This PhD thesis project are based on the study of objects located in Ophiuchus, the molecular cloud with the largest population of YSOs within 150 pc of the Sun. The studies are also part of follow-ups of the “Ophiuchus DIsk Survey Employing ALMA” (ODISEA,PID= 2016.1.00545.S) project (Cieza et al., 2019; Williams et al., 2019; Zurlo et al., 2020), which has been expanded to long-baseline observations (PID = 2018.1.00028.S; González-Ruilova et al. 2020, Cieza et al. 2021). This thesis is divided into the following four different projects, presented in order of physical scale, from small to large: 1) A Tale of Two Transition Disks: ALMA Long-baseline Observations of ISO-Oph 2 Reveal Two Closely Packed Non Axisymmetric Rings and a ∼2 AU Cavity, 2) Dust and Gas Analysis of proto Brown Dwarfs Candidates in the ODISEA Survey, 3) Molecular Line Results from the entire ODISEA Sample, 4) Dust Evolution Modeling in Transition Disks.
Type of project: PhD thesis
Status: Finished. Graduated 2025
Researchers: Camilo Gonzalez, Lucas Cieza
Funding source: ESO, Nucleo Milenio YEMS, CASSACA