Transit least-squares survey

In its long-duration observation phase, the PLATO satellite will observe two non-overlapping fields for a total of 4 yr. The exact duration each pointing be determined 2 yr before launch. Previous estimates PLATO's yield Earth-sized planets in habitable zones (HZs) around solar-type stars ranged between 6 and 280. We use Solar-like Light curve Simulator (PSLS) to simulate light curves with transiting bright (m_V > 11) Sun-like at cadence 25 s, roughly representative >15,000 targets high-priority P1 sample (mostly F5-K7 dwarfs sub-dwarfs). Our study includes generated from synchronous observations 6, 12, 18, 24 12 cm aperture cameras over both 3 continuous observations. Automated detrending is done Wotan software post-detrending transit detection performed Transit Least Squares (TLS) algorithm. scale true positive rates (TPRs) expected number modern exoplanet occurrence predict 0.5 R_E <= R_p 1.5 HZs dwarf stars. For (2 + yr) phase strategy we 11-34 detections, (3 1 8-25 discoveries. effects stellar variability on shallow transits Earth-like illustrates that our planet yield, which derive using photometrically quiet star like Sun, must seen as upper limits. conclusion, about dozen mean major contribution this yet poorly sampled part parameter space planets.