#--------------------------------------------------- # NGC4569, Raster, Night 2, First February 2008 run #--------------------------------------------------- ------------------------------------------------------------------------------- INITIAL REDUCTION USING NEAREST SPREAD: # Full cube for observations on 20080212 + 20080213 makecube in="a2008021*_flagspike.sdf" autogrid=true crota=337 pixsize=7.2761 sparse=false spread='nearest' specbounds=\"-575.0 230.0\" out=ngc4569_combined reset # Projection parameters used: # CRPIX1 = 25.8653061240911 # CRPIX2 = 37.8653061240911 # CRVAL1 = 189.2075 ( RA = 12:36:49.8 ) # CRVAL2 = 13.1627777777778 ( Dec = 13:09:46 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 337 # # Output cube pixel bounds: ( -24:26, -35:38, -953:951 ) # Output cube WCS bounds: # Right ascension: 12:36:31.0 -> 12:37:08.8 # Declination: 13:04:30 -> 13:15:11 # Optical velocity (USB): -575.3134 -> 230.236 km/s mfittrend ngc4569_combined ranges=\"-575 -370 0 230\" order=3 axis=3 out=ngc4569_combined_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -574.8917 : -370.2145 km/s (-953 : -468) # -0.2422597 : 229.812 km/s (407 : 950) sub ngc4569_combined ngc4569_combined_base3 ngc4569_combined_sub3 compave ngc4569_combined_sub3 ngc4569_combined_sub3_20kms compress="[1,1,47]" stats 'ngc4569_combined_sub3_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0231924 stats 'ngc4569_combined_sub3_20kms(~25,~25,-575.0:-370.0)' | grep Standard # Standard deviation : 0.0185506 stats 'ngc4569_combined_sub3_20kms(~25,~25,0.0:230.0)' | grep Standard # Standard deviation : 0.0157601 # Target reached, small strong source in centre with other structure surounding. ------------------------------------------------------------------------------- NOW SINCSINC: makecube in="a*" autogrid=true crota=337 pixsize=7.2761 sparse=false spread='sincsinc' params='[1,2]' specbounds=\"-575.0 230.0\" out=ngc4569_sincsinc reset # Projection parameters used: # CRPIX1 = 25.8653061240911 # CRPIX2 = 37.8653061240911 # CRVAL1 = 189.2075 ( RA = 12:36:49.8 ) # CRVAL2 = 13.1627777777778 ( Dec = 13:09:46 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 337 # # Output cube pixel bounds: ( -24:26, -35:38, -953:951 ) # Output cube WCS bounds: # Right ascension: 12:36:31.0 -> 12:37:08.8 # Declination: 13:04:30 -> 13:15:11 # Optical velocity (USB): -575.3134 -> 230.236 km/s # # # WARNING: Cannot create output Tsys values. chpix in=ngc4569_sincsinc out=ngc4569_sincsinc_spikebad section=\":,:,-440:-430\" newval=bad ndfcopy in=ngc4569_sincsinc_spikebad'(-7:11,-19:30,)' out=ngc4569_sincsinc_trim mfittrend ngc4569_sincsinc_trim ranges=\"-575 -370 0 230\" order=3 axis=3 out=ngc4569_sincsinc_trim_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -574.8917 : -370.2145 km/s (-953 : -468) # -0.2422597 : 229.812 km/s (407 : 950) sub ngc4569_sincsinc_trim ngc4569_sincsinc_trim_base3 ngc4569_sincsinc_trim_sub3 compave ngc4569_sincsinc_trim_sub3 ngc4569_sincsinc_trim_sub3_20kms compress="[1,1,47]" stats 'ngc4569_sincsinc_trim_sub3_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0211274 stats 'ngc4569_sincsinc_trim_sub3_20kms(~25,~25,-575.0:-370.0)' | grep Standard # Standard deviation : 0.0157487 stats 'ngc4569_sincsinc_trim_sub3_20kms(~25,~25,0.0:230.0)' | grep Standard # Standard deviation : 0.0133355 ------------------------------------------------------------------------------- BASELINE MASK PRODUCTION: # First produce a smoothed cube to identify the line and make masks with mfittrend block in=ngc4569_sincsinc_trim out=ngc4569_sincsinc_trim_vsmooth 'axes=[1,3] box=[1,25]' block in=ngc4569_sincsinc_trim_vsmooth out=ngc4569_sincsinc_trim_smooth 'axes=[1,2] box=[3,3]' mfittrend in=ngc4569_sincsinc_trim_smooth axis=3 order=3 out=ngc4569_sincsinc_trim_smooth_base3 auto mask=ngc4569_sincsinc_trim_smooth_basemsk3 method=single variance=false subtract=false 'clip=[2,3]' mfittrend in=ngc4569_sincsinc_trim_smooth axis=3 order=3 out=ngc4569_sincsinc_trim_smooth_base3g auto mask=ngc4569_sincsinc_trim_smooth_basemsk3g method=global variance=false subtract=false 'clip=[2,2.5,3]' add ngc4569_sincsinc_trim_smooth_basemsk3 ngc4569_sincsinc_trim_smooth_basemsk3g ngc4569_trim_basemask0 chpix in=ngc4569_trim_basemask0 out=ngc4569_trim_basemask0_end1 section=\":,:,-954:-468\" newval=0 chpix in=ngc4569_trim_basemask0_end1 out=ngc4569_trim_basemask0_end2 section=\":,:,407:951\" newval=0 cadd ngc4569_trim_basemask0_end2 1 ngc4569_trim_basemask1 mult ngc4569_sincsinc_trim ngc4569_trim_basemask1 ngc4569_sincsinc_trim_masked mfittrend ngc4569_sincsinc_trim_masked ranges=\"-575 230\" order=3 axis=3 