Changes between Version 1 and Version 2 of PSPhot_simulation_1

Timestamp:

Feb 24, 2009, 4:31:33 PM (17 years ago)

Author:

trac

Comment:

--

PSPhot_simulation_1

@@ -1 +1 @@
 I am able to reproduce the PSPhot-SDSS bias using simulated data.  I generate a collection of fake stars, distributed with a luminosity function: logN ~ alpha*mag.  I've set alpha to 0.3 to enhance the number of bright sources in this example.  I smooth the image with a PSF, then add noise (gain = 1).  I then run psphot on these.  For the following plots, I am using a Gaussian PSF, and I set the sky level to the values 10, 30, 100, 300, 1000, 3000 for the sequence of runs.  I use the same input star fluxes for each run.  I am running psphot with no aperture correction, a Gaussian PSF model, and only using the 'ensemble' psf fits (no non-linear fits).
 
-[[Image(htdocs:/images/sky.00.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.00.gauss.gauss.ens.dmag.png)]]
 
-[[Image(htdocs:/images/sky.01.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.01.gauss.gauss.ens.dmag.png)]]
 
-[[Image(htdocs:/images/sky.02.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.02.gauss.gauss.ens.dmag.png)]]
 
-[[Image(htdocs:/images/sky.03.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.03.gauss.gauss.ens.dmag.png)]]
 
-[[Image(htdocs:/images/sky.04.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.04.gauss.gauss.ens.dmag.png)]]
 
-[[Image(htdocs:/images/sky.05.gauss.gauss.ens.dmag.png)]]
+[[Image(htdocs:/images/Sky.05.gauss.gauss.ens.dmag.png)]]