Oral Presentation

Complex organic molecules in Proto-brown dwarfs

Author(s): Basmah Riaz (LMU, Germany)

Presenter: Basmah Riaz (Research Staff, Ludwig Maximilians University)

A study of complex organic molecules (COMs) in the earliest Class 0 stage of star-formation is essential to probe the initial conditions of planet formation. COMs have been observed toward high- and low-mass protostars yet have never been detected among the Class 0 proto-brown dwarfs (proto-BDs). I will present results from the first deep molecular line survey of COMs in proto-BDs. Several oxygen- and nitrogen-bearing COMs with six or more atoms have been detected in these objects, with a wide range of more than two orders of magnitude in the molecular abundances. I will discuss the gas vs. grain formation pathways for the molecules and present an inter-comparison of the abundances among proto-BDs as well as with low- and high-mass protostars. This survey of multiple COMs provides an insight into the chemical complexity during the earliest phases of star-formation at the very low-mass end.