IPP Software Navigation Tools IPP Links Communication Pan-STARRS Links

Changeset 25032


Ignore:
Timestamp:
Aug 10, 2009, 3:42:05 AM (17 years ago)
Author:
eugene
Message:

adding functions to support more robust petrosian analysis (names may need modification)

Location:
branches/eam_branches/20090715/psphot
Files:
8 added
1 edited

Legend:

Unmodified
Added
Removed

  • branches/eam_branches/20090715/psphot/doc/notes.20090523.txt

    r25022 r25032  
     1
     220090809 : more on extended sources:
     3
     4 my algorithm for getting the petrosian radii and fluxes is:
     5
     6  * measure radial profile by interpolation to specific locations along the radial line
     7    (at low radii, this gives much more accurate results; at high radii, we may need to
     8    average a group of pixels -- say, for 15 deg separations, choose a box that is
     9    < 5 degree in width -- this is > 1 pixel at a distance of 12 pixels.
     10
     11    psphotRadialProfilesByAngle
     12
     13  * find intersection of profile with isophot
     14
     15    psphotRadiusFromProfile -> r50(theta)
     16
     17  * generate r50x, r50y and fit to ellipse
     18
     19    psphotEllipticalContour
     20
     21  * generate elliptical profile
     22
     23    psphotEllipticalProfile
     24
     25  * convert to \alpha r_i < r < \beta r_i bins
     26
     27    psphotPetrosianRadialBins
     28   
    129
    23020090725 : extended source radial profiles
Note: See TracChangeset for help on using the changeset viewer.