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Unveiling Mechanism of X-ray flares in Protostars

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Stars are born as a result of gravitational contraction of cold gas. For this reason, it had been considered that protostars are irrelevant to the high energy phenomena that show strong X-ray radiation. However, X-ray observations have revealed that protostars often produce violent X-ray explosions. To resolve the problem, Drs. Takasao, Iwasaki, and their collaborators performed large simulations of growing protostars using the supercomputer at Center for Computational Astrophysics, NAOJ. As a result, they found a new energy release mechanism consistent with observations. This result is important for understanding the birth of stars.

(2019/06/06)

Reference:
Takasao et al., 2019, The Astrophysical Journal Letters, Volume 878, Issue 1, article id. L10, 7 pp. [ADS][ApJL]
Contact:
Takasao, Shinsuke [personal website]
Iwasaki, Kazunari [personal website]

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