INTERPLANETARY SHOCKS LACKING TYPE II RADIO BURSTS [PDF]
The Astrophysical Journal, 2010 We report on the radio-emission characteristics of 222 interplanetary (IP) shocks. A surprisingly large fraction of the IP shocks (~34%) is radio quiet (i.e., the shocks lacked type II radio bursts). The CMEs associated with the RQ shocks are generally slow (average speed ~535 km/s) and only ~40% of the CMEs were halos.
Gopalswamy, Natchimuthuk +7 more
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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
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
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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
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Efficiency of particle acceleration at interplanetary shocks: Statistical study of STEREO observations [PDF]
, 2016 Context. Among others, shocks are known to be accelerators of energetic charged particles. However, many questions regarding the acceleration efficiency and the required conditions are not fully understood. In particular, the acceleration of electrons by
N. Dresing +3 more
semanticscholar +1 more source
Sources of interplanetary shocks [PDF]
Advances in Space Research, 1995 Abstract The sources of interplanetary shocks are reviewed from the standpoint of today's knowledge. Recent progress from both new and accumulated observations and models indicates that contributions from the two major sources of the shocks: CMEs and stream interactions, have distinctive radial, latitudinal and temporal dependencies.
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Evolution of the Suprathermal Proton Population at Interplanetary Shocks
Astronomical Journal, 2019 We investigate the evolution of the suprathermal (ST) proton population as interplanetary shocks cross 1 au. The variability of the ST proton intensities and energy spectra upstream of the shocks is analyzed in terms of the shock parameters, upstream ...
D. Lario +6 more
semanticscholar +1 more source
What causes the variations of the peak intensity of CIR accelerated energetic ion fluxes? [PDF]
Annales Geophysicae, 1998 The variation of the peak intensity of energetic ions accelerated at CIR related shocks in the interplanetary medium as observed by instruments on board of ULYSSES during its pass towards the south polar region and from the north polar region back to ...
E. Keppler
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