[ET Trac] #2619: include Ellipitca (reader) in Einstein Toolkit

[Alireza R.]

#2619: include Ellipitca (reader) in Einstein Toolkit

 Reporter: Roland Haas
   Status: open
Milestone: ET_2023_05
  Version: 
     Type: enhancement
 Priority: major
Component: 

Comment (by Alireza R.):

”Attached, please find the orbit comparisons between BAM and ETK codes. As far as the loading of the initial data goes, they match, i.e., the metric and hydro fields populated on the correct region of the grid and, as a result, orbiting in the expected direction. There is an offset for NS trajectories, and I believe the difference is related to the grid structure that we set in the parameter file.  
The deviation of BH trajectories is something that we are investigating now and requires more time to find out the best configuration for this new BHNS system. Please let me know what you think and if this is sufficient to include Elliptica in this release. Thanks!”

![](https://bitbucket.org/repo/8zBLME5/images/1799990597-NS_traj.png)
![](https://bitbucket.org/repo/8zBLME5/images/2669441114-BH_traj.png)
![](https://bitbucket.org/repo/8zBLME5/images/1887534472-BHNS_traj.png)
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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2619/include-ellipitca-reader-in-einstein
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