Open keflavich opened 2 years ago
djeff1887
commented
2 years ago Pretty significant divergence in spw24
The same features are reflected in the residuals and the model
Also not immediately sure which line this is (probably HCO+), but there's some very interesting structure in the spectra here in spw20:
The continuum selection here isn't great, although that's likely just because there's signal everywhere.
djeff1887
commented
1 year ago Tried several cyclefactor settings to get this working. Increasing to 2 and 3 caused marginal improvements, but the divergence just moved to other channels. Increasing to cyclefactor= 4 has the divergence. For reference, this was my tclean command:
tclean(vis=['uid___A002_Xf99bb0_X4b17_target.ms', 'uid___A002_Xf99bb0_Xdc87_target.ms', 'uid___A002_Xf99bb0_X14cb0_target.ms', 'uid___A002_Xf99bb0_X15bac_target.ms', 'uid___A002_Xf99bb0_X1c2dc_target.ms', 'uid___A002_Xf99bb0_X1ce9a_target.ms'], field='Sgr_A_star', spw=['24', '24', '24', '24', '24', '24'], antenna=['0,1,2,3,4,5,6,7,8&', '0,1,2,3,4,5,6,7,8&', '0,1,2,3,4,5,6,7,8&', '0,1,2,3,4,5,6,7,8&', '0,1,2,3,4,5,6,7&', '0,1,2,3,4,5,6,7&'], scan=['6,9,12,15,18', '7,10,13,16,19', '7,10,13,16,19', '6,9,12,15,18', '7,10,13,16,19', '7,10,13,16,19'], intent='OBSERVE_TARGET#ON_SOURCE', datacolumn='corrected', imagename='uid___A001_X15a0_Xcc.s38_0.Sgr_A_star_sci.spw24.cube.I.iter1.cyclefac4', imsize=[360, 320], cell=['1.8arcsec'], phasecenter='ICRS 17:45:33.5989 -029.09.46.815', stokes='I', specmode='cube', nchan=3833, start='97.6665042690GHz', width='0.4882565MHz', outframe='LSRK', perchanweightdensity=True, gridder='mosaic', mosweight=True, usepointing=False, pblimit=0.2, deconvolver='hogbom', restoration=True, restoringbeam='common', pbcor=True, weighting='briggsbwtaper', robust=0.5, npixels=0, niter=799999, threshold='0.157Jy', nsigma=0.0, interactive=0, usemask='auto-multithresh', sidelobethreshold=1.25, noisethreshold=5.0, lownoisethreshold=2.0, negativethreshold=0.0, minbeamfrac=0.1, growiterations=75, dogrowprune=True, minpercentchange=1.0, fastnoise=False, restart=False, savemodel='none', calcres=True, calcpsf=True, parallel=True, cyclefactor=4)
(cycle4 image, model, res, cycle3 image)
keflavich
commented
1 year ago Moved spw24 into reimaging_20230118/; reimaging should trigger soon.
Sgr_A_st_h_03_7M uid://A001/X15a0/Xcc
[x] Observations completed?
[x] Delivered?
[x] Downloaded? (specify where)
[ ] Weblog unpacked
[x] Weblog Quality Assessment?
Extra Weblog Sgr_A_st_h_03_7M_1 -> pipeline-20220704T040055, Extra Weblog Sgr_A_st_h_03_7M_0 -> pipeline-20220629T122046
[x] Imaging: Continuum
[x] Imaging: Lines
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