#------------------------------------------------- # NGC3351, Raster, Combining all data, Jan 08 run #------------------------------------------------- ------------------------------------------------------------------------------- INITIAL REDUCTION USING NEAREST SPREAD: # All MSBs for this galaxy done on two different nights, the first five in poorer weather (good band 4 night) and the last two in very good weather (a band 2 night). # Full cube for all observations up to January 2008 (7 MSBs) makecube in="a200*_flagspike.sdf" autogrid=true crota=347 pixsize=7.2761 sparse=false spread='nearest' specbounds=\"370.0 1180.0\" out=ngc3351_combined reset # Projection parameters used: # CRPIX1 = 25.5061224400997 # CRPIX2 = 31.7081632614136 # CRVAL1 = 160.991666666667 ( RA = 10:43:58.0 ) # CRVAL2 = 11.7038888888889 ( Dec = 11:42:14 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 347 # # Output cube pixel bounds: ( -24:26, -30:32, -953:951 ) # Output cube WCS bounds: # Right ascension: 10:43:42.0 -> 10:44:13.6 # Declination: 11:37:52 -> 11:46:42 # Optical velocity (USB): 369.5971 -> 1180.262 km/s # WARNING: Tsys conversion factor has changed from 3.09793225461649e-06 to # 3.09797031649302e-06 (0.00122862197758018 %) in file a20080112_00052_flagspike mfittrend ngc3351_combined ranges=\"370 625 925 1180\" order=3 axis=3 out=ngc3351_combined_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 370.0215 : 624.8783 km/s (-953 : -353) # 924.8887 : 1179.836 km/s (352 : 950) sub ngc3351_combined ngc3351_combined_base3 ngc3351_combined_sub3 # Really strong double horn profile showing up over a few pixels in the centre of the map even with the spetrum at the native resolution. This showed up in the smoothed cubes for both nights. The line is ~220 km/s wide, and looks to be about 3 sigma. compave ngc3351_combined_sub3 ngc3351_combined_sub3_20kms compress="[1,1,47]" trim=true reset # The line is strong enough to show up in the sigma maps over the whole bandpass stats 'ngc3351_combined_sub3_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.0189807 <- Will include the strong line stats 'ngc3351_combined_sub3_20kms(~21,~21,370.0:625.0)' | grep Standard # Standard deviation : 0.0149009 stats 'ngc3351_combined_sub3_20kms(~21,~21,925.0:1180.0)' | grep Standard # Standard deviation : 0.0129175 # We are getting an RMS well below our target, and our source looks to be detected in the central region. We will not need further MSBs for this galaxy. ------------------------------------------------------------------------------- NOW SINCSINC: makecube in="a*_flagspike.sdf" autogrid=true crota=347 pixsize=7.2761 sparse=false spread='sincsinc' params='[1,2]' specbounds=\"370.0 1180.0\" out=ngc3351_sincsinc reset # Projection parameters used: # CRPIX1 = 26.1122449040413 # CRPIX2 = 31.5734694004059 # CRVAL1 = 160.990416666667 ( RA = 10:43:57.7 ) # CRVAL2 = 11.7038888888889 ( Dec = 11:42:14 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 347 # # Output cube pixel bounds: ( -24:26, -30:32, -953:951 ) # Output cube WCS bounds: # Right ascension: 10:43:42.0 -> 10:44:13.6 # Declination: 11:37:52 -> 11:46:42 # Optical velocity (USB): 369.5971 -> 1180.262 km/s # # WARNING: Tsys conversion factor has changed from 3.09793225461649e-06 to # 3.09797031649302e-06 (0.00122862197758018 %) in file a20080112_00052_flagspike # # WARNING: Cannot create output Tsys values. chpix in=ngc3351_sincsinc out=ngc3351_sincsinc_spikebad