Zero-point shift of Gaia DR2 parallaxes
Measurements of parallaxes of 81 detached eclipsing binary stars in the Milky Way allowed for the determination of the global zero-point shift in the Gaia Data Release 2 (DR2) parallaxes.
Araucaria Blog
Postdoctoral position in the field of extragalactic distance scale
Applications are invited for one postdoctoral position at the Nicolaus Copernicus Astronomical Center (NCAC), in Warsaw, Poland, in the field of extragalactic distance scale.
New Araucaria member
We welcome in our group a new PhD student Mikołaj Kałuszyński.
Obituary notice
With great sadness we inform that the Araucaria’s member, Zbigniew Kołaczkowski, passed away on September 22, 2018.
The effect of metallicity on Cepheid period-luminosity relations
Metallicity is a vital parameter that impacts classical Cepheids’ luminosities. In all observed bands, metal-poor Cepheids in the SMC are intrinsically fainter than their more metal-rich counterparts in the LMC and MW.
Astrophysics of Cepheids in eclipsing binary systems
Based on new observations and improved modeling techniques, we have re-analyzed seven Cepheids in the Large Magellanic Cloud.
Sunset over the Atacama Desert
Before we start an observing night, twice a year we get to see this gem: a marvelous sunset captured from Observatory Cerro Murphy of the setting Sun, that illuminates four Unit Telescopes of Very...
LL Aqr – an eclipsing binary with a solar twin companion
We present analysis of eclipsing binary star LL Aqr which contains a solar twin component.
Peculiar W Vir type Cepheid mass determination
We present the results of a study of the type II Cepheid in the eclipsing binary system OGLE-LMC-T2CEP-098.
Araucaria Meeting 2017, Kraków, Poland
The Araucaria Meeting took place at the end of September 2017 in Crocow, Poland, and was attended by 23 people from 11 scientific institutions in six countries.