Line-by-line RV Analysis
As radial velocity instruments approach the precision level necessary to detect an Earth-twin, stellar activity continues to induce significant noise and even planet-like signals. We thus developed a robust python package for extracting line-by-line radial velocity measurements; compared to standard techniques, the line-by-line approach offers considerable flexibility in the removal of stellar noise. We proceeded to explore how changes in line depth are correlated with stellar activity and developed an exciting model for detrending radial velocity measurements.
Sponsored by Caltech SURF program, with Andrew Howard