Scattering of Superthermal Ions at Shocks: Dependence on Energy
The Astrophysical Journal, 2023 Diffusive shock acceleration requires the production of backstreaming superthermal ions (injection) as a first step. Such ions can be generated in the process of scattering of ions in the superthermal tail off the shock front. Knowledge of the scattering
Michael Gedalin +3 more
doaj +1 more source
High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +1 more source
Transit of the Interplanetary Shocks Associated with Type II Radio Bursts Within 1AU [PDF]
Journal of Astronomy and Space Sciences, 2007 Among the interplanetary shock (IP shock)s observed by ACE spacecraft at 1AU during 1997 to 2000, we have selected 31 IP shocks which had triggered the interplanetary type II radio bursts detected by the WIND spacecraft while those shocks were leaving ...
Su Yeon Oh, Yu Yi, Yong Ha Kim
doaj +1 more source
Interaction of a strong interplanetary shock with the termination shock [PDF]
Journal of Geophysical Research: Space Physics, 1999 The 1991 global merged interaction region (GMIR) shock is a strong forward shock observed from Voyager 2 on day 146 of 1991 at 34.6 AU. As the GMIR shock propagated out‐ward in the distant heliosphere, it eventually encounters the termination shock. We study the interaction of the GMIR shock with the termination shock taking into account the influence ...
J. Y. Lu, Y. C. Whang, L. F. Burlaga
openaire +1 more source
Shock Heating of Incident Thermal and Superthermal Populations of Different Ion Species
The Astrophysical Journal, 2023 Using ion tracing in a model shock front we study heating of thermal (Maxwellian) and superthermal (Vasyliunas–Siscoe) populations of protons, singly charged helium, and alpha particles. It is found that heating of thermal and superthermal populations is
Michael Gedalin +2 more
doaj +1 more source
Irregular Proton Injection to High Energies at Interplanetary Shocks
The Astrophysical Journal Letters, 2023 How thermal particles are accelerated to suprathermal energies is an unsolved issue, crucial for many astrophysical systems. We report novel observations of irregular, dispersive enhancements of the suprathermal particle population upstream of a high ...
Domenico Trotta +10 more
doaj +1 more source
Storm Sudden Commencements Without Interplanetary Shocks [PDF]
Journal of Astronomy and Space Sciences, 2015 Storm sudden commencements (SSCs) occur due to a rapid compression of the Earth's magnetic field. This is generally believed to be caused by interplanetary (IP) shocks, but with exceptions. In this paper we explore possible causes of SSCs other than IP
Wooyeon Park +4 more
doaj +1 more source
Formation of a strong southward IMF near the solar maximum of cycle 23 [PDF]
Annales Geophysicae, 2004 We analyzed observations of the solar activities and the solar wind parameters associated with large geomagnetic storms near the maximum of solar cycle 23.
S. Watari, M. Vandas, T. Watanabe
doaj +1 more source
Multiple spacecraft observations of interplanetary shocks: Characteristics of the upstream ULF turbulence [PDF]
, 1982 All interplanetary shocks observed by ISEE-3 and either ISEE-1 or ISEE-2 or both in 1978 and 1979 are examined for evidence of upstream waves. In order to characterize the properties of these shocks it is necessary to determine accurate shock normals. An
Bame, S. J. +4 more
core +2 more sources
Acceleration of Solar Wind Ions by Nearby Interplanetary Shocks: Comparison of Monte Carlo Simulations with Ulysses Observations [PDF]
, 1996 The most stringent test of theoretical models of the first-order Fermi mechanism at collisionless astrophysical shocks is a comparison of the theoretical predictions with observational data on particle populations.
Balogh A. +47 more
core +2 more sources