chroma: Chromatic effects for LSST weak lensing
Abstract
Chroma investigates biases originating from two chromatic effects in the atmosphere: differential chromatic refraction (DCR), and wavelength dependence of seeing. These biases arise when using the point spread function (PSF) measured with stars to estimate the shapes of galaxies with different spectral energy distributions (SEDs) than the stars.
- Publication:
-
Astrophysics Source Code Library
- Pub Date:
- April 2018
- Bibcode:
- 2018ascl.soft04007M
- Keywords:
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- Software