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Candidates for Transiting Planets in OGLE-IV Galactic Bulge Fields
M. J. Mróz, P. Pietrukowicz, R. Poleski +13
We present results of a search for transiting exoplanets in 10-yr long photometry with thousands of epochs taken in the direction of the Galactic bulge. This photometry was collect…
The OGLE Collection of Variable Stars. Over 15 000 Delta Scuti Stars in the Large Magellanic Cloud
I. Soszyński, P. Pietrukowicz, A. Udalski +12
We present the OGLE collection of delta Scuti stars in the Large Magellanic Cloud and in its foreground. Our dataset encompasses a total of 15 256 objects, constituting the largest…
Blue Large-Amplitude Pulsators and Other Short-Period Variable Stars in the OGLE-IV Galactic Disk Fields
J. Borowicz, P. Pietrukowicz, P. Mróz +12
Blue Large-Amplitude Pulsators (BLAPs) form a mysterious class of variable stars with typical periods of tens of minutes and amplitudes above 0.1 mag. In this work, we present resu…
GRB 201015A and the nature of low-luminosity soft gamma-ray bursts
M. Patel, B. P. Gompertz, P. T. O'Brien +20
GRB 201015A is a peculiarly low luminosity, spectrally soft gamma-ray burst (GRB), with s (time interval of detection of 90\% of photons from the GRB), a…
The OGLE Collection of Variable Stars. Over 2600 Delta Scuti Stars in the Small Magellanic Cloud
I. Soszyński, A. Udalski, J. Skowron +11
We present the first-ever collection of delta Scuti stars found over the entire area of the Small Magellanic Cloud (SMC). The sample consists of 2810 variables of which over 2600 o…