#------------------------------------------------- # NGC3521, Raster, Combining all data, Mar 08 run #------------------------------------------------- ------------------------------------------------------------------------------- INITIAL REDUCTION USING NEAREST SPREAD: # Full cube for all observations up to March 2008 except one bad pointing scan (6.5 MSBs) makecube in="a2008031*_flagspike.sdf" autogrid=true crota=17 pixsize=7.2761 sparse=false spread='nearest' specbounds=\"380.0 1190.0\" out=ngc3521_combine reset # Projection parameters used: # CRPIX1 = 28.9551020376384 # CRPIX2 = 38.9551020376384 # CRVAL1 = 166.45375 ( RA = 11:05:48.9 ) # CRVAL2 = -0.035 ( Dec = -0:02:06 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 17 # # Output cube pixel bounds: ( -26:30, -37:39, -953:951 ) # Output cube WCS bounds: # Right ascension: 11:05:29.7 -> 11:06:07.1 # Declination: -0:07:36 -> 0:03:21 # Optical velocity (USB): 379.603 -> 1190.256 km/s # Very wide line (460 km/s), not much baseline to work with, dropping back to order 1 mfittrend ngc3521_combine ranges=\"380 530 1050 1190\" order=1 axis=3 out=ngc3521_combine_base1 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 380.0274 : 529.9135 km/s (-953 : -600) # 1049.941 : 1189.829 km/s (622 : 950) sub ngc3521_combine ngc3521_combine_base1 ngc3521_combine_sub1 compave ngc3521_combine_sub1 ngc3521_combine_sub1_20kms compress="[1,1,47]" stats 'ngc3521_combine_sub1_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0242985 stats 'ngc3521_combine_sub1_20kms(~25,~25,380.0:530.0)' | grep Standard # Standard deviation : 0.0229802 stats 'ngc3521_combine_sub1_20kms(~25,~25,1050.0:1190.0)' | grep Standard # Standard deviation : 0.0167531 ------------------------------------------------------------------------------- NOW SINCSINC: makecube in="a2008031*_flagspike.sdf" autogrid=true crota=17 pixsize=7.2761 sparse=false spread='sincsinc' params='[1,2]' specbounds=\"380.0 1190.0\" out=ngc3521_sincsinc reset # Projection parameters used: # CRPIX1 = 28.9551020376384 # CRPIX2 = 38.9551020376384 # CRVAL1 = 166.45375 ( RA = 11:05:48.9 ) # CRVAL2 = -0.035 ( Dec = -0:02:06 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 17 # # Output cube pixel bounds: ( -26:30, -37:39, -953:951 ) # Output cube WCS bounds: # Right ascension: 11:05:29.7 -> 11:06:07.1 # Declination: -0:07:36 -> 0:03:21 # Optical velocity (USB): 379.603 -> 1190.256 km/s # # # WARNING: Cannot create output Tsys values. chpix in=ngc3521_sincsinc out=ngc3521_sincsinc_spikebad section=\":,:,-310:-301\" newval=bad ndfcopy in=ngc3521_sincsinc_spikebad'(-12:14,-25:25,)' out=ngc3521_sincsinc_trim mfittrend ngc3521_sincsinc_trim ranges=\"380 530 1050 1190\" order=1 axis=3 out=ngc3521_sincsinc_trim_base1 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 380.0274 : 529.9135 km/s (-953 : -600) # 1049.941 : 1189.829 km/s (622 : 950) sub ngc3521_sincsinc_trim ngc3521_sincsinc_trim_base1 ngc3521_sincsinc_trim_sub1 compave ngc3521_sincsinc_trim_sub1 ngc3521_sincsinc_trim_sub1_20kms compress="[1,1,47]" stats 'ngc3521_sincsinc_trim_sub1_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0224895 stats 'ngc3521_sincsinc_trim_sub1_20kms(~25,~25,380.0:530.0)' | grep Standard # Standard deviation : 0.0172236 stats 'ngc3521_sincsinc_trim_sub1_20kms(~25,~25,1050.0:1190.0)' | grep Standard # Standard deviation : 0.0155197 ------------------------------------------------------------------------------- BASELINE MASK PRODUCTION: # First produce a smoothed cube to identify the line and make masks with mfittrend block in=ngc3521_sincsinc_trim out=ngc3521_sincsinc_trim_vsmooth 'axes=[1,3] box=[1,25]' block in=ngc3521_sincsinc_trim_vsmooth out=ngc3521_sincsinc_trim_smooth 'axes=[1,2] box=[3,3]' mfittrend in=ngc3521_sincsinc_trim_smooth axis=3 order=1 out=ngc3521_sincsinc_trim_smooth_base1 auto mask=ngc3521_sincsinc_trim_smooth_basemsk1 method=single variance=false subtract=false 'clip=[2,3]' mfittrend in=ngc3521_sincsinc_trim_smooth axis=3 order=1 out=ngc3521_sincsinc_trim_smooth_base1g auto mask=ngc3521_sincsinc_trim_smooth_basemsk1g method=global variance=false subtract=false 'clip=[2,2.5,3]' add ngc3521_sincsinc_trim_smooth_basemsk1 ngc3521_sincsinc_trim_smooth_basemsk1g ngc3521_trim_basemask0 chpix in=ngc3521_trim_basemask0 out=ngc3521_trim_basemask0_end1 section=\":,:,-954:-600\" newval=0 chpix in=ngc3521_trim_basemask0_end1 out=ngc3521_trim_basemask0_end2 section=\":,:,622:951\" newval=0 cadd ngc3521_trim_basemask0_end2 1 ngc3521_trim_basemask1 mult ngc3521_sincsinc_trim ngc3521_trim_basemask1 ngc3521_sincsinc_trim_masked mfittrend ngc3521_sincsinc_trim_masked ranges=\"390 1180\" order=3 axis=3 out=ngc3521_sincsinc_trim_masked_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 