#-------------------------------------------- # NGC2841, Raster, Night 7, January 2008 run #-------------------------------------------- ------------------------------------------------------------------------------- INITIAL REDUCTION USING NEAREST SPREAD: makecube in="a20080113_000*_flagspike.sdf" autogrid=true crota=33 pixsize=7.2761 sparse=false spread='nearest' specbounds=\"250.0 1050.0\" out=ngc2841_prelim20080113_nobadpoint reset # Projection parameters used: # CRPIX1 = 24.1122449040413 # CRPIX2 = 32.4938775599003 # CRVAL1 = 140.510833333333 ( RA = 9:22:02.6 ) # CRVAL2 = 50.9763888888889 ( Dec = 50:58:35 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 33 # # Output cube pixel bounds: ( -22:24, -30:32, -942:940 ) # Output cube WCS bounds: # Right ascension: 9:21:34.5 -> 9:22:31.3 # Declination: 50:53:47 -> 51:03:18 # Optical velocity (USB): 249.7411 -> 1050.332 km/s # Very broad line, using 1st order fit only mfittrend ngc2841_prelim20080113_nobadpoint ranges=\"250 400 900 1050\" order=1 axis=3 out=ngc2841_prelim20080113_nobadpoint_base1 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 250.1651 : 399.925 km/s (-942 : -589) # 899.9223 : 1049.905 km/s (587 : 939) sub ngc2841_prelim20080113_nobadpoint ngc2841_prelim20080113_nobadpoint_base1 ngc2841_prelim20080113_nobadpoint_sub1 compave ngc2841_prelim20080113_nobadpoint_sub1 ngc2841_prelim20080113_nobadpoint_sub1_20kms compress="[1,1,47]" stats 'ngc2841_prelim20080113_nobadpoint_sub1_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.0185458 stats 'ngc2841_prelim20080113_nobadpoint_sub1_20kms(~21,~21,250.0:400.0)' | grep Standard # Standard deviation : 0.0169446 stats 'ngc2841_prelim20080113_nobadpoint_sub1_20kms(~21,~21,900.0:1050.0)' | grep Standard # Standard deviation : 0.0153332 # Still below target rms, but this map still needs more flagging (receptor 12?) ------------------------------------------------------------------------------- NOW SINCSINC: makecube in="a*_flagspike.sdf" autogrid=true crota=33 pixsize=7.2761 sparse=false spread='sincsinc' params='[1,2]' specbounds=\"250.0 1050.0\" out=ngc2841_sincsinc reset # Projection parameters used: # CRPIX1 = 24.1122449040413 # CRPIX2 = 32.4938775599003 # CRVAL1 = 140.510833333333 ( RA = 9:22:02.6 ) # CRVAL2 = 50.9763888888889 ( Dec = 50:58:35 ) # CDELT1 = -0.00202113893296984 ( -7.3 arcsec ) # CDELT2 = 0.00202113893296984 ( 7.3 arcsec ) # CROTA2 = 33 # Output cube pixel bounds: ( -22:24, -30:32, -942:940 ) # Output cube WCS bounds: # Right ascension: 9:21:34.5 -> 9:22:31.3 # Declination: 50:53:47 -> 51:03:18 # Optical velocity (USB): 249.7411 -> 1050.332 km/s # WARNING: Cannot create output Tsys values. chpix in=ngc2841_sincsinc out=ngc2841_sincsinc_spikebad section=\":,:,-448:-436\" newval=bad ndfcopy in=ngc2841_sincsinc_spikebad'(-13:11,-15:21,)' out=ngc2841_sincsinc_trim mfittrend ngc2841_sincsinc_trim ranges=\"250 400 900 1050\" order=1 axis=3 out=ngc2841_sincsinc_trim_base1 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 250.1651 : 399.925 km/s (-942 : -589) # 899.9223 : 1049.905 