OGLE Galactic bulge and disk delta Scuti

Together with the recently published OGLE collection of delta Sct variables in the inner Galactic bulge, our sample consists of 24488 objects distributed along the MilkyWay plane, over galactic longitudes ranging from about -170{deg} to +60{deg}. The collection data include the I- and V-band time-series photometry collected since 1997 during the OGLE-II, OGLE-III, and OGLE-IV surveys.

We show the on-sky distribution of delta Sct stars in the Galactic bulge and disk, discuss their period, luminosity and amplitude distributions, present Petersen diagram for multimode pulsators, distinguish 34 delta Sct stars in eclipsing and ellipsoidal binary systems, and list probable members of globular clusters.