Candidates for non-pulsating stars in the Cepheid instability strip
Surprising discovery of non-pulsating stars residing inside the instability of LMC Cepheids is further examined with the help of Strömgren photometry.
Author: araucaria_admin
New PhD student in Warsaw, Poland
We are happy to welcome Gonzalo Rojas – a new PhD student in Nicolaus Copernicus Astronomical Center, Warsaw, Poland.
New post-doc fellow in Concepción, Chile
We are happy to welcome a new post-doc fellow in Universidad de Concepción, Chile.
Habilitation title for Darek Graczyk
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...
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%.
Araucaria Meeting 2019, Concepción, Chile
The Araucaria Meeting is a biennial event that brings together 24 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. The successful applicant will work with Prof. Grzegorz Pietrzyński on...
Obituary notice
With great sadness we inform that the Araucaria’s member, Zbigniew Kołaczkowski, passed away on September 22, 2018. Zbigniew joined the Araucaria Project in 2017, bringing to the team his knowledge of variable stars and...
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.