Updates log

This page summarizes the public SIMIO version history and the main changes introduced in each release.

SIMIO update version 1.2

SIMIO v1.2

November 21, 2023

SIMIO receives its second major update after public release:

  • Many small internal changes were implemented following comments from the JOSS reviewers. These updates do not change how SIMIO is executed from the terminal.
  • SIMIO now works in CASA version 6.X, although CASA 5.4.X and 5.6.X are still the recommended versions.
SIMIO update version 1.1

SIMIO v1.1

August 7, 2022

SIMIO receives its first major update after public release:

  • The function add_noise works as a wrapper for CASA sm.setnoise in simple-noise mode, so simple thermal noise can be added to synthetic SIMIO observations.
  • The function easy_mod_tclean was modified internally, with gain=0.06, scales=[0, 4, 8, 24], and smallscalebias=0.5. This should improve imaging time and help obtain smoother images with the TWHya template.
  • Tutorials were included to show how to include noise, change the source distance, and modify single geometric parameters.
  • The full documentation was included in GitHub and Read the Docs.
  • Descriptions of all the functions were updated.
SIMIO update version 1.0

SIMIO v1.0

March 9, 2022

SIMIO is in its first publicly available version:

  • The Fourier Transform routine was updated to work with the CASA task ft. The calculation of the visibilities with python galario is still available through the old get_mod_ms function, but get_mod_ms_ft should be preferred.
  • The model in .out file is now also returned in .fits format, with the coordinate information of the template and the flux scaled to the specified distance.
  • Image rotation and inclination options were added to the visibility calculator that works with the CASA ft task.
  • Distance can now be set as an independent parameter. The default target distance is the template distance, but this can be modified when creating a simio_object.
  • The flux can be modified to meet a desired value. To make the final image have a certain flux after distance correction, input this flux with the rescale_flux argument of simio_object.

March 11, 2022

  • Template Elias24 was added to the ALMA Band 6 section.
  • The tutorial to create a template was added to the webpage, with Elias24 as the example.
  • The webpage was updated with detailed template information.
SIMIO update version 0.5

SIMIO v0.5

November 11, 2021

SIMIO is in its first working version:

  • Only available through private request.
  • Available templates are HD163296, LkHa330, MYLup, and TWHya in ALMA Band 6, at 230 GHz. For ALMA Band 7, at 345 GHz, PDS70 is available.
  • The Fourier Transform routine is based on python galario, which is optimized for speed.