km/s (587 : 939) sub ngc2841_sincsinc_trim ngc2841_sincsinc_trim_base1 ngc2841_sincsinc_trim_sub1 compave ngc2841_sincsinc_trim_sub1 ngc2841_sincsinc_trim_sub1_20kms compress="[1,1,47]" stats 'ngc2841_sincsinc_trim_sub1_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.016579 stats 'ngc2841_sincsinc_trim_sub1_20kms(~21,~21,250.0:400.0)' | grep Standard # Standard deviation : 0.0150524 stats 'ngc2841_sincsinc_trim_sub1_20kms(~21,~21,900.0:1050.0)' | grep Standard # Standard deviation : 0.0136022 ------------------------------------------------------------------------------- BASELINE MASK PRODUCTION: # First produce a smoothed cube to identify the line and make masks with mfittrend block in=ngc2841_sincsinc_trim out=ngc2841_sincsinc_trim_vsmooth 'axes=[1,3] box=[1,25]' block in=ngc2841_sincsinc_trim_vsmooth out=ngc2841_sincsinc_trim_smooth 'axes=[1,2] box=[3,3]' mfittrend in=ngc2841_sincsinc_trim_smooth axis=3 order=1 out=ngc2841_sincsinc_trim_smooth_base1 auto mask=ngc2841_sincsinc_trim_smooth_basemsk1 method=single variance=false subtract=false 'clip=[2,3]' mfittrend in=ngc2841_sincsinc_trim_smooth axis=3 order=1 out=ngc2841_sincsinc_trim_smooth_base1g auto mask=ngc2841_sincsinc_trim_smooth_basemsk1g method=global variance=false subtract=false 'clip=[2,2.5,3]' add ngc2841_sincsinc_trim_smooth_basemsk1 ngc2841_sincsinc_trim_smooth_basemsk1g ngc2841_trim_basemask0 chpix in=ngc2841_trim_basemask0 out=ngc2841_trim_basemask0_end1 section=\":,:,-942:-589\" newval=0 chpix in=ngc2841_trim_basemask0_end1 out=ngc2841_trim_basemask0_end2 section=\":,:,587:939\" newval=0 cadd ngc2841_trim_basemask0_end2 1 ngc2841_trim_basemask1 mult ngc2841_sincsinc_trim ngc2841_trim_basemask1 ngc2841_sincsinc_trim_masked mfittrend ngc2841_sincsinc_trim_masked ranges=\"390 1180\" order=3 axis=3 out=ngc2841_sincsinc_trim_masked_base3 # Fitting NDF Axis 3, using ranges in current co-ordinate Frame (pixels): # 389.7383 : 1050.332 km/s (-613 : 940) sub ngc2841_sincsinc_trim ngc2841_sincsinc_trim_masked_base3 ngc2841_sincsinc_trim_submask3 compave ngc2841_sincsinc_trim_submask3 ngc2841_sincsinc_trim_submask3_20kms compress="[1,1,47]" stats 'ngc2841_sincsinc_trim_submask3_20kms(~21,~21,:)' | grep Standard # Standard deviation : 0.0243383 stats 'ngc2841_sincsinc_trim_submask3_20kms(~21,~21,250.0:400.0)' | grep Standard # Standard deviation : 0.0498581 stats 'ngc2841_sincsinc_trim_submask3_20kms(~21,~21,900.0:1050.0)' | grep Standard # Standard deviation : 0.0122686 ------------------------------------------------------------------------------- CREATE MOMENT MAPS: mkdir Moment_sincsinc cp ngc2841_sincsinc_trim_submask3.sdf Moment_sincsinc/ngc2841_sincsinc_trim_submask3_rembsl.sdf cp ngc2841_trim_basemask1.sdf Moment_sincsinc/ngc2841_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 = "ngc2841_sincsinc_trim_submask3" set vrange = "low=400 high=900" # 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(-8:6,-8:14,-885:883): 0.00957355118489009 Rotate intvel maps: rotate ngc2841_sincsinc_trim_submask3_intvel20 ngc2841_sincsinc_trim_submask3_intvel20_rot