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tests:collision [2015/09/01 10:30]
v.henault-brunet
tests:collision [2016/10/11 07:43] (current)
v.henault-brunet
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 **Working group coordinators:​** Mark Gieles, Vincent Henault-Brunet (m.gieles, v.henault-brunet [at] surrey.ac.uk) **Working group coordinators:​** Mark Gieles, Vincent Henault-Brunet (m.gieles, v.henault-brunet [at] surrey.ac.uk)
 +
 +[[:​tests:​collision:​GC4| Gaia Challenge 4 (Stockholm) Collisional systems discussion and results]].
 +
  
 You will find here some challenges based on data from collisional N-body models. These mock data are designed to mimic collisional systems like star/​globular clusters. You will find here some challenges based on data from collisional N-body models. These mock data are designed to mimic collisional systems like star/​globular clusters.
  
-A summary of Gaia Challenge ​from the Collisional systems working group can be found [[:​tests:​collision:​GC2_archive|here]]. Preliminary results from the first Gaia Challenge workshop in Surrey are [[:​tests:​collision:​GC1_archive|archived here]].+A summary of Gaia Challenge ​II from the Collisional systems working group can be found [[:​tests:​collision:​GC2_archive|here]]. Preliminary results from the Gaia Challenge ​workshop in Surrey are [[:​tests:​collision:​GC1_archive|archived here]].
  
-Mock datasets for all challenges ​from Gaia Challenge 2, can be downloaded [[:​tests:​collision:​mock_data|here]].+Mock datasets for all challenges can be downloaded [[:​tests:​collision:​mock_data|here]].
  
 Additional mock datasets and ideas for new challenges are listed [[:​tests:​collision:​new_challenges|here]]. Additional mock datasets and ideas for new challenges are listed [[:​tests:​collision:​new_challenges|here]].
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-===== Goals/​ideas ​for Gaia Challenge ​3 =====+Ideas and goals for the Gaia Challenge ​III workshop (Barcelona) are listed [[:​tests:​collision:​GC3|here]].
  
-===A. Method comparison (now Challenge #4):=== 
-[[:​tests:​collision:​method_comp|Jeans modelling vs. Distribution-function]] based models for fitting mock data of GCs. 
-We will start with $N$-body snapshots of the M4 models by Heggie (2014): http://​datashare.is.ed.ac.uk/​handle/​10283/​618 
  
-===B. Understanding ​Gaia errors:​=== +Throughout the Gaia Challenge I-III workshops, we have tackled four specific challenges:
-What will Gaia actually give us (for GCsopen clusters, runaway stars, hypervelocity stars)? What can we do with TGAS?+
  
 +**1. Single mass clusters: the interplay of anisotropy and tides (Zocchi et al. in prep)**
  
-===CPotential escapers:​=== +**2Clusters with mass spectrum: testing the validity of multi-mass models (Peuten et al. in prep)**
-a) quantify biases from ignoring them+
  
-btowards self-consistent mixture models with potential escapers+**3. Observational biases (Sollima et al. 2015)**
  
 +**4. Method comparison: Jeans modelling vs Distribution-function based models**
  
-===D. Rotation:=== +Many of the challenges make use of LIMEPY ([[http://​arxiv.org/​abs/​1508.02120|Gieles & Zocchi 2015]]) developed ​in the context of the Gaia Challenge.
-include prescription for rotation ​in multi-mass DF models.+
tests/collision.1441103437.txt.gz · Last modified: 2015/09/01 10:30 by v.henault-brunet