| The understanding of substellar object's formation is still full of unresolved questions. The current proposed formation scenarios require multiple observations in the molecular cloud, and onto evolved substellar objects. In that context, the study of surrounding structures of dense material around proto Brown Dwarfs becomes critical in the order to reject or approve the different theories and models. In particular we show the observations of molecular lines and dust continuum detections for class I, FT, and II, substellar objects and very low mass stars, belonging to one of the youngest nearby star formation region, the Ophiuchus molecular cloud. For the protoplanetary disk around these sources, the material presents sufficient mass to form terrestrial planets, and gas giant planets in some cases. Also ~40% of the targets present detectable gas line emission, related with extended structures, like possible outflows, streamers, envelopes, and diffuse shapes around the central substellar objects. Future deeper observations, and longer statistical survey are needed to support these first results observed at the same star formation region, and eventually, to get the real frame of the substellar formation scenarios. The understanding of substellar object's formation is still full of unresolved questions. The current proposed formation scenarios require multiple observations in the molecular cloud, and onto evolved substellar objects. In that context, the study of surrounding structures of dense material around proto Brown Dwarfs becomes critical in the order to reject or approve the different theories and models. In particular we show the observations of molecular lines and dust continuum detections for class I, FT, and II, substellar objects and very low mass stars, belonging to one of the youngest nearby star formation region, the Ophiuchus molecular cloud. For the protoplanetary disk around these sources, the material presents sufficient mass to form terrestrial planets, and gas giant planets in some cases. Also ~40% of the targets present detectable gas line emission, related with extended structures, like possible outflows, streamers, envelopes, and diffuse shapes around the central substellar objects. Future deeper observations, and longer statistical survey are needed to support these first results observed at the same star formation region, and eventually, to get the real frame of the substellar formation scenarios. |
