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Author Yuan, Dawei ♦ Li, Yutong ♦ Lu, Xin ♦ Yin, Chuanlei ♦ Su, Luning ♦ Liao, Guoqian ♦ Zhang, Jie ♦ Wu, Junfeng ♦ Wang, Lifeng ♦ He, Xiantu ♦ Zhong, Jiayong ♦ Wei, Huigang ♦ Zhang, Kai ♦ Han, Bo ♦ Zhao, Gang ♦ Jiang, Shaoen ♦ Du, Kai ♦ Ding, Yongkun ♦ Zhu, Jianqiang
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ ASTROPHYSICS ♦ COLLISIONS ♦ HERBIG-HARO OBJECTS ♦ JETS ♦ LASER RADIATION ♦ MACH NUMBER ♦ PLASMA ♦ PROPER MOTION ♦ SHOCK WAVES ♦ SIMULATION ♦ STAR EVOLUTION ♦ STARS ♦ TWO-DIMENSIONAL CALCULATIONS ♦ TWO-DIMENSIONAL SYSTEMS
Abstract Herbig–Haro (HH) objects associated with newly born stars are typically characterized by two high Mach number jets ejected in opposite directions. However, HH 110 appears to only have a single jet instead of two. Recently, Kajdi et al. measured the proper motions of knots in the whole system and noted that HH 110 is a continuation of the nearby HH 270. It has been proved that the HH 270 collides with the surrounding mediums and is deflected by 58°, reshaping itself as HH 110. Although the scales of the astrophysical objects are very different from the plasmas created in the laboratory, similarity criteria of physical processes allow us to simulate the jet deflection in the HH 110/270 system in the laboratory with high power lasers. A controllable and repeatable laboratory experiment could give us insight into the deflection behavior. Here we show a well downscaled experiment in which a laser-produced supersonic-jet is deflected by 55° when colliding with a nearby orthogonal side-flow. We also present a two-dimensional hydrodynamic simulation with the Euler program, LARED-S, to reproduce the deflection. Both are in good agreement. Our results show that the large deflection angle formed in the HH 110/270 system is probably due to the ram pressure from a flow–flow collision model.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-12-10
Publisher Place United States
Journal Astrophysical Journal
Volume Number 815
Issue Number 1


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