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.
@article{arxiv.1412.5638,
title = {CAF\'E-BEANS: An exhaustive hunt for high-mass binaries},
author = {I. Negueruela and J. Maíz Apellániz and S. Simón-Díaz and E. J. Alfaro and A. Herrero and J. Alonso and R. Barbá and J. Lorenzo and A. Marco and M. Monguió and N. Morrell and A. Pellerin and A. Sota and N. R. Walborn},
journal= {arXiv preprint arXiv:1412.5638},
year = {2018}
}
Comments
6 pages. To appear in Highlights of Spanish Astrophysics VIII, Proceedings of the XI Scientific Meeting of the Spanish Astronomical Society held on September 8 - 12, 2014, in Teruel, Spain. A. J. Cenarro, F. Figueras, C. Hern\'andez-Monteagudo, J. Trujillo, and L. Valdivielso (eds.)