[daip] [!9210]: AIPS - Beam Area calculation

[Scott Hyman]

Scott Hyman updated #9210
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 Beam Area calculation
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           Ticket ID: 9210
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/9210
           Full Name: Scott Hyman
               Email: shyman at sbc.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 27 October 2016 07:08 PM
             Updated: 27 October 2016 08:50 PM
                 Due: 31 October 2016 07:08 PM (3d 22h 18m)
      Resolution Due: 04 November 2016 07:08 PM (7d 22h 18m)




Correction:  I was using the sigma to FWHM conversion of 2.355 for a 1-d gaussian.  For 2-d gaussian, it would be pi*(20*2.402/4)^2 = 453 pixels, agreeing with IMSTAT.  But in the units "Jy per beam", is a "beam" defined in terms of the half max point or the 1 sigma point?   I'm not sure why I've always assumed the former.

Scott

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