Lonely No More?: A Search in TESS Data for Additional Planets in Systems with Hot Jupiters
Abstract
We present first results from a blind, uniform search for additional planets around all stars with confirmed hot Jupiters observed by the Transiting Exoplanet Survey Satellite (TESS) in the Southern Hemisphere. This search comprises 174 total stellar systems with hot Jupiters, which we define as planets > 4 Earth radii with an orbital period of < 10 days, most of which were confirmed prior to TESS. The recently developed Transit Least Squares (TLS) algorithm was utilized to detect transits that did not meet the threshold crossing event (TCE) criteria of the automated TESS search pipeline. TLS is optimized to find small, rocky planets in close orbits around their host stars using an analytical transit shape at a higher efficiency than other methods, providing for a more robust planet search. Candidates found in our search are being vetted using the Discovery and Vetting of Exoplanets (DAVE) and Validation of Exoplanet Signals using a Probabilistic Algorithm (VESPA) tools.
- Publication:
-
American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23517408H