Even more accurate benchmark for cosmic distances
An international team of astronomers within the Araucaria Project measured the distance to the Large Magellanic Cloud (LMC) with an exceptional accuracy of 1%.
Author: araucaria_admin
Araucaria Meeting 2019, Concepción, Chile
The Araucaria Meeting is a biennial event that brings together astronomers from Poland, France, Italy, Germany, the USA, and Chile, who work on the calibration of the cosmic distance scale and related topics.
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.
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.
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.