angle=! rotate ngc2841_sincsinc_trim_submask3_intvel25 ngc2841_sincsinc_trim_submask3_intvel25_rot angle=! (contoured totint maps and velocity maps then made using gaia) ------------------------------------------------------------------------------- MAKE CUBES DISPLAYING S/N RATIO: collapse in=ngc2841_sincsinc_trim_submask3.sdf low=250 high=400 axis=vopt out=sigma_low estimator=sigma reset collapse in=ngc2841_sincsinc_trim_submask3.sdf low=900 high=1050 axis=vopt out=sigma_high estimator=sigma reset block ngc2841_sincsinc_trim_submask3_20kms.sdf ngc2841_sincsinc_trim_submask3_20kms_bin5.sdf axes="[2,3]" box="[1,5]" estimator=mean block ngc2841_sincsinc_trim_submask3_20kms.sdf ngc2841_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=ngc2841_sincsinc_trim_submask3_20kms_bin5.sdf confirm=false reset cdiv sigma_low_3d 6.85565 sigma_low_20kms div ngc2841_sincsinc_trim_submask3_20kms_bin5.sdf sigma_low_20kms.sdf ngc2841_sincsinc_trim_submask3_20kms_bin5_SN.sdf div ngc2841_sincsinc_trim_submask3_20kms_bin9.sdf sigma_low_20kms.sdf ngc2841_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/ngc2841_sincsinc_trim_submask3_rembsl_findclump20.sdf . cp ../Moment_sincsinc/ngc2841_sincsinc_trim_submask3_totint20.sdf . add sigma_high sigma_low out=sigma_sum cdiv sigma_sum.sdf 2 sigma_avg collapse in= ngc2841_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 ngc2841_totint20_noise div ngc2841_sincsinc_trim_submask3_totint20.sdf ngc2841_totint20_noise ngc2841_totint20_SN (contoured SN maps then made using gaia) ------------------------------------------------------------------------------- **TRIM OUT NOISE FROM TOTINT20 MAP: *Try trimming regions with SN < 2.0: thresh ngc2841_totint20_SN.sdf thrlo=2 newlo=bad thrhi=500 newhi=bad out=ngc2841_totint20_SN_thresh2 # There were 106 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc2841_totint20_SN_thresh2.sdf 0 ngc2841_zeroall_2 cadd ngc2841_zeroall_2 1 ngc2841_msk_2 mult ngc2841_msk_2.sdf ngc2841_sincsinc_trim_submask3_totint20.sdf ngc2841_totint20_noisetrim2 *Try trimming regions with SN < 1.5: thresh ngc2841_totint20_SN.sdf thrlo=1.5 newlo=bad thrhi=500 newhi=bad out=ngc2841_totint20_SN_thresh15 # There were 96 elements changed in the DATA array below the threshold. # There were 0 elements changed in the DATA array above the threshold. cmult ngc2841_totint20_SN_thresh15.sdf 0 ngc2841_zeroall_15 cadd ngc2841_zeroall_15.sdf 1 ngc2841_msk_15 mult ngc2841_msk_15.sdf ngc2841_sincsinc_trim_submask3_totint20.sdf ngc2841_totint20_noisetrim_15 ------------------------------------------------------------------------------- MAKE TOTINT30 NOISE and SN MAPS: cp ../Moment_sincsinc/ngc2841_sincsinc_trim_submask3_rembsl_findclump25.sdf . cp ../Moment_sincsinc/ngc2841_sincsinc_trim_submask3_totint25.sdf . collapse in= ngc2841_sincsinc_trim_submask3_rembsl_findclump25.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 ngc2841_totint25_noise div ngc2841_sincsinc_trim_submask3_totint25.sdf ngc2841_totint25_noise ngc2841_totint25_SN (contoured SN maps then made using gaia)