I worked with Adrian Price-Whelan (Flatiron) this morning on an empirical noise model for SDSS-IV APOGEE radial-velocity data. We fit a mixture of quiet and noisy stars plus additive Gaussian noise to empirical radial-velocity data, and started to figure out how the noise must depend on temperature, metallicity, and signal-to-noise. It looks like we can learn the noise model! And thus be less dependent on the assumptions in the pipelines.
No comments:
Post a Comment