section=\":,:,-442:-431\" newval=bad ndfcopy in=ngc3351_sincsinc_spikebad'(-12:16,-20:24,)' out=ngc3351_sincsinc_trim mfittrend ngc3351_sincsinc_trim ranges=\"370 625 925 1180\" order=3 axis=3 out=ngc3351_sincsinc_trim_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 370.0215 : 624.8783 km/s (-953 : -353) # 924.8887 : 1179.836 km/s (352 : 950) sub ngc3351_sincsinc_trim ngc3351_sincsinc_trim_base3 ngc3351_sincsinc_trim_sub3 compave ngc3351_sincsinc_trim_sub3 ngc3351_sincsinc_trim_sub3_20kms compress="[1,1,47]" stats 'ngc3351_sincsinc_trim_sub3_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.0169084 stats 'ngc3351_sincsinc_trim_sub3_20kms(~21,~21,370.0:625.0)' | grep Standard # Standard deviation : 0.0131141 stats 'ngc3351_sincsinc_trim_sub3_20kms(~21,~21,925.0:1180.0)' | grep Standard # Standard deviation : 0.0112803 ------------------------------------------------------------------------------- BASELINE MASK PRODUCTION: # First produce a smoothed cube to identify the line and make masks with mfittrend block in=ngc3351_sincsinc_trim out=ngc3351_sincsinc_trim_vsmooth 'axes=[1,3] box=[1,25]' block in=ngc3351_sincsinc_trim_vsmooth out=ngc3351_sincsinc_trim_smooth 'axes=[1,2] box=[3,3]' mfittrend in=ngc3351_sincsinc_trim_smooth axis=3 order=3 out=ngc3351_sincsinc_trim_smooth_base3 auto mask=ngc3351_sincsinc_trim_smooth_basemsk3 method=single variance=false subtract=false 'clip=[2,3]' mfittrend in=ngc3351_sincsinc_trim_smooth axis=3 order=3 out=ngc3351_sincsinc_trim_smooth_base3g auto mask=ngc3351_sincsinc_trim_smooth_basemsk3g method=global variance=false subtract=false 'clip=[2,2.5,3]' add ngc3351_sincsinc_trim_smooth_basemsk3 ngc3351_sincsinc_trim_smooth_basemsk3g ngc3351_trim_basemask0 chpix in=ngc3351_trim_basemask0 out=ngc3351_trim_basemask0_end1 section=\":,:,-954:-353\" newval=0 chpix in=ngc3351_trim_basemask0_end1 out=ngc3351_trim_basemask0_end2 section=\":,:,352:951\" newval=0 cadd ngc3351_trim_basemask0_end2 1 ngc3351_trim_basemask1 mult ngc3351_sincsinc_trim ngc3351_trim_basemask1 ngc3351_sincsinc_trim_masked mfittrend ngc3351_sincsinc_trim_masked ranges=\"370 1180\" order=3 axis=3 out=ngc3351_sincsinc_trim_masked_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 370.0215 : 1179.836 km/s (-953 : 950) sub ngc3351_sincsinc_trim ngc3351_sincsinc_trim_masked_base3 ngc3351_sincsinc_trim_submask3 compave ngc3351_sincsinc_trim_submask3 ngc3351_sincsinc_trim_submask3_20kms compress="[1,1,47]" stats 'ngc3351_sincsinc_trim_submask3_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.0148486 stats 'ngc3351_sincsinc_trim_submask3_20kms(~21,~21,370.0:625.0)' | grep Standard # Standard deviation : 0.0141969 stats 'ngc3351_sincsinc_trim_submask3_20kms(~21,~21,925.0:1180.0)' | grep Standard # Standard deviation : 0.0122992 ------------------------------------------------------------------------------- CREATE MOMENT MAPS: mkdir Moment_sincsinc cp ngc3351_sincsinc_trim_submask3.sdf Moment_sincsinc/ngc3351_sincsinc_trim_submask3_rembsl.sdf cp ngc3351_trim_basemask1.sdf Moment_sincsinc/ngc3351_sincsinc_trim_submask3_msk.sdf cp ../NGC2976/Moment_sincsinc/REDUCE_SCIENCE_GRADIENT Moment_sincsinc cd Moment_sincsinc *Edit RSG Script: emacs REDUCE_SCIENCE_GRADIENT & set object = "ngc3351_sincsinc_trim_submask3_spikebad" set vrange = "low=625 high=925" # 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(-6:10,-12:16,-895:893): 0.00726567422342459 Rotate intvel maps: rotate ngc3351_sincsinc_trim_submask3_intvel20 