong non thermal pressure? inverse compton? unexpected magnetic fields? puzzling radio spectra? high metallicity?) 

3. Which sensitivities (or statistics) will be required  in X-ray/radio/SZ to improve our understanding of thees regions? Would stacking or deeper observations of single objects be best here?
Venue
The workshop will be held in  Palazzo Marchesini, Via Marsala 26  in the historic centre of Bologna. 
The preliminary program is​​​​ here

26 speakers,  30 minutes slot for each.
Suggested scheme for contributions:
a) "things we think we know",
b) "things we thought we knew but are actually  turning out to be puzzling";  
c) "things we hope we are going to undestand in the next ~10 years (how?)".
Please leave 5-10 minutes for questions and discussion. 
  1. 10 October - Day 1
    10 October - Day 1
    10 October 2018
    Speakers of the day: Ettori, Mazzotta, Planelles, Dolag, Rajpurohit, De Graaf, Ghirardini, De Gasperin, Akamatsu
  2. 11 October - Day 2
    11 October - Day 2
    11 October 2018
    Aghanim, Botteon, Simionescu, Bonafede, Wittor, Dallacasa, Locatelli, Bourdin, Stuardi, Dominguez-Fernandez, Biffi
  3. 12 October - Day 3
    12 October - Day 3
    12 October 2018
    Hoeft, Brunetti, Donnert, De Grandi, Bernardi
​Clusters undergoing mergers (but before they really merge...)
A number of observations and related theoretical works have recently highlighted a number of unexpected effects in the outer regions of galaxy clusters in a very early merging state. In such systems, before the major merger could really dissipate all its energy via shocks and turbulence. Such peripheral regions are very elusive, yet they might now become observable during the early stage of mergers (due to the enhancement of emission due to compression), especially thanks to the increased sensitivity of serveral new radio telescopes (e.g. LOFAR, MWA etc). The interpretation of these features, and the accurate prediction of the physics there also poses theoretical challenges to simulations. 
A minimal (growing) list of papers that look relevant to the aims of the workshop:
Code of Conduct (it goes without saying, but...)

  • All attendees and speakers at this workshop are required to agree with the following code of conduct.
  • We are committed to provide a harassment-free workshop experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion (or lack thereof), or technology choices.
  • We do not tolerate harassment of conference participants in any form. Offensive language and imagery is not appropriate for any conference venue, including talks,  discussion, Twitter and other online media. 
  • Organisers will enforce this code throughout the event.  Conference participants violating these rules may be sanctioned at the discretion of the conference organisers. 
  • We expect cooperation from all participants to help ensure a safe and pleasant environment for everybody.