May 2025 – IMAGER

2025-05: New demo scripts

New interactive demo scripts are available.

This includes the following possibilities:

simulate (setting up an ALMA simulation)
polar (handling polarization data)
advanced (spectral line cases: imaging with continuum and multi-scale spectral clean)
selfmosaic (selfcal demonstration on a spectral line case for a Mosaic)
restart (continuum + spectral line case using CLEAN /RESTART option)

Just type @gag_demo:demo to start with, and enter your preferred demo name at MYDEMO = to get it running.

2025-05🪲: PIPELINE

Significant Bug correction in the distributed version 4.5 (and beyond):

In Version 4.4, the PIPELINE happened to crash in some modes because of a bug which prevented the CLEAN /RESTART command to correctly operate on large data sets.

2025-05-15: New Major Release (4.5)

The new version (4.5-01, April 2025) is now fully available for installation on Linux, Windows and MacOs (including a MacPorts package).

Version 4.5 is a critical release. The major improvements include:

Self-calibration of Mosaics for multiple channels
More robust PIPELINE operation
Better noise estimate on data cubes (STATISTIC)
Methods GUETH and SAULT available for Mosaics
New engine for MODEL command using Clean Components
New engine for Self-calibration on very wide bands
Command UV_CONTINUUM is deprecated: UV_MAP /CONT and UV_FIT /CONT should be used instead