Results 1 to 3 of 3

Thread: The radio telescopes at ALMA

  1. #1
    Join Date
    Oct 2021
    Posts
    1

    The radio telescopes at ALMA

    Hi everyone,

    Why are the radio telescopes at ALMA spaced in such an apparently haphazard way?

    I know they can be moved about for wide and narrow-angle results, but in wide field photos of the site, they seem to be randomly situated all over the place!

    Why is this?

    Thanks in advance!!!

  2. #2
    Join Date
    Jul 2005
    Location
    Massachusetts, USA
    Posts
    22,196
    I am not certain, but I understand that for radio interferometry to work best you need a diversity of distance ratios between the many antennae. A regular pattern produces an image with more aliasing.
    Forming opinions as we speak

  3. #3
    Join Date
    Jan 2008
    Posts
    722
    Yes and some of the larger patterns are also just allowing for the terrain.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •