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The magnetic field produced by planets with active dynamos, like the Earth, can exert sufficient pressure to oppose supersonic stellar wind plasmas, leading to the formation of a standing bow shock upstream of the magnetopause, or…

Voyager 1 has explored the solar wind-interstellar medium interaction region between the Terminal Shock and the Heliopause, following the intensity distribution of the shock accelerated anomalous component of cosmic rays in the MeV energy…

Solar and Stellar Astrophysics · Physics 2015-06-16 J. J. Quenby , W. R. Webber

High-resolution IRAS maps are used to search for the presence of stellar-wind bow-shocks around high-mass X-ray binaries (HMXBs). Their high space velocities, recently confirmed with Hipparcos observations, combined with their strong…

Astrophysics · Physics 2009-11-07 Fredrik Huthoff , Lex Kaper

Recent far-infrared mapping of mass-losing stars by the AKARI Infrared Astronomy Satellite and Spitzer Space Telescope have suggested that far-infrared bow shock structures are probably ubiquitous around these mass-losing stars, especially…

We carry out two-dimensional global particle-in-cell simulations of the interaction between the solar wind and a dipole field to study the formation of the bow shock and magnetosphere. A self-reforming bow shock ahead of a dipole field is…

Earth and Planetary Astrophysics · Physics 2016-07-27 Zhongwei Yang , Can Huang , Ying D. Liu , George K. Parks , Rui Wang , Quanming Lu , Huidong Hu

The interaction of the wind from a pulsar (or more generally from a star) with t he amb ient medium gives rise to the formation of a bow-shock nebula. We present a mode l of adiabatic bow-shock nebulae, including the presence of a neutral…

Astrophysics · Physics 2009-11-07 N. Bucciantini

Because of the dynamic nature of the interstellar medium, the Sun should have encountered a variety of different interstellar environments in its lifetime. As the solar wind interacts with the surrounding interstellar medium to form a…

Astrophysics · Physics 2012-05-09 H. -R. Müller , P. C. Frisch , B. D. Fields , G. P. Zank

The solar wind (SW) and local interstellar medium (LISM) are turbulent media. Their interaction is governed by complex physical processes and creates heliospheric regions with significantly different properties in terms of particle…

Dust waves and bow waves result from the action of a star's radiation pressure on a stream of dusty plasma that flows past it. They are an alternative mechanism to hydrodynamic bow shocks for explaining the curved arcs of infrared emission…

Solar and Stellar Astrophysics · Physics 2019-04-24 William J. Henney , S. J. Arthur

Massive stars drive strong winds that impact the surrounding interstellar medium, producing parsec-scale bubbles for isolated stars and superbubbles around young clusters. These bubbles can be observed across the electromagnetic spectrum,…

Astrophysics of Galaxies · Physics 2022-11-17 Jonathan Mackey

The Sun is moving through a warm ($\sim$6500 K) and partly ionized local interstellar cloud (LIC) with a velocity of $\sim$26 km/s. Recent measurements of the ionization of the LIC (Wolff et al., 1999) suggest that interstellar helium in…

Astrophysics · Physics 2009-11-10 Vlad Izmodenov , Yury G. Malama , George Gloeckler , Johannes Geiss

Voyager 1 has explored the solar wind-interstellar medium interaction region between the terminal shock and heliopause following the intensity distribution of galactic cosmic ray protons above 200 MeV energy. Before this component reached…

Solar and Stellar Astrophysics · Physics 2015-09-09 J. J. Quenby , W. R. Webber

The interaction between Jupiter's magnetosphere and the solar wind is not well-constrained: while internal energetic plasma processes are thought to dominate plasma circulation, the solar wind nonetheless exerts significant control over the…

When a fast moving star or a protostellar jet hits an interstellar cloud, the surrounding gas gets heated and illuminated: a bow shock is born which delineates the wake of the impact. In such a process, the new molecules that are formed and…

Astrophysics of Galaxies · Physics 2017-11-27 L. N. Tram , P. Lesaffre , S. Cabrit , A. Gusdorf , P. T. Nhung

The solar system is moving through the partially ionized local interstellar cloud (LIC). The ionized matter of the LIC interacts with the expanding solar wind forming the heliospheric interface. The neutral component (interstellar atoms)…

Astrophysics · Physics 2015-06-24 V. V. Izmodenov , J. Geiss , R. Lallement , G. Gloeckler , V. B. Baranov , Y. G. Malama

A heliospheric termination shock (HTS) surrounds our solar system at approximately 100 astronomical units from the Sun, where the expanding solar wind (SW) is compressed and heated before encountering the interstellar medium.…

Solar and Stellar Astrophysics · Physics 2025-01-28 E. J. Zirnstein , R. Kumar , B. L. Shrestha , P. Swaczyna , M. A. Dayeh , J. Heerikhuisen , J. R. Szalay

We investigate the dynamics of bow shock nebulae created by pulsars moving supersonically through a partially ionized interstellar medium. A fraction of interstellar neutral hydrogen atoms penetrating into the tail region of a pulsar wind…

High Energy Astrophysical Phenomena · Physics 2015-11-04 G. Morlino , M. Lyutikov , M. J. Vorster

After the termination shock (TS) crossing, the Voyager 2 spacecraft has been observing strong variations of the magnetic field and solar wind parameters in the heliosheath. Anomalous cosmic rays, electrons, and galactic cosmic rays present…

Solar and Stellar Astrophysics · Physics 2015-06-15 E. Provornikova , M. Opher , V. Izmodenov , G. Toth

When a magnetosheath jet (localized dynamic pressure enhancements) compresses ambient magnetosheath at a (relative) speed faster than the local magnetosonic speed, a bow wave or shock can form ahead of the jet. Such bow waves or shocks were…

By analogy with the solar system, it is believed that stellar winds will form bow shocks around exoplanets. For hot Jupiters the bow shock will not form directly between the planet and the star, causing an asymmetric distribution of mass…

Earth and Planetary Astrophysics · Physics 2015-06-17 J Llama , A. A. Vidotto , M. Jardine , K. Wood , R. Fares , T. I. Gombosi