Laboratory Investigation of Astrophysical Collimated Jets with Intense Lasers
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Laboratory Investigation of Astrophysical Collimated Jets with Intense Lasers
- 发表刊物：
- Astrophysical Journal
- 摘要：
- One of the remarkable dynamic features of the Herbig-Haro (HH) object is its highly collimated propagation far away from the accretion disk. Different factors are proposed to give us a clearly physical explanation behind these fascinating phenomena, including magnetic field, radiation cooling, surrounding medium, and so on. Laboratory astrophysics, as a new complementary method of studying astrophysical issues, can provide an insight into these behaviors in a similar and controllable laboratory environment. Here we report the scaled laboratory experiments that a well-collimated radiative jet with high Mach number is successfully created to mimic the evolution of HH objects. According to our results, we find that the radiation cooling effect within the jet and the outer rare surrounding plasmas from the X-ray (>keV) photoionized target contribute to the jet collimation. The local nonuniform density structures along the collimated radiative jet axis are caused by the pressure competition between the inner jet and the outer plasmas. The corresponding simulations performed with radiation hydrodynamic codes FLASH reveal how the radiative jet evolves.
- 合写作者：
- Dawei Yuan, Yutong Li*, Tao Tao, Huigang Wei, Jiayong Zhong, B.J. Zhu, Yanfei Li
- 是否译文：
- 否
- 发表时间：
- 2018-06-20