| Issue |
EAS Publications Series
Volume 64, 2013
Setting a New Standard in the Analysis of Binary Stars
|
|
|---|---|---|
| Page(s) | 305 - 307 | |
| Section | Synergy: Binaries in Clusters and Galaxies | |
| DOI | https://doi.org/10.1051/eas/1364042 | |
| Published online | 25 February 2014 | |
K. Pavlovski, A. Tkachenko and G. Torres (eds)
EAS Publications Series, 64 (2013) 305–307
The Araucaria Project: Precise and accurate distance determination to the LMC and SMC
1 Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
2 Departamento de Astronomia, Universidad de Concepcion, Casilla 160-C, Chile
3 Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA, 911101-1292, USA
4 Leibniz-Institut fur Astrophysik Potsdam (AIP), An der Sternwarte 16, 14482 Potsdam, Germany
We present distance determinations to the LMC and SMC based on long period eclipsing binary systems composed of giants. Our LMC distance provides the best zero point for the whole extragalactic distance scale, while the precise relative distance between the LMC and SMC offers unique opportunity to study populational effects on the stellar distance indicators. Apart from distances, analysis of these systems allowed us to measure with a very good accuracy basic stellar parameters (1–2% radii, masses, effective temperature, etc.) of relatively large sample of giants. This catalog provides unique opportunity to calibrate evolutionary models of giant stars.
© EAS, EDP Sciences, 2014