Changes between Version 12 and Version 13 of pgc55
- Timestamp:
- Apr 27, 2016, 3:57:37 PM (10 years ago)
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pgc55
v12 v13 125 125 ---- 126 126 127 * left : factor = 2.0 i.e. expand by 100%128 * right : factor = 1.5 i.e. expand by 50% (original)127 * left-top : factor = 2.0 i.e. expand by 100% 128 * right-bottom: factor = 1.5 i.e. expand by 50% (original) 129 129 130 130 [[Image(pgc55_sdss_profile_factor2.jpg)]] [[Image(pgc55_sdss_profile.jpg)]] … … 135 135 Knowing the fact that estimated error for the background level is <~5%: 136 136 137 * left : Adding 1% to the estimated sky value137 * left-top: Adding 1% to the estimated sky value 138 138 {{{ 139 139 IDL code: sdss_radprof.pro … … 141 141 }}} 142 142 143 * right : original143 * right-bottom: original 144 144 145 145 [[Image(pgc55_sdss_profile_sky1percent.jpg)]] [[Image(pgc55_sdss_profile.jpg)]] … … 148 148 149 149 Final conclusion up to this point (for pgc55): If the profile looks good, we can claim that we've got to the precession of 5% in magnitude (e.g. 0.05 mag). 150 Slightly changing the position angle (7 degrees) and axial ratio does not change 0.05 mag precession. 150 151 151 152