389.7888 : 1179.589 km/s (-930 : 926) sub ngc3521_sincsinc_trim ngc3521_sincsinc_trim_masked_base3 ngc3521_sincsinc_trim_submask3 compave ngc3521_sincsinc_trim_submask3 ngc3521_sincsinc_trim_submask3_20kms compress="[1,1,47]" stats 'ngc3521_sincsinc_trim_submask3_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0203962 stats 'ngc3521_sincsinc_trim_submask3_20kms(~25,~25,380.0:530.0)' | grep Standard # Standard deviation : 0.0171846 stats 'ngc3521_sincsinc_trim_submask3_20kms(~25,~25,1050.0:1190.0)' | grep Standard # Standard deviation : 0.0149384 ------------------------------------------------------------------------------- CREATE MOMENT MAPS: mkdir Moment_sincsinc cp ngc3521_sincsinc_trim_submask3.sdf Moment_sincsinc/ngc3521_sincsinc_trim_submask3_rembsl.sdf cp ngc3521_trim_basemask1.sdf Moment_sincsinc/ngc3521_sincsinc_trim_submask3_msk.sdf cp ../NGC3031/Moment_sincsinc/REDUCE_SCIENCE_GRADIENT Moment_sincsinc/ cd Moment_sincsinc *Edit RSG Script: emacs REDUCE_SCIENCE_GRADIENT & set object = "ngc3521_sincsinc_trim_submask3" set vrange = "low=530 high=1050" # 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(-7:9,-16:16,-895:893): 0.008979856322197 Rotate intvel maps: rotate ngc3521_sincsinc_trim_submask3_intvel20 ngc3521_sincsinc_trim_submask3_intvel20_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel25 ngc3521_sincsinc_trim_submask3_intvel25_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel30 ngc3521_sincsinc_trim_submask3_intvel30_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel35 ngc3521_sincsinc_trim_submask3_intvel35_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel40 ngc3521_sincsinc_trim_submask3_intvel40_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel45 ngc3521_sincsinc_trim_submask3_intvel45_rot angle=! rotate ngc3521_sincsinc_trim_submask3_intvel50 ngc3521_sincsinc_trim_submask3_intvel50_rot angle=! (contoured totint maps and velocity maps then made using gaia) ------------------------------------------------------------------------------- MAKE CUBES DISPLAYING S/N RATIO: collapse in=ngc3521_sincsinc_trim_submask3.sdf low=380 high=530 axis=vopt out=sigma_low estimator=sigma reset collapse in=ngc3521_sincsinc_trim_submask3.sdf low=1050 high=1190 axis=vopt out=sigma_high estimator=sigma reset block ngc3521_sincsinc_trim_submask3_20kms.sdf ngc3521_sincsinc_trim_submask3_20kms_bin5.sdf axes="[2,3]" box="[1,5]" estimator=mean block ngc3521_sincsinc_trim_submask3_20kms.sdf ngc3521_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=ngc3521_sincsinc_trim_submask3_20kms_bin5.sdf confirm=false reset cdiv sigma_low_3d 6.85565 sigma_low_20kms div ngc3521_sincsinc_trim_submask3_20kms_bin5.sdf sigma_low_20kms.sdf ngc3521_sincsinc_trim_submask3_20kms_bin5_SN.sdf div ngc3521_sincsinc_trim_submask3_20kms_bin9.sdf sigma_low_20kms.sdf ngc3521_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/ngc3521_sincsinc_trim_submask3_rembsl_findclump20.sdf . cp ../Moment_sincsinc/ngc3521_sincsinc_trim_submask3_totint20.sdf . add sigma_high sigma_low out=sigma_sum cdiv sigma_sum.sdf 2 sigma_avg collapse in= ngc3521_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 ngc3521_totint20_noise div ngc3521_sincsinc_trim_submask3_totint20.sdf ngc3521_totint20_noise ngc3521_totint20_SN (contoured SN maps then made using gaia) ------------------------------------------------------------------------------- TRIM OUT NOISE FROM TOTINT20 MAP: *Try trimming regions with SN < 2.0: thresh ngc3521_totint20_SN.sdf thrlo=2 newlo=bad thrhi=500 newhi=bad out=ngc3521_totint20_SN_thresh2 # There were 601 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc3521_totint20_SN_thresh2.sdf 0 ngc3521_zeroall_2 cadd ngc3521_zeroall_2 1 ngc3521_msk_2 mult ngc3521_msk_2.sdf ngc3521_sincsinc_trim_submask3_totint20.sdf ngc3521_totint20_noisetrim2 *Try trimming regions with SN < 1.5: thresh ngc3521_totint20_SN.sdf thrlo=1.5 newlo=bad thrhi=500 newhi=bad out=ngc3521_totint20_SN_thresh15 # There were 503 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc3521_totint20_SN_thresh15.sdf 0 ngc3521_zeroall_15 cadd ngc3521_zeroall_15.sdf 1 ngc3521_msk_15 mult ngc3521_msk_15.sdf ngc3521_sincsinc_trim_submask3_totint20.sdf ngc3521_totint20_noisetrim_15 ------------------------------------------------------------------------------- MAKE TOTINT30 NOISE and SN MAPS: cp ../Moment_sincsinc/ngc3521_sincsinc_trim_submask3_rembsl_findclump30.sdf . cp ../Moment_sincsinc/ngc3521_sincsinc_trim_submask3_totint30.sdf . collapse in= ngc3521_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 ngc3521_totint30_noise div ngc3521_sincsinc_trim_submask3_totint30.sdf ngc3521_totint30_noise ngc3521_totint30_SN (contoured SN maps then made using gaia)