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arXiv · 1412.5638

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

I. Negueruela·J. Maíz Apellániz·S. Simón-Díaz·E. J. Alfaro·A. Herrero·J. Alonso·R. Barbá·J. Lorenzo·A. Marco·M. Monguió·N. Morrell·A. Pellerin·A. Sota·N. R. Walborn
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Abstract

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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I. Negueruela, J. Maíz Apellániz, S. Simón-Díaz, E. J. Alfaro, A. Herrero, J. Alonso, R. Barbá, J. Lorenzo, A. Marco, M. Monguió, N. Morrell, A. Pellerin, A. Sota, N. R. Walborn. 2014-12-17. CAF\'E-BEANS: An exhaustive hunt for high-mass binaries. https://arxiv.org/abs/1412.5638

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