May 4, 2023
Attendees: Pedro, Loren, Anish, Pooja, Riley
Data processing
Preshanth Jagannathan shared that for continuum observations the final image is convolved with the beam at the weighted average of the band.
For this to work we would need to deconvolve the GDIGS-Low cubes and make an assumption about the underlying structures (e.g., multi-scale clean versus point source clean).
This would take a long time to investigate.
What is the sidelobe level for the GBT prime focus RXs?
Example: For a 100 mK line and sidelobes at the 15 dB level, the contribution is ~3 mK.
For now; create a cube for each line at its own resolution, and a stacked cube with the beam of the lowest frequency line.
Cygnus X
Riley uploaded the results from the Gaussian decomposition to the AstroCloud. They are in products/agd (this link is read only).
Riley will also upload the code he used so we can use it as a template.
Riley is working on the AGD for the regridded cubes.
Other
Loren put in a proposal to have his student Dylan work in Green Bank for a year (School year 2023-2024).
GDIGS-Low is actively being observed.
Pooja has been learning how to use Gausspy+ to apply the AGD to other fields. Knowledge transfer between Riley & Pooja.
There is an error when trying to run Gausspy+ on the 800 MHz data. Pooja will share the error so we can try to fix it.