Results 31 to 40 of about 2,360 (188)

Magnetic Effects Change Our View of the Heliosheath

, 2004
There is currently a controversy as to whether Voyager 1 has already crossed the Termination Shock, the first boundary of the Heliosphere. The region between the Termination Shock and the Heliopause, the Helisheath, is one of the most unknown regions ...
DeZeeuw, D. L., Gombosi, T. I., Liewer, P. C., Manchester, W., Opher, M., Sokolov, I., Toth, G., Velli, M.   +7 more
core   +2 more sources

Globally Distributed Energetic Neutral Atom Maps for the "Croissant" Heliosphere [PDF]

, 2018
A recent study by Opher et al. (2015) suggested the heliosphere has a "croissant" shape, where the heliosheath plasma is confined by the toroidal solar magnetic field. The "croissant" heliosphere is in contrast to the classically accepted view of a comet-
Drake, James F., Kornbleuth, Marc, Michael, Adam T., Opher, Merav   +3 more
core   +1 more source

Hydrogen wall and heliosheath Lyman-alpha absorption toward nearby stars: possible constraints on the heliospheric interface plasma flow

, 2002
In this paper, we study heliospheric Ly-$\alpha$ absorption toward nearby stars in different lines of sight. We use the Baranov-Malama model of the solar wind interaction with a two-component (charged component and H atoms) interstellar medium ...
Baranov, Baranov, Baranov, Baranov, Baranov, Baranov, Bertaux, Bertin, Bertin, Blum, Costa, Dalaudier, Dring, Fahr, Fichtner, Gruntman, Hebrard, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Lallement, Lallement, Linsky, Linsky, Lipatov, Malama, Müller, Müller, Parker, Patterson, Richardson, Thomas, Vlad Izmodenov, Wang, Weller, Williams, Witte, Wood, Wood, Wood, Wood, Wood, Zank   +43 more
core   +1 more source

Solar cycle influence on the interaction of the solar wind with Local Interstellar Cloud [PDF]

, 2005
We present results of a new time-dependent kinetic model of the H atom penetration through the solar wind - interstellar medium interaction region.
Alexashov, Alexashov, Alexashov, Baranov, Baranov, Baranov, Baranov, Baranov, Gazis, Gruntman, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Izmodenov, Karmesin, M. S. Ruderman, Malama, Myasnikov, Narain, Richardson, Scherer, V. Izmodenov, Wang, Wang, Witte, Witte, Y. Malama, Zank   +31 more
core   +1 more source

An analytic model of plasma-neutral coupling in the heliosphere plasma

, 2010
We have developed an analytic model to describe coupling of plasma and neutral fluids in the partially ionized heliosphere plasma medium. The sources employed in our analytic model are based on a $\kappa$-distribution as opposed to the Maxwellian ...
B. DASGUPTA, DASTGEER SHAIKH, Richardson, Shaikh   +3 more
core   +1 more source

Heavy coronal ions in the heliosphere. II. Expected fluxes of energetic neutral He atoms from the heliosheath

, 2012
Aims. A model of heliosheath density and energy spectra of alpha-particles and He+ ions carried by the solar wind is developed. Neutralization of heliosheath He+ ions, mainly by charge exchange (CX) with neutral interstellar H and He atoms, gives rise to
Bzowski, M., Grzedzielski, S., Swaczyna, P.   +2 more
core   +1 more source

Energetic Neutral Atoms from the Heliosheath

The Astrophysical Journal, 2006
We present the measurement and analysis of hydrogen energetic neutral atoms (ENAs) recorded with the NPD sensor of the ASPERA-3 instrument on board Mars Express during the cruise phase and the Mars orbit phase. We conclude that the origin of these ENAs is the inner heliosheath. The ENA energy spectra are all very similar and can be fitted well by a two-
P. Wurz, A. Galli, S. Barabash, A. Grigoriev   +3 more
openaire   +1 more source

Approximation of Daily AMS‐02 Spectra With Machine Learning Methods

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Almost three thousand daily AMS‐02 proton spectra from 2011 to 2019 offer the most precise and extensive data set of cosmic ray spectra covering a wide energy range. As such, they offer a unique opportunity to test machine learning algorithms for approximating cosmic ray proton spectra based on the inputs usually available to solar modulation ...
Martin Nguyen, Pavol Bobík, Ján Genči
wiley   +1 more source

Uncertainties in the heliosheath ion temperatures [PDF]

Annales Geophysicae, 2018
Abstract. The Voyager plasma observations show that the physics of the heliosheath is rather complex and that the temperature derived from observation particularly differs from expectations. To explain this fact, the temperature in the heliosheath should be based on κ distributions instead of Maxwellians because the former allows for much higher ...
K. Scherer, K. Scherer, H. J. Fahr, H. Fichtner, H. Fichtner, A. Sylla, J. D. Richardson, M. Lazar   +7 more
openaire   +5 more sources

Alfvénic Contribution From the Solar Wind to Magnetospheric Dynamics

Space Weather, Volume 23, Issue 10, October 2025.
Abstract This paper proposes for the first time a theoretical expression for the injection of energy from the solar wind into the ring current due to Alfvénic fluctuations. Using interplanetary and geomagnetic measurements, we select four case studies, validate our approach, and compute the parameters involved in the proposed expression.
E. Saiz, C. Cid
wiley   +1 more source