ASIAA Summer Students Program
ASIAA Summer Student Program 2021
July 1 - August 31

2021 Project Description

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The nature of low-velocity winds from young stars with protoplanetary disks

OIR Astronomy
Star and Planet Formation


Hiro Takami, Jennifer Karr
Find out more about supervisors on ASIAA website

Task Description and Goals

The photoevaporation processes in protoplanetary disks (i.e., nurseries for planet formation) may significantly affect the evolution of the disks at planet forming radii, and therefore the final planetary architectures. The student will be expected to reduce data and analyze the low-velocity wind emission seen in our optical spectra obtained at Subaru, one of the best optical-IR telescopes in the world. Thanks to the large mirror of the telescope, the spectra must contain a number of emission lines from a variety of atoms and ions, useful for investigating kinematics and ionizing structures in the wind. Using emission line profiles and their positional offsets, we will analyze the physical conditions of the winds associated with a few active young stars and investigate if the wind is driven by photoevaporation or another physical mechanism. We would be happy to continue to work with the student even after this summer if s/he is exceptionally good and the project becomes successful enough for professional publication.

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