Today we are celebrating with our colleague Darek Graczyk, who obtained the title of doctor habilitated! Habilitation is a recognition of the contribution that Darek brought to astronomy – over the years he published...
An international team of astronomers under the leadership of prof. Grzegorz Pietrzyński from Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences measured the distance to the Large Magellanic Cloud (LMC) with an...
We present analysis of eclipsing binary star LL Aqr which contains a solar twin component.
Synthetic simulation of low-mass binary stars shows that 5% of them can cross the instability strip as Binary Evolution Pulsators (BEPs).
Binary system OGLE-LMC-CEP-1718 composed of two classical FO Cepheids confirmed spectroscopically and analized.
LMC distance determined with the accuracy of 2% using binary systems composed of giants.
SMC distance determined with the accuracy of 3% using binary systems composed of giants.
First determination of the projection factor from the analysis of a eclipsing binary system OGLE-LMC-CEP-0227.
New type of RR Lyrae-like variable identified in a binary system.
Very precise mass determination of the Cepheid OGLE-LMC-CEP-1812 in an eclipsing binary system.