Discovery of a wide planetary-mass companion of a brown dwarf in the Upper Scorpius association

Bibcode
2009AIPC.1094..469B
DOI
10.1063/1.3099150
Béjar, V. J. S.; Osorio, M. R. Zapatero; Pérez-Garrido, A.; Alvarez-Iglesias, C. A.; Martín, E. L.; Rebolo, R.; Villó-Pérez, I.; Díaz-Sánchez, A.
Bibliographical reference

COOL STARS, STELLAR SYSTEMS AND THE SUN: Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun. AIP Conference Proceedings, Volume 1094, pp. 469-472 (2009).

Advertised on:
2
2009
Number of authors
8
IAC number of authors
4
Citations
3
Refereed citations
3
Description
We present the discovery of a 14-8+2 MJup companion located at 670 AU from UScoC-TIO 108, a 60+/-20 MJup brown dwarf of the very young Upper Scorpius association. Optical and near-infrared photometry and spectroscopy confirm that both the primary and secondary are very cool objects, with Teff of 2700 and 2100 K, respectively, and that they are bona fide young members of the association. We will discuss the implications of the existence of wide substellar companions in current models of formation of these very low-mass objects. The results of this proceeding is also published in Béjar et al. 2008, ApJ, 673, L185.
Type
Non-refereed
Star formation

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