A deep look into the core of young clusters* II. λ-Orionis

@article{Bouy2009ADL,
title={A deep look into the core of young clusters* II. $\lambda$-Orionis},
author={Herv'e Bouy and Nuria Hu{\'e}lamo and David Barrado y Navascu{\'e}s and E. L. Mart{\'i}n and Monika G. Petr-Gotzens and Johann Kolb and Enrico Marchetti and M. Morales-Calder{\'o}n and Amelia Bayo and {\'E}tienne Artigau and Markus Hartung and Franck Marchis and Motohide Tamura and Michael Sterzik and Rainer Koehler and Valentin D. Ivanov and Dieter E. A. Nuernberger},
journal={Astronomy and Astrophysics},
year={2009},
volume={504},
pages={199-209}
}
Context. Over the past years, theλ−Orionis cluster has been a prime location for the study of young very low mass stars, substellar and isolated planetary mass objects and the determination of the initial mass function and other properties of low mass cluster members. Aims. In the continuity of our previous studies of young associati ons cores, we search for ultracool members and new multiple systems within the central 5. ′ 3 (≈0.6 pc) of the cluster. Methods. We obtained deep seeing limited J…

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