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]
[http://www.asj.or.jp/tennet/archives/msg09685.html]
Apr. 2019, we started Division of Science．In the first colloquum on 3rd Apr., we introduced ourselves each other. In all 54 people gathered and presented their researches , hobbies and so on. Since the number of the people is increased compared to that of Division of Theoretical Astronomy, we used Large seminar room in Subaru Building.
[http://www.asj.or.jp/tennet/archives/msg08970.html]
[http://www.asj.or.jp/tennet/archives/msg08970.html]
[https://alma-telescope.jp/en/news/pasj-201804]
