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ACES-CMZ / reduction_ACES

Reduction scripts and tools for ACES
https://worldwidetelescope.org/webclient/?wtml=https://data.rc.ufl.edu/pub/adamginsburg/ACES/mosaics/mosaics.wtml
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J1744-3116 HCO+ (spw29) absorption calibration problem #323

Open ashleythomasbarnes opened 1 year ago

ashleythomasbarnes commented 1 year ago

Splitting from https://github.com/ACES-CMZ/reduction_ACES/issues/178 to help tracking of this specific issue

ashleythomasbarnes commented 1 year ago

Testing effect with and without the absorption feature flagged in https://github.com/ACES-CMZ/reduction_ACES/issues/266

ashleythomasbarnes commented 1 year ago

Comparison of pipeline properties from weblogs

Property With absorption feature Without absorption feature
Phase calibrator calibration (spw 29) ——————————— ———————————
Renormalization (X2d13, x822c) 1.030005, 1.029418 1.030005, 1.029418
Gfluxscale (mJy) 613.723 656.982
Property With absorption feature Without absorption feature
Phase calibrator imaging (spw 29) ——————————— ———————————
Final theoretical sensitivity (mJy/beam) 0.24 0.26
Clean residual peak 4.56 4.08
Non-pbcor image RMS (mJy/beam) 0.26 0.3
Pbcor image max / min (mJy/beam) 611 / -1.02 653 / -0.953
Property With absorption feature Without absorption feature
Target imaging (spw 29) ——————————— ———————————
Final theoretical sensitivity (mJy/beam) 10 10
Clean residual peak -8.70 -8.69
Non-pbcor image RMS (mJy/beam) 10 10
Pbcor image max / min (mJy/beam) 882 / -223 883 / -223
ashleythomasbarnes commented 1 year ago

CONTINUUM

Summary -- differences in the continuum image - very minor but this is not surprising given that spw29 makes up only a small part of the continuum bandwidth

Cont emission map cont_map

Cont emission map difference cont_diff_map

Cont emission map difference scatter plot cont_diff_scatter

Cont emission map difference scatter plot - ratio of fractional difference on y-axis cont_diffratio_scatter

Same as above but zoomed-in on y-axis cont_diffratio_scatterzoom

ashleythomasbarnes commented 1 year ago

LINE - SPW29 MOM0

Integrated intensity moment map - flagged absorption feature mom0_map

Integrated intensity moment map - flagged absorption feature difference mom0_diff_map

Integrated intensity moment map - flagged absorption feature difference mom0_diffratio_scatterzoom

ashleythomasbarnes commented 1 year ago

LINE - SPW29 MAX

Maximum moment map - flagged absorption feature max_map

Maximum moment map - flagged absorption feature difference max_diff_map

Maximum moment map - flagged absorption feature difference max_diffratio_scatterzoom