ALMA-IMF Kinematics Telecon - June 8th, 2021

Kinematics WG activities

Attendees: Amy, Timea, Fred, Rodrigo, Allison, Daniel, Fabrice, Meliane, Nico, Roberto, Tapas, Nichol, Adam, Gemma
Not attending:  

Time: 12:00 UT 
(Morelia = UT - 5; Chile = EST = UT - 4; JST = UT + 9; CEST = UT + 2; …)

Join Zoom Meeting
https://reuna.zoom.us/j/83203745306 

Agenda items: 

• TP combination update. 
  

Rodrigo: here are my slides for tomorrow 
https://drive.google.com/file/d/1nAXc93J4QfViMOc022BEhLVL4QuGnCNd/view?usp=sharing

• Questions at the end were:
  
• Any feedback on the error?
  
  • It is indicating that the startmodel cube is not the same shape
    
• Feedback on feathering?
  
  • What does feather do? http://keflavich.github.io/blog/what-does-feather-do.html 
    
• Any tests I should do?
  
  • Discussion of comparison of total flux in SD vs total flux in interferometer for a channel where we expect the interferometer to recover all flux (e.g., for a true point source).  Unclear if a true point source frame exists
    
  • Amy suggested power spectrum plots
    
    • (some examples from Adam: https://keflavich.github.io/talks/FeatheringPresentation/FeatheringPresentation.slides.html?transition=fast#/30 , https://github.com/keflavich/talks/blob/gh-pages/FeatheringPresentation/FeatheringPresentation.ipynb )
      
• Suggested other software:
  
  • Tp2vis https://github.com/tp2vis/distribute 
    
  • https://github.com/radio-astro-tools/uvcombine (there are examples https://github.com/radio-astro-tools/uvcombine/tree/master/examples )
    
  • Paper: https://arxiv.org/pdf/1903.07611.pdf