A&A 590, A13 (2016) Astronomy DOI: 10.1051/0004-6361/201628253 & c ESO 2016 Astrophysics Search for associations containing young stars (SACY) VII. New stellar and substellar candidate members in the young associations?,?? P. Elliott1; 2, A. Bayo3, C. H. F. Melo1, C. A. O. Torres4, M. F. Sterzik5, G. R. Quast4, D. Montes6, and R. Brahm7; 8 1 European Southern Observatory, Alonso de Cordova 3107, Vitacura Casilla 19001, Santiago 19, Chile e-mail:
[email protected] 2 School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL 3 Departamento de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña 1111, 5030 Casilla, Valparaíso, Chile 4 Laboratório Nacional de Astrofísica/ MCT, Rua Estados Unidos 154, 37504-364 Itajubá (MG), Brazil 5 European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany 6 Departamento de Astrofísica y Ciencias de la Atmósfera, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, 28040 Madrid, Spain 7 Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile 8 Millennium Institute of Astrophysics, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile Received 4 February 2016 / Accepted 7 March 2016 ABSTRACT Context. The young associations offer us one of the best opportunities to study the properties of young stellar and substellar objects and to directly image planets thanks to their proximity (<200 pc) and age (≈5−150 Myr). However, many previous works have been limited to identifying the brighter, more active members (≈1 M ) owing to photometric survey sensitivities limiting the detections of lower mass objects.