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CAF\'E-BEANS: An exhaustive hunt for high-mass binaries

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arxiv 1412.5638 v1 pith:C37IX4HS submitted 2014-12-17 astro-ph.SR

CAF\'E-BEANS: An exhaustive hunt for high-mass binaries

I. Negueruela , J. Ma\'iz Apell\'aniz , S. Sim\'on-D\'iaz , E. J. Alfaro , A. Herrero , J. Alonso , R. Barb\'a , J. Lorenzo
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A. Marco M. Mongui\'o N. Morrell A. Pellerin A. Sota N. R. Walborn
This is my paper
classification astro-ph.SR
keywords binariese-beansstarsdetectinghigh-massspectroscopicaltobeen
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CAF\'E-BEANS is an on-going survey running on the 2.2 m telescope at Calar Alto. For more than two years, CAF\'E-BEANS has been collecting high-resolution spectra of early-type stars with the aim of detecting and characterising spectroscopic binaries. The main goal of this project is a thorough characterisation of multiplicity in high-mass stars by detecting all spectroscopic and visual binaries in a large sample of Galactic O-type stars, and solving their orbits. Our final objective is eliminating all biases in the high-mass-star IMF created by undetected binaries.

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