Laboratory Analog of Heavy Jets Impacting a Denser Medium in Herbig–Haro (HH) Objects
Laboratory Analog of Heavy Jets Impacting a Denser Medium in Herbig–Haro (HH) Objects
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DOI：
10.3847/1538-4357/aae83d
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
G. Liang;J. Zhong;Huigang Wei;D. Yuan;Z. Zhang;C. Wang;B. Han;B. Zhu;Weiman Jiang;J. Peng;J. Peng;T. Tao;G. Hu;Fang Wang;X. Gao;B. Zhu;Jianqiang Zhu;X. Ma;Yutong Li;Gang Zhao;Jie Zhang
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文献类型：
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作者：
G. Liang;J. Zhong;Huigang Wei;D. Yuan;Z. Zhang;C. Wang;B. Han;B. Zhu;Weiman Jiang;J. Peng;J. Peng;T. Tao;G. Hu;Fang Wang;X. Gao;B. Zhu;Jianqiang Zhu;X. Ma;Yutong Li;Gang Zhao;Jie Zhang
原恒星中的 X 射线发射在原恒星盘的化学和限制喷流形成的物理过程中发挥着重要作用。我们通过实验研究了原恒星喷流中 X 射线发射的机制，并模拟了它们与周围介质的相互作用。模拟超音速射流由强激光束照射 K 形目标产生，然后撞击障碍物。我们成功地观测到了障碍物表面的X射线发射，发现它来自于流出物质，而不完全来自于受冲击加热的环境介质。
X-ray emissions in protostars play an important role in the chemistry of protostellar disks and in constraining the physics of jet formation. We have experimentally investigated the mechanism of X-ray emission in protostellar jets and modeled their interaction with the surrounding medium. The simulated supersonic jet is generated by intense laser beams irradiating a K-shaped target and then impacts an obstacle. We have successfully observed X-ray emission from the obstacle surface, and we find that it comes from the outflow material and not completely from the ambient medium heated by shock.