The TESS Faint Star Search: 1,617 TOIs from the TESS Primary Mission

Abstract

We present the detection of 1,617 new transiting planet candidates, identified in the Transiting Exoplanet Survey Satellite (TESS) full-frame images (FFIs) observed during the Primary Mission (Sectors 1 - 26). These candidates were initially detected by the Quick-Look Pipeline (QLP), which extracts FFI lightcurves for and searches all stars brighter than TESS magnitude T = 13.5 mag in each sector. However, QLP heavily relies on manual inspection for the identification of planet candidates, limiting vetting efforts to planet-hosting stars brighter than T = 10.5 mag and leaving millions of potential transit signals un-vetted. We describe an independent vetting pipeline applied to QLP transit search results, incorporating both automated vetting tests and manual inspection to identify promising planet candidates around these fainter stars. The new candidates discovered by this ongoing project will allow TESS to significantly improve the statistical power of demographics studies of giant, close-in exoplanets.

8 pages, 3 figures; submitted to AAS journals

References in corpus (4)

• Array Programming with NumPy
• Identifying Exoplanets with Deep Learning III: Automated Triage and Vetting of TESS Candidates
• Discovery and Vetting of Exoplanets I: Benchmarking K2 Vetting Tools
• A search for transiting planets around FGKM dwarfs and sub-giants in the TESS Full Frame Images of the Southern ecliptic hemisphere

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• TOI-3235 b: a transiting giant planet around an M4 dwarf star
• Dynamical Evolution of Closely Packed Multiple Planetary Systems Subject to Atmospheric Mass-Loss