Oral title: Clues for planet formation using brown dwarfs in Lupus with ALMA

Oral abstract: Following the discovery in 2012 (Ricci et al.) of millimetre-sized solid grains in a proto-brown dwarf disk, 
dust coagulation and planet formation seems to be feasible also in brown dwarfs.  The formation of brown dwarfs is still 
uncertain, and it may provide clues for planet formation. Although the latest discoveries point to a scaled down version of 
the star formation process, other models such as embryo ejection, stellar disk fragmentation or the photoevaporation of 
the core due to massive stars in the vicinity are not discarded. If theories such as embryo ejection or the 
photoevaporation are proven as realistic they should be applicable to the formation of giant planets with masses of 
several Jupiter masses.
Here, we present our latest ALMA cycle 3 observations of Lupus 1 and 3, where no massive stars are located. ALMA data 
were obtained in 1.3 mm (Band 6) and based on previous ASTE/AzTEC observations.
We report 13 previously unknown pre and proto-brown dwarfs. Five of them are resolved. The measured ALMA dust and 
gas masses are in the range of 0.32 to 2.09 Jupiter masses. Therefore, we discuss the possibility of planet formation 
along with the brown dwarfs that we discovered.