out=ngc4569_sincsinc_trim_masked_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # -574.8917 : 229.812 km/s (-953 : 950) sub ngc4569_sincsinc_trim ngc4569_sincsinc_trim_masked_base3 ngc4569_sincsinc_trim_submask3 compave ngc4569_sincsinc_trim_submask3 ngc4569_sincsinc_trim_submask3_20kms compress="[1,1,47]" stats 'ngc4569_sincsinc_trim_submask3_20kms(~25,~25,:)' | grep Standard # Standard deviation : 0.0173656 stats 'ngc4569_sincsinc_trim_submask3_20kms(~25,~25,-575.0:-370.0)' | grep Standard # Standard deviation : 0.0170133 stats 'ngc4569_sincsinc_trim_submask3_20kms(~25,~25,0.0:230.0)' | grep Standard # Standard deviation : 0.0148237 ------------------------------------------------------------------------------- CREATE MOMENT MAPS: mkdir Moment_sincsinc cp ngc4569_sincsinc_trim_submask3.sdf Moment_sincsinc/ngc4569_sincsinc_trim_submask3_rembsl.sdf cp ngc4569_trim_basemask1.sdf Moment_sincsinc/ngc4569_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 = "ngc4569_sincsinc_trim_submask3" set vrange = "low=-370 high=0" # 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(-3:7,-10:21,-895:893): 0.00891854272288125 Rotate intvel maps: rotate ngc4569_sincsinc_trim_submask3_intvel20 ngc4569_sincsinc_trim_submask3_intvel20_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel25 ngc4569_sincsinc_trim_submask3_intvel25_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel30 ngc4569_sincsinc_trim_submask3_intvel30_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel35 ngc4569_sincsinc_trim_submask3_intvel35_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel40 ngc4569_sincsinc_trim_submask3_intvel40_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel45 ngc4569_sincsinc_trim_submask3_intvel45_rot angle=! rotate ngc4569_sincsinc_trim_submask3_intvel50 ngc4569_sincsinc_trim_submask3_intvel50_rot angle=! (contoured totint maps and velocity maps then made using gaia) ------------------------------------------------------------------------------- MAKE CUBES DISPLAYING S/N RATIO: collapse in=ngc4569_sincsinc_trim_submask3.sdf low=-575 high=-370 axis=vopt out=sigma_low estimator=sigma reset collapse in=ngc4569_sincsinc_trim_submask3.sdf low=0 high=230 axis=vopt out=sigma_high estimator=sigma reset block ngc4569_sincsinc_trim_submask3_20kms.sdf ngc4569_sincsinc_trim_submask3_20kms_bin5.sdf axes="[2,3]" box="[1,5]" estimator=mean block ngc4569_sincsinc_trim_submask3_20kms.sdf ngc4569_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=ngc4569_sincsinc_trim_submask3_20kms_bin5.sdf confirm=false reset cdiv sigma_low_3d 6.85565 sigma_low_20kms div ngc4569_sincsinc_trim_submask3_20kms_bin5.sdf sigma_low_20kms.sdf ngc4569_sincsinc_trim_submask3_20kms_bin5_SN.sdf div ngc4569_sincsinc_trim_submask3_20kms_bin9.sdf sigma_low_20kms.sdf ngc4569_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/ngc4569_sincsinc_trim_submask3_rembsl_findclump20.sdf . cp ../Moment_sincsinc/ngc4569_sincsinc_trim_submask3_totint20.sdf . add sigma_high sigma_low out=sigma_sum cdiv sigma_sum.sdf 2 sigma_avg collapse in= ngc4569_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 ngc4569_totint20_noise div ngc4569_sincsinc_trim_submask3_totint20.sdf ngc4569_totint20_noise ngc4569_totint20_SN (contoured SN maps then made using gaia) ------------------------------------------------------------------------------- TRIM OUT NOISE FROM TOTINT20 MAP: *Try trimming regions with SN < 2.0: thresh ngc4569_totint20_SN.sdf thrlo=2 newlo=bad thrhi=500 newhi=bad out=ngc4569_totint20_SN_thresh2 # There were 319 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc4569_totint20_SN_thresh2.sdf 0 ngc4569_zeroall_2 cadd ngc4569_zeroall_2 1 ngc4569_msk_2 mult ngc4569_msk_2.sdf ngc4569_sincsinc_trim_submask3_totint20.sdf ngc4569_totint20_noisetrim2 *Try trimming regions with SN < 1.5: thresh ngc4569_totint20_SN.sdf thrlo=1.5 newlo=bad thrhi=500 newhi=bad out=ngc4569_totint20_SN_thresh15 # There were 281 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc4569_totint20_SN_thresh15.sdf 0 ngc4569_zeroall_15 cadd ngc4569_zeroall_15.sdf 1 ngc4569_msk_15 mult ngc4569_msk_15.sdf ngc4569_sincsinc_trim_submask3_totint20.sdf ngc4569_totint20_noisetrim_15 ------------------------------------------------------------------------------- MAKE TOTINT30 NOISE and SN MAPS: cp ../Moment_sincsinc/ngc4569_sincsinc_trim_submask3_rembsl_findclump30.sdf . cp ../Moment_sincsinc/ngc4569_sincsinc_trim_submask3_totint30.sdf . collapse in= ngc4569_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 ngc4569_totint30_noise div ngc4569_sincsinc_trim_submask3_totint30.sdf ngc4569_totint30_noise ngc4569_totint30_SN (contoured SN maps then made using gaia)