MODELING SUPERSONIC-JET DEFLECTION IN THE HERBIG–HARO 110-270 SYSTEM WITH HIGH-POWER LASERS

Journal Article · Thu Dec 10 04:00:00 EST 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/815/1/46· OSTI ID:22521796

Yuan, Dawei; Li, Yutong; Lu, Xin; Yin, Chuanlei; Su, Luning; Liao, Guoqian; Zhang, Jie ^[1]; Wu, Junfeng; Wang, Lifeng; He, Xiantu ^[2]; Zhong, Jiayong; Wei, Huigang; Zhang, Kai; Han, Bo; Zhao, Gang ^[3]; Jiang, Shaoen; Du, Kai; Ding, Yongkun ^[4]; Zhu, Jianqiang ^[5]

---

1. National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 (China)
2. Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)
3. Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)
4. Research Center for Laser Fusion, China Academy of Engineering Physics, Mianyang 621900 (China)
5. National Laboratory on High Power Lasers and Physics, Shanghai, 201800 (China)

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.

• OSTI ID: 22521796
• Journal Information: Astrophysical Journal, Journal Name: Astrophysical Journal Journal Issue: 1 Vol. 815; ISSN ASJOAB; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
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