#--------------------------------------------------------------- # NGC2976, Raster, Combining all data, Nov 07 run to Jan 08 run #--------------------------------------------------------------- ------------------------------------------------------------------------------- INITIAL REDUCTION USING NEAREST SPREAD: # All MSBs for this galaxy done on two different nights with good to very good weather. So we should have very good rms data. # Full cube for all observations up to January 2008 (4 MSBs) makecube in="a200*_flagspike.sdf" autogrid=true crota=37 pixsize=7.2761 sparse=false spread='nearest' specbounds=\"-380.0 430.0\" out=ngc2976_combined reset # Projection parameters used: # CRPIX1 = 22.9551020376384 # CRPIX2 = 28.4040816426277 # CRVAL1 = 146.814583333333 ( RA = 9:47:15.5 ) # CRVAL2 = 67.9163888888889 ( Dec = 67:54:59 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 37 # Output cube pixel bounds: ( -21:23, -25:29, -957:956 ) # Output cube WCS bounds: # Right ascension: 9:46:30.4 -> 9:47:59.5 # Declination: 67:50:44 -> 67:59:21 # Optical velocity (USB): -380.3309 -> 430.0835 km/s # WARNING: Tsys conversion factor has changed from 3.09809085193915e-06 to # 3.0983256057801e-06 (0.00757737110276648 %) in file a20080106_00056_flagspike mfittrend ngc2976_combined ranges=\"-380 -60 100 430\" order=3 axis=3 out=ngc2976_combined_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -379.9086 : -60.33004 km/s (-957 : -201) # 99.71519 : 429.659 km/s (177 : 955) sub ngc2976_combined ngc2976_combined_base3 ngc2976_combined_sub3 compave ngc2976_combined_sub3 ngc2976_combined_sub3_20kms compress="[1,1,47]" stats 'ngc2976_combined_sub3_20kms(~13,~13,:)' | grep Standard # Standard deviation : 0.0198795 stats 'ngc2976_combined_sub3_20kms(~13,~13,-380.0:-60.0)' | grep Standard # Standard deviation : 0.0182059 stats 'ngc2976_combined_sub3_20kms(~13,~13,100.0:430.0)' | grep Standard # Standard deviation : 0.0165178 ------------------------------------------------------------------------------- NOW SINCSINC: makecube in="a*" autogrid=true crota=37 pixsize=7.2761 sparse=false spread='sincsinc' params='[1,2]' specbounds=\"-380.0 430.0\" out=ngc2976_sincsinc reset # Projection parameters used: # CRPIX1 = 22.9551020376384 # CRPIX2 = 28.4040816426277 # CRVAL1 = 146.814583333333 ( RA = 9:47:15.5 ) # CRVAL2 = 67.9163888888889 ( Dec = 67:54:59 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 37 # Output cube pixel bounds: ( -21:23, -25:29, -957:956 ) # Output cube WCS bounds: # Right ascension: 9:46:30.4 -> 9:47:59.5 # Declination: 67:50:44 -> 67:59:21 # Optical velocity (USB): -380.3309 -> 430.0835 km/s # WARNING: Tsys conversion factor has changed from 3.09809085193915e-06 to # 3.0983256057801e-06 (0.00757737110276648 %) in file a20080106_00056_flagspike # WARNING: Cannot create output Tsys values. chpix in=ngc2976_sincsinc out=ngc2976_sincsinc_spikebad_temp section=\":,:,-433:-421\" newval=bad chpix in=ngc2976_sincsinc_spikebad_temp.sdf out=ngc2976_sincsinc_spikebad section=\":,:,-458:-468\" newval=bad ndfcopy in=ngc2976_sincsinc_spikebad'(-10:10,-16:21,)' out=ngc2976_sincsinc_trim mfittrend ngc2976_sincsinc_trim ranges=\"-380 -60 100 430\" order=3 axis=3 out=ngc2976_sincsinc_trim_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -379.9086 : -60.33004 km/s (-957 : -201) # 99.71519 : 429.659 km/s (177 : 955) sub ngc2976_sincsinc_trim ngc2976_sincsinc_trim_base3 ngc2976_sincsinc_trim_sub3 compave ngc2976_sincsinc_trim_sub3 ngc2976_sincsinc_trim_sub3_20kms compress="[1,1,47]" stats 'ngc2976_sincsinc_trim_sub3_20kms(~13,~13,:)' | grep Standard # Standard deviation : 0.0167469 stats 'ngc2976_sincsinc_trim_sub3_20kms(~13,~13,-380.0:-60.0)' | grep Standard # Standard deviation : 0.0156497 