Multiplicity Completeness in K2 Planet Catalogs
Abstract
The search for candidate habitable planets will be led, in the short term, by searches for transitting planets around low mass stars. The Kepler mission provided a detailed proof of principle for such studies. The Kepler follow-on mission, K2, expanded on this philosophy with data around more low-mass stars, but with a shorter time baseline, and provided a precursor to the NASA TESS mission that will provide a treasure trove of data around very bright stars and which will enable high resolution investigations of candidate systems around bright stars. Our previous investigations, on the Kepler database, have shown that planetary multiplicity can have an important effect on the completeness of the planetary catalogue, in the sense that the presence of high signal-to-noise detections in the light curve can reduce the detectability of planets that would otherwise have been found. Such effects are the result of a complex interaction between windowing effects and lightcurve fitting to account for stellar variability. The shorter baselines of K2 and TESS campaigns will make similar effects even more pernicious. Our proposed work would extend the completeness as a function of multiplicity assessement performed for Kepler to the catalogue of planets detected in the K2 campaign. We anticipate that one important implication of this work is that it will allow us to estimate the effects of multiplicity on the search for habitable planets around M dwarfs.
- Publication:
-
NASA ADAP Proposal
- Pub Date:
- October 2018
- Bibcode:
- 2018adap.prop...60H