ngc3351_sincsinc_trim_submask3_intvel20_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel25 ngc3351_sincsinc_trim_submask3_intvel25_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel30 ngc3351_sincsinc_trim_submask3_intvel30_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel35 ngc3351_sincsinc_trim_submask3_intvel35_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel40 ngc3351_sincsinc_trim_submask3_intvel40_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel45 ngc3351_sincsinc_trim_submask3_intvel45_rot angle=! rotate ngc3351_sincsinc_trim_submask3_intvel50 ngc3351_sincsinc_trim_submask3_intvel50_rot angle=! (contoured totint maps and velocity maps then made using gaia) ------------------------------------------------------------------------------- MAKE CUBES DISPLAYING S/N RATIO: collapse in=ngc3351_sincsinc_trim_submask3.sdf low=370 high=625 axis=vopt out=sigma_low estimator=sigma reset collapse in=ngc3351_sincsinc_trim_submask3.sdf low=925 high=1180 axis=vopt out=sigma_high estimator=sigma reset block ngc3351_sincsinc_trim_submask3_20kms.sdf ngc3351_sincsinc_trim_submask3_20kms_bin5.sdf axes="[2,3]" box="[1,5]" estimator=mean block ngc3351_sincsinc_trim_submask3_20kms.sdf ngc3351_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=ngc3351_sincsinc_trim_submask3_20kms_bin5.sdf confirm=false reset cdiv sigma_low_3d 6.85565 sigma_low_20kms div ngc3351_sincsinc_trim_submask3_20kms_bin5.sdf sigma_low_20kms.sdf ngc3351_sincsinc_trim_submask3_20kms_bin5_SN.sdf div ngc3351_sincsinc_trim_submask3_20kms_bin9.sdf sigma_low_20kms.sdf ngc3351_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/ngc3351_sincsinc_trim_submask3_rembsl_findclump20.sdf . cp ../Moment_sincsinc/ngc3351_sincsinc_trim_submask3_totint20.sdf . add sigma_high sigma_low out=sigma_sum cdiv sigma_sum.sdf 2 sigma_avg collapse in= ngc3351_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 ngc3351_totint20_noise div ngc3351_sincsinc_trim_submask3_totint20.sdf ngc3351_totint20_noise ngc3351_totint20_SN (contoured SN maps then made using gaia) ------------------------------------------------------------------------------- TRIM OUT NOISE FROM TOTINT20 MAP: *Try trimming regions with SN < 2.0: thresh ngc3351_totint20_SN.sdf thrlo=2 newlo=bad thrhi=500 newhi=bad out=ngc3351_totint20_SN_thresh2 # There were 506 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc3351_totint20_SN_thresh2.sdf 0 ngc3351_zeroall_2 cadd ngc3351_zeroall_2 1 ngc3351_msk_2 mult ngc3351_msk_2.sdf ngc3351_sincsinc_trim_submask3_totint20.sdf ngc3351_totint20_noisetrim2 *Try trimming regions with SN < 1.5: thresh ngc3351_totint20_SN.sdf thrlo=1.5 newlo=bad thrhi=500 newhi=bad out=ngc3351_totint20_SN_thresh15 # There were 435 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc3351_totint20_SN_thresh15.sdf 0 ngc3351_zeroall_15 cadd ngc3351_zeroall_15.sdf 1 ngc3351_msk_15 mult ngc3351_msk_15.sdf ngc3351_sincsinc_trim_submask3_totint20.sdf ngc3351_totint20_noisetrim_15 ------------------------------------------------------------------------------- MAKE TOTINT30 NOISE and SN MAPS: cp ../Moment_sincsinc/ngc3351_sincsinc_trim_submask3_rembsl_findclump30.sdf . cp ../Moment_sincsinc/ngc3351_sincsinc_trim_submask3_totint30.sdf . collapse in= ngc3351_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 ngc3351_totint30_noise div ngc3351_sincsinc_trim_submask3_totint30.sdf ngc3351_totint30_noise ngc3351_totint30_SN (contoured SN maps then made using gaia)