Poster Open Access

External Photoevaporation of Disks around Low Mass Young Stellar and Sub-Stellar Objects

Kim, J. Serena; Fang, Min; Clarke, Cathie; Facchini, Stefano; Pascucci, Ilaria; Apai, Daniel; Haworth, Thomas


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&lt;p&gt;External UV environment of stellar nurseries plays a major role on evolution of protoplanetary disks around young stellar objects.&amp;nbsp; Photoevaporating protoplanetary disks (proplyds) have been found mainly around O stars in strong radiation environments, most of which are found in the Orion Nebula Cluster.&amp;nbsp; However our recent studies also found proplyds in immediate vicinity of B stars, which implies that intermediate UV radiation environment can also affect disk evolution of young stellar objects, and&amp;nbsp; potentially planet formation in such disks.&amp;nbsp; We present our recent studies of proplyds around low mass young stellar- and sub-stellar objects, some of which may be potentially forming free-floating planetary mass objects. &amp;nbsp; We will present our findings of the proplyds in NGC 1977 and NGC 2024, and show some selected proplyds around low mass sub-stellar objects. We will discuss the implication and the role of external UV environment in star and planet formation.&amp;nbsp;&lt;/p&gt;</subfield>
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