Changes between Version 5 and Version 6 of StarGalaxySeparation

Timestamp:

Oct 21, 2010, 6:05:40 AM (16 years ago)

Author:

eugene

Comment:

--

StarGalaxySeparation

@@ -9 +9 @@
 The IPP performs several different extended source (ie, galaxy) analyses.  Not all objects necessarily have the full set of measurements applied.  The different types of extended source measurements are listed below, in order of the CPU requirements:
 
-* PSF and Kron magnitudes : all sources in all images (single exposures or stacks) have PSF and Kron magnitudes measured.  
-* moments (2nd, 3rd, 4th) : all sources in all images (single exposures or stacks) have moments measured.  
-* Circular radial apertures : all sources in the yearly stacks have the PSF-matched circular radial aperture photometry measured.  Currently, we expect this to be performed for 2 target PSF sizes (1.2 & 1.6 arcsec?). 
-* Petrosian and Elliptical apertures : these are measured only for the yearly stacks, and for some subset to be defined, limited potentially by S/N and by galactic latitude constraints.
-* non-linear fits (Exponential, deVaucouleur, Sersic) : these are measured only for the yearly stacks, and for some subset to be defined, limited potentially by S/N and by galactic latitude constraints (need not match the Petrosian & Elliptical apertures).
+ * PSF and Kron magnitudes : all sources in all images (single exposures or stacks) have PSF and Kron magnitudes measured.  
+ * moments (2nd, 3rd, 4th) : all sources in all images (single exposures or stacks) have moments measured.  
+ * Circular radial apertures : all sources in the yearly stacks have the PSF-matched circular radial aperture photometry measured.  Currently, we expect this to be performed for 2 target PSF sizes (1.2 & 1.6 arcsec?). 
+ * Petrosian and Elliptical apertures : these are measured only for the yearly stacks, and for some subset to be defined, limited potentially by S/N and by galactic latitude constraints.
+ * non-linear fits (Exponential, deVaucouleur, Sersic) : these are measured only for the yearly stacks, and for some subset to be defined, limited potentially by S/N and by galactic latitude constraints (need not match the Petrosian & Elliptical apertures).
 
 We have used GPC1 observations of Stripe 82 to define the PS1 Star / Galaxy / CR separation.  The advantage of this region is that SDSS data exists for both single pass and deep stack analysis.