Results 11 to 20 of about 116,603 (307)
3D Simulations of Betelgeuse's Bow Shock [PDF]
Astronomy & Astrophysics, 2012 Betelgeuse, the bright, cool red supergiant in Orion, is moving supersonically relative to the local interstellar medium. The star emits a powerful stellar wind which collides with this medium, forming a cometary structure, a bow shock, pointing in the ...
Agertz +54 more
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The return of the bow shock [PDF]
The Astrophysical Journal, 2013 Recently it has been discussed whether a bow shock ahead of the heliospheric stagnation region does exist or not. This discussion was triggered by measurements indicating that the Alfv\'en speed and that of fast magnetosonic waves are higher than the ...
Fichtner, Horst, Scherer, Klaus
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Autogenous and efficient acceleration of energetic ions upstream of Earth's bow shock. [PDF]
Nature, 2018 Turner DL +23 more
europepmc +2 more sources
Astronomy and Astrophysics, 2010 Summary: Context. Shocks produced by outflows from young stars are often observed as bow-shaped structures in which the \(H_{2}\) line strength and morphology are characteristic of the physical and chemical environments and the velocity of the impact. Aims.
Gustafsson, Maiken +5 more
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SUPRATHERMAL ELECTRONS AT SATURN'S BOW SHOCK [PDF]
The Astrophysical Journal, 2016 ABSTRACT The leading explanation for the origin of galactic cosmic rays is particle acceleration at the shocks surrounding young supernova remnants (SNRs), although crucial aspects of the acceleration process are unclear. The similar collisionless plasma shocks frequently encountered by spacecraft in the solar wind are generally far ...
A. Masters +6 more
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Bow shocks, bow waves, and dust waves – III. Diagnostics [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT Stellar bow shocks, bow waves, and dust waves all result from the action of a star’s wind and radiation pressure on a stream of dusty plasma that flows past it. The dust in these bows emits prominently at mid-infrared wavelengths in the range 8 to 60 $\mu$m.
Henney, William J., Arthur, S. J.
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Nonthermal Emission from Stellar Bow Shocks [PDF]
The Astrophysical Journal, 2018 Abstract Since the detection of nonthermal radio emission from the bow shock of the massive runaway star BD +43°3654, simple models have predicted high-energy emission, at X-rays and gamma-rays, from these Galactic sources. Observational searches for this emission so far give no conclusive evidence but a few candidates at gamma-rays.
Del Valle, M. V., Pohl, M.
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The role of the bow shock in solar wind-magnetosphere coupling [PDF]
Annales Geophysicae, 2011 In this paper we examine the role of the bow shock in coupling solar wind energy to the magnetosphere using global magnetohydrodynamic simulations of the solar wind-magnetosphere interaction with southward IMF.
R. E. Lopez, V. G. Merkin, J. G. Lyon
doaj +1 more source
Martian Bow Shock and Magnetic Pile-Up Barrier Formation Due to the Exosphere Ion Mass-Loading [PDF]
Journal of Astronomy and Space Sciences, 2011 Bow shock, formed by the interaction between the solar wind and a planet, is generated in different patterns depending on the conditions of the planet.
Eojin Kim +6 more
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Magnetic field fluctuations across the Earth’s bow shock [PDF]
Annales Geophysicae, 2001 We present a statistical analysis of 132 dayside (LT 0700-1700) bow shock crossings of the AMPTE/IRM spacecraft. We perform a superposed epoch analysis of low frequency, magnetic power spectra some minutes up-stream and downstream of the bow shock ...
A. Czaykowska +7 more
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