ASYMPTOTIC STEADY-STATE SOLUTION TO A BOW SHOCK WITH AN INFINITE MACH NUMBER

Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Astrophysical Journal

DOI:https://doi.org/10.3847/0004-637X/826/2/177· OSTI ID:22679573

Yalinewich, Almog; Sari, Re’em ^[1]

---

1. Racah Institute of Physics, the Hebrew University, 91904, Jerusalem (Israel)

The problem of a cold gas flowing past a stationary obstacle is considered. We study the bow shock that forms around the obstacle and show that at large distances from the obstacle the shock front forms a parabolic solid of revolution. The profiles of the hydrodynamic variables in the interior of the shock are obtained by solution of the hydrodynamic equations in parabolic coordinates. The results are verified with a hydrodynamic simulation. The drag force on the obstacle is also calculated. Finally, we use these results to model the bow shock around an isolated neutron star.

• OSTI ID: 22679573
• Journal Information: Astrophysical Journal, Vol. 826, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASYMPTOTIC SOLUTIONS
EQUATIONS
GAS FLOW
HYDRODYNAMIC MODEL
HYDRODYNAMICS
MACH NUMBER
NEUTRON STARS
SHOCK WAVES
SIMULATION
STEADY-STATE CONDITIONS