Nearby Young Stars and Young Moving Groups

Kavli Affiliate: David A. Principe

| First 5 Authors: Joel H. Kastner, David A. Principe, , ,

| Summary:

The past two decades have seen dramatic progress in our knowledge of the
population of stars of age $lesssim$150 Myr that lie within $sim$100 pc of
the Sun. Most such stars are found in loose kinematic groups ("nearby young
moving groups"; NYMGs). The proximity of NYMGs and their members facilitates
studies of the X-ray properties of coeval groups of pre-main sequence (pre-MS)
stars as well as of individual pre-MS systems. In this review, we focus on how
NYMG X-ray studies provide unique insight into the early evolution of stellar
magnetic activity, the X-ray signatures of accretion, and the irradiation and
dissipation of protoplanetary disks by high-energy photons originating with
their host pre-MS stars. We discuss the likely impacts of the next generation
of X-ray observing facilities on these aspects of the study of NYMGs and their
members.

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