stats 'ngc2976_sincsinc_trim_sub3_20kms(~13,~13,100.0:430.0)' | grep Standard # Standard deviation : 0.0142633 ------------------------------------------------------------------------------- BASELINE MASK PRODUCTION: # First produce a smoothed cube to identify the line and make masks with mfittrend block in=ngc2976_sincsinc_trim out=ngc2976_sincsinc_trim_vsmooth 'axes=[1,3] box=[1,25]' block in=ngc2976_sincsinc_trim_vsmooth out=ngc2976_sincsinc_trim_smooth 'axes=[1,2] box=[3,3]' mfittrend in=ngc2976_sincsinc_trim_smooth axis=3 order=3 out=ngc2976_sincsinc_trim_smooth_base3 auto mask=ngc2976_sincsinc_trim_smooth_basemsk3 method=single variance=false subtract=false 'clip=[2,3]' mfittrend in=ngc2976_sincsinc_trim_smooth axis=3 order=3 out=ngc2976_sincsinc_trim_smooth_base3g auto mask=ngc2976_sincsinc_trim_smooth_basemsk3g method=global variance=false subtract=false 'clip=[2,2.5,3]' add ngc2976_sincsinc_trim_smooth_basemsk3 ngc2976_sincsinc_trim_smooth_basemsk3g ngc2976_trim_basemask0 chpix in=ngc2976_trim_basemask0 out=ngc2976_trim_basemask0_end1 section=\":,:,-957:-201\" newval=0 chpix in=ngc2976_trim_basemask0_end1 out=ngc2976_trim_basemask0_end2 section=\":,:,177:955\" newval=0 cadd ngc2976_trim_basemask0_end2 1 ngc2976_trim_basemask1 mult ngc2976_sincsinc_trim ngc2976_trim_basemask1 ngc2976_sincsinc_trim_masked mfittrend ngc2976_sincsinc_trim_masked ranges=\"-380 430\" order=3 axis=3 out=ngc2976_sincsinc_trim_masked_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -379.9086 : 429.659 km/s (-957 : 955) sub ngc2976_sincsinc_trim ngc2976_sincsinc_trim_masked_base3 ngc2976_sincsinc_trim_submask3 compave ngc2976_sincsinc_trim_submask3 ngc2976_sincsinc_trim_submask3_20kms compress="[1,1,47]" stats 'ngc2976_sincsinc_trim_submask3_20kms(~13,~13,:)' | grep Standard # Standard deviation : 0.0160717 stats 'ngc2976_sincsinc_trim_submask3_20kms(~13,~13,-380.0:-60.0)' | grep Standard # Standard deviation : 0.0161699 stats 'ngc2976_sincsinc_trim_submask3_20kms(~13,~13,100.0:430.0)' | grep Standard # Standard deviation : 0.0143338 ------------------------------------------------------------------------------- CREATE MOMENT MAPS: mkdir Moment_sincsinc cp ngc2976_sincsinc_trim_submask3.sdf Moment_sincsinc/ngc2976_sincsinc_trim_submask3_rembsl.sdf cp ngc2976_trim_basemask1.sdf Moment_sincsinc/ngc2976_sincsinc_trim_submask3_msk.sdf cp ../NGC3521/Moment_sincsinc/REDUCE_SCIENCE_GRADIENT Moment_sincsinc/ cd Moment_sincsinc *Edit RSG Script: emacs REDUCE_SCIENCE_GRADIENT & set object = "ngc2976_sincsinc_trim_submask3" set vrange = "low=-60 high=100" # Quick jumps to repeat parts of the reduction #goto STEP1a #goto STEP1b #goto STEP2 goto STEP3 foreach rmslev (2.0 2.5 3.0 3.5 4.0 4.5 5.0) **Remove trim function: # Multiply baselined cube with clump mask ${kap}/mult ${sdf} ${sdf}_findclump${rmslab} ${sdf}_clmsk${rmslab} # Trim the noisy edges # ${kap}/ndfcopy temp'(-26:26,-36:40,)' ${sdf}_clmsk${rmslab} \rm -f ${sdf}_mask_temp1.sdf ${sdf}_mask_temp2.sdf >& /dev/null ./REDUCE_SCIENCE_GRADIENT # RMS MASKED SMOOTHED CUBE(-6:6,-9:14,-899:898): 0.00833800633675294 Rotate intvel maps: rotate ngc2976_sincsinc_trim_submask3_intvel20 ngc2976_sincsinc_trim_submask3_intvel20_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel25 ngc2976_sincsinc_trim_submask3_intvel25_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel30 ngc2976_sincsinc_trim_submask3_intvel30_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel35 ngc2976_sincsinc_trim_submask3_intvel35_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel40 ngc2976_sincsinc_trim_submask3_intvel40_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel45 ngc2976_sincsinc_trim_submask3_intvel45_rot angle=! rotate ngc2976_sincsinc_trim_submask3_intvel50 