[astro-ph/0502243] Dark Energy Constraints from the CTIO Len
Posted: February 17 2005
I was interested to find out some details of how the authors select stars to use for PSF correction. This paper cites astro-ph/0210604 for details, however that paper merely cites (in step 6) a forthcoming "Jarvis 2003" paper for details, which doesn't seem to exist. The paper discussing their nice PCA method for PSF interpolation (astro-ph/0412234) doesn't seem to give an details on star selection either. Is there a reference I've missed?
I'm particularly interested if they have an automated way for selecting stars in the presence of the anisotropic PSF (as they discuss briefly in astro-ph/0210604), and how to avoid diffraction spikes and leakage along CCD readout columns giving spurious ellipticity correlations. Any references appreciated.
Thanks.
I'm particularly interested if they have an automated way for selecting stars in the presence of the anisotropic PSF (as they discuss briefly in astro-ph/0210604), and how to avoid diffraction spikes and leakage along CCD readout columns giving spurious ellipticity correlations. Any references appreciated.
Thanks.