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2020 Follow-up: Improving Image Fidelity on Astronomical Data

AIM

This is a follow-up of the DC2019 workshop, and a sprint to make progress on the Github page. A lot of work has already been done, which should not be lost or forgotten, and some final coordination is needed to close out the manuscript.

Specific goals are (to be discussed with team):

  • Return to manuscript draft, before July 29
  • Develop specific tasks for each team, July 29-31
  • Share data/scripts, and test methods, July 31-August 24
  • Develop publicly sharable code, before August 24
  • Final hack-a-thon, August 24-28
  • Robust manuscript draft, end of Oct??

FORMAT

We will dedicate two ''work weeks'' on July 29-31; and again August 24-28. In between, we will meet every Thursday (06/08/20, 13/08/20, 20/08/20).

Our Zoom meetings will be held at UTC 11-13. These are mornings in the US (~7:00-9:00 EDT; 5:00 MT); afternoon in Europe (13:00-15:00); and night in Japan (20:00-22:00) and in Australia (21:00-23:00).

Zoom connection information in Slack channel #manuscript-leads

WEEK 0 (Jul 29-31), Work Week #1:

Minutes/notes here

  • 29/07 Wednesday 11-12 UT:
    • General opening discussion
    • Discuss methods; Each sub-team makes a 5 minute presentation (informal)
  • 29/07 Wednesday 12:10-13 UT:
    • Discuss datasets; Each sub-team makes a 5 minute presentation (informal)
    • Make a 3-day plan with action-items
  • 30/07 Thursday 11-12 UT:
    • Assessment methods (Alvaro)
  • 30/07 Thursday 12:10-13 UT:
    • Discussion on consistent imaging (TCLEAN/sdintimaging) techniques
    • Short updates from any team
  • 31/07 Friday 11-12 UT:
    • Select a color map for plots
    • Make a list of important output plots for manuscript
  • 31/07 Friday 12:10-13 UT:
    • Manuscript outline
    • Plan for August

WEEK 1 (Aug 3-7): - see also: https://github.com/teuben/dc2019/issues

  • Make the "sky model" with a few point sources. Notify the group when it's ready. [[AI: Peter/Dirk ]] - See: skymodel-b.fits on Slack
  • Determine common observing setup for the 12m/7m/TP simulated observations, and send feedback to Toshi about the simulated data setup. [[AI: Devaky]] - Per pointing: 20min (12m); 1 hour (7m); 80 min (TP). Total 12m observing time is ~17 hours.
  • Generate the simulated observations of the skymodel-b (from Peter/Dirk) [[AI: Toshi/Yusuke]] - By email from Toshi/forwarded by Adele
  • Wednesday: Suggest colormap possibilities to vote. [[AI: All]] - List here
  • Friday: Vote on colormap for observational images. [[AI: All]] - Winner is cmr.rainforest, runner-up is CMRmap.
  • Weekly meeting on Thursday @ UTC 11-12 (any additional discussion from 12-13).

WEEK 2 (Aug 10-14):

  • First half of week: Define the details of the TCLEAN method [[AI: Dirk]] - Dirk sent script , see scriptForImaging.py and scriptForImaging-hogbom-combined_int.py
  • Run combinations on simulated observations [[AI: Methods teams]] - Ongoing
  • Provide scripts for combination methods. [[AI: Methods teams]] - First drafts going in scripts4paper
  • Weekly meeting on Thursday @ UTC 11-12 (any additional discussion from 12-13).

Datasets needed for QA by Aug. 17. For each DC method we need:

  • Initial Skymodel
  • TP map
  • Final combined (TP+ACA+12m) map at it highest resolution
  • Intermediate products (if created): i.e. TP+ACA only map Format: either FITS or CASA images

WEEK 3 (Aug 17-21):

  • Assessment [[AI: Alvaro]]
  • Select a colormap for assessment plots [[AI: Alvaro]]
  • Run combination methods on M100 (running on other observational datasets will be postponed) [[AI: Dataset teams]]
  • Weekly meeting on Thursday @ UTC 11-12 (any additional discussion from 12-13).

WEEK 4 (Aug 24-28), Work Week #2:

Minutes/notes here

  • 25/08 Tuesday 11-12 UT:
  • 25/08 Tuesday 12:10-13 UT:
    • Assessment methods (Alvaro)
    • Coordinate who will run each method as a second test
  • 26/08 Wednesday 11-12 UT:
    • Discuss factors (wtfactor; sdgain; sdfactor); and any other parameters
  • 26/08 Wednesday 12:10-13 UT:
    • Report about each "second test"
  • 27/08 Thursday 11-12 UT:
    • Assessment methods (Alvaro)
  • 27/08 Thursday 12:10-13 UT:
    • Planning next steps

Preferred communication:

Via Slack, datacomb2019.slack.com

Updated minutes/notes for all meetings here

PARTICIPANTS

All leaders of the sub-teams, and active members who are testing methods and developing the manuscript draft.

  • Nickolas Pingel (Australia)
  • Toshi Takagi (Japan)
  • Yusuke Miyamoto (Japan)
  • Kelley Hess (EU)
  • Dirk Petry (EU)
  • Alvaro Hacar (EU)
  • Adele Plunkett (NA)
  • Devaky Kunneriath (NA)
  • Peter Teuben (NA)
  • Brian Mason (NA) will participate in August
  • Urvashi Rau (NA) will participate in August
  • Tim Braun (NA) to be confirmed

Anyone who would like to dedicate time to this is welcome to participate! Contact Adele, or anyone listed here.

TECHNIQUES

OBSERVATIONAL DATASETS

  • M100, Team: Peter
  • SMC, Team: Dirk
  • Lupus 3 mms outflow, Team: Adele
  • HI, Team: Nick, Kelley

SIMULATED DATA

  • Led by Toshi, Yusuke

ASSESSMENT METHODS

  • Led by Alvaro