Galaxy Shape comparison among different measurement methods.

LSSTDESC / BremertonRoundTrip

A hack project for the Bremerton meeting

MIT License

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Galaxy Shape comparison among different measurement methods. #16

Open WentaoLuo opened 8 years ago

WentaoLuo commented 8 years ago

figure_15

I have been working on shape measurements for weak lensing. The above shows the comparison among re-Gauss(x), BJ(+) and my new try(red dots). I have an older pipeline based on BJ02 and Hirata & Seljak 2003, I did not add that one. Just want to see if the new method works or not.

The psf is Kolgomorov with FWHM=0.7 and e1=0.04,e2=0.03. Galaxy catalog is from fastcat, with simply exponential profile. pixel size -0.2"/pix

I will do some further test.

WentaoLuo commented 8 years ago

I hope I could present this method by next LSST-DESC meeting from SLAC.