ngc2976_sincsinc_trim_submask3_intvel50_rot angle=! (contoured totint maps and velocity maps then made using gaia) ------------------------------------------------------------------------------- MAKE CUBES DISPLAYING S/N RATIO: collapse in=ngc2976_sincsinc_trim_submask3.sdf low=-380 high=-60 axis=vopt out=sigma_low estimator=sigma reset collapse in=ngc2976_sincsinc_trim_submask3.sdf low=100 high=430 axis=vopt out=sigma_high estimator=sigma reset block ngc2976_sincsinc_trim_submask3_20kms.sdf ngc2976_sincsinc_trim_submask3_20kms_bin5.sdf axes="[2,3]" box="[1,5]" estimator=mean block ngc2976_sincsinc_trim_submask3_20kms.sdf ngc2976_sincsinc_trim_submask3_20kms_bin9.sdf axes="[2,3]" box="[1,9]" estimator=mean manic in=sigma_low out=sigma_low_3d axes="[1,2,0]" lbound=-19 ubound=40 reset wcscopy ndf=sigma_low_3d like=ngc2976_sincsinc_trim_submask3_20kms_bin5.sdf confirm=false reset cdiv sigma_low_3d 6.85565 sigma_low_20kms div ngc2976_sincsinc_trim_submask3_20kms_bin5.sdf sigma_low_20kms.sdf ngc2976_sincsinc_trim_submask3_20kms_bin5_SN.sdf div ngc2976_sincsinc_trim_submask3_20kms_bin9.sdf sigma_low_20kms.sdf ngc2976_sincsinc_trim_submask3_20kms_bin9_SN.sdf ------------------------------------------------------------------------------- MAKE TOTINT20 NOISE and SN MAPS: mkdir noise_maps cd noise_maps cp ../sigma_high.sdf . cp ../sigma_low.sdf . cp ../Moment_sincsinc/ngc2976_sincsinc_trim_submask3_rembsl_findclump20.sdf . cp ../Moment_sincsinc/ngc2976_sincsinc_trim_submask3_totint20.sdf . add sigma_high sigma_low out=sigma_sum cdiv sigma_sum.sdf 2 sigma_avg collapse in= ngc2976_sincsinc_trim_submask3_rembsl_findclump20.sdf out=test0 axis=vopt estimator=sum wlim=0.0 (must make mask to multiply by collapsed image so values are real, not integer, otherwise sqrt function below will round to nearest integer) cmult sigma_avg 0 test1 cadd test1 1.0 test2 mult test2 test0 test3 (now have same collapsed image with real, not integer values) maths exp="sqrt(IA)" out=test4 IA=test3 cmult test4 0.42 test5 mult sigma_avg test5 ngc2976_totint20_noise div ngc2976_sincsinc_trim_submask3_totint20.sdf ngc2976_totint20_noise ngc2976_totint20_SN (contoured SN maps then made using gaia) ------------------------------------------------------------------------------- TRIM OUT NOISE FROM TOTINT20 MAP: *Try trimming regions with SN < 2.0: thresh ngc2976_totint20_SN.sdf thrlo=2 newlo=bad thrhi=500 newhi=bad out=ngc2976_totint20_SN_thresh2 # There were 271 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc2976_totint20_SN_thresh2.sdf 0 ngc2976_zeroall_2 cadd ngc2976_zeroall_2 1 ngc2976_msk_2 mult ngc2976_msk_2.sdf ngc2976_sincsinc_trim_submask3_totint20.sdf ngc2976_totint20_noisetrim2 *Try trimming regions with SN < 1.5: thresh ngc2976_totint20_SN.sdf thrlo=1.5 newlo=bad thrhi=500 newhi=bad out=ngc2976_totint20_SN_thresh15 # There were 234 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc2976_totint20_SN_thresh15.sdf 0 ngc2976_zeroall_15 cadd ngc2976_zeroall_15.sdf 1 ngc2976_msk_15 mult ngc2976_msk_15.sdf ngc2976_sincsinc_trim_submask3_totint20.sdf ngc2976_totint20_noisetrim_15 ------------------------------------------------------------------------------- MAKE TOTINT30 NOISE and SN MAPS: cp ../Moment_sincsinc/ngc2976_sincsinc_trim_submask3_rembsl_findclump30.sdf . cp ../Moment_sincsinc/ngc2976_sincsinc_trim_submask3_totint30.sdf . collapse in= ngc2976_sincsinc_trim_submask3_rembsl_findclump30.sdf out=test6 axis=vopt estimator=sum wlim=0.0 mult test2 test6 test7 maths exp="sqrt(IA)" out=test8 IA=test7 cmult test8 0.42 test9 mult sigma_avg test9 ngc2976_totint30_noise div ngc2976_sincsinc_trim_submask3_totint30.sdf ngc2976_totint30_noise ngc2976_totint30_SN (contoured SN maps then made using gaia)