The flaring TESS Objects of Interest: flare rates for all two-minute cadence TESS planet candidates

ABSTRACT Although more than 5000 TESS Objects of Interest have been catalogued, no comprehensive survey the flare rates their host stars exists. We perform first all 2250 non-retired TOIs with 2-min cadence light curves to measure or place upper limits on rates. find 93 candidates orbit and frequency distributions. Across sample, ≤1.5R⊕ frequently do 1.5 < R< 2.75R⊕, 2.75 4R⊕, R≥ 4R⊕. sort TOI by rate/upper limit, stellar mass, distance create a ranking metric (FRM) determine suitability for follow-up. The FRM each is then checked against expected signal-to-noise atmospheric features in transmission spectroscopy locate most promising targets. 1/4 terrestrial M-dwarf planets amenable stars. However, none hosts are currently flaring at sufficient levels >99.9 per cent ozone depletion. give rate star 700 d explore incident young such as DS Tuc Ab.