New senior researcher in CAMK Warsaw, Poland
We are happy to welcome dr. Ricardo Salinas in Nicolaus Copernicus Astronomical Center, Warsaw, Poland.
Author: araucaria_admin
Projection factor and radii of nearby BL Her stars
Type II Cepheids might be an attractive alternative to classical Cepheids regarding the projection factor (p-factor), which is a crucial parameter in the Baade-Wesselink technique to determine the distance.
International Araucaria Meeting 2024, Paris, France
This year the extended Araucaria group met at the Observatoire de Paris, France, where the members presented their recent projects and discussed the future of the extragalactic distance scale.
Nine Cepheid-Cepheid binaries confirmed spectroscopically
Newly discovered nine binary systems consisting of two Cepheids shed more light on the evolution of multiple systems, and reveal their merger origin.
Physical properties of the quadruple system with early-type eclipsing binary
An early-type eclipsing binary turns out to be a hierarchical quadruple system. Analysis of its complex configuration, although not easy, yields masses, radii, and temperatures of the inner binary, and mass estimations of the two outermost components.
Was it a bird..? Was it a plane..?
It was… Falcon 9 😉
Local inauguration of Rolf Chini Cerro Murphy Observatory in Chile
April has been an eventful month for the Araucaria Project, because we took part in a series of events leading to the local, Chilean inauguration of the Rolf Chini Cerro Murphy Observatory (OCM).
Presentation of the OCM at the Polish Embassy in Santiago de Chile
Members of the Araucaria Project were invited to the cocktail party joined with the presentation of the Rolf Chini Cerro Murphy Observatory at the Embassy of the Republic of Poland in Santiago de Chile.
Orbital parameters of the inner binary system of the δ Cephei system
An inner companion has recently been discovered orbiting the prototype of classical Cepheids, δ Cep, whose orbital parameters are now reported.
Presentation of OCM at the space and aviation international fair FIDAE in Chile
Araucaria’s flag project – Rofl Chini Cerro Murphy Observatory – was presented at FIDAE (Feria Internacional del Aire y del Espacio) on April 11–14, 2024.