Lison Malo (U of Montreal)

Title:Nearby young kinematic group member: a combination of
kinematics, photometry, age-dating indicators and statistics to assign
membership

Abstract: Young nearby associations provide a crucial sample of stars
for studying the local star formation history, investigating the early
phases of planet formation, and searching for exoplanets through
direct imaging. Young associations, being sparsely populated and
relatively close to the Sun, their members are found all over the
sky. While known members of nearby young associations were confirmed
mostly through HIPPARCOS data, only the most massive (F, G and K)
members have been identified so far. As the initial mass function
peaks around 0.3 Msun (~M3V), the majority of young nearby objects
have yet to be discovered. In this talk, I will describe the past
studies carried out on the detection of members of kinematic groups. I
will explain the method by which we used kinematics, photometric
properties of young members combined with a Bayesian statistic to
identify highly probable members of those young kinematic
associations. I will also present the key elements leading to the
detection of these objects. This on-going work focuses on radial
velocity measurement to confirm their membership and age-dating
indicator measurement to confirm their age.