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...
Author: araucaria_admin
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.
Cerro Armazones sunset
Before we start an observing night, twice a year we get to see this gem: a marvelous sunset captured from Cerro Armazones of the setting Sun, that illuminates four Unit Telescopes of Very Large...
LL Aqr
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.
New member of the Araucaria Project
We are delighted to present to you our new member Zbigniew Kołaczkowski.
Araucaria Project on YouTube
Araucaria is on YouTube! And we start with this amazing timelapse from Cerro Tololo Observatory. Available in English and in Polish. Enjoy!
ERC grant
Professor Grzegorz Pietrzyński has received European Research Council Advanced grant of 2.4 million Euro for “A sub-percent distance scale from binaries and Cepheids” project.
Occurrence of BEPs
Synthetic simulation of low-mass binary stars shows that 5% of them can cross the instability strip as Binary Evolution Pulsators (BEPs).
Mass determination for classical FU Cepheid
Precise mass determination for a classical Cepheid in the double-lined, highly eccentric eclipsing binary system OGLE-LMC562.05.9009