Results 81 to 90 of about 15,397 (165)

Cosmic rays in the heliosphere [PDF]

The different types of cosmic ray particles and their role in the heliosphere are briefly described. The rates of various energetic particles were examined as a function of time and used to derive various differential energy gradients.
Webber, William R.
core   +1 more source

Machine Learning‐Ready Data Sets for the Analysis and Nowcasting of Atmospheric Radiation at Aviation Altitudes

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Nowcasting and forecasting of the radiation environment in the Earth's lower atmosphere are critical for the safety of aircraft and spacecraft crews and passengers. Currently, this problem is addressed by employing statistical and physics‐based models that take into account particle transport and precipitation.
V. M. Sadykov, Z. M. Watkins, D. Kempton, W. Jones, S. K. C, G. T. Goodwin, X. He, W. K. Tobiska, I. Kitiashvili, C. Mertens, S. Ranjan, D. G. Deardorff, R. Spaulding   +12 more
wiley   +1 more source

Antiproton modulation in the Heliosphere and AMS-02 antiproton over proton ratio prediction

, 2011
We implemented a quasi time-dependent 2D stochastic model of solar modulation describing the transport of cosmic rays (CR) in the heliosphere. Our code can modulate the Local Interstellar Spectrum (LIS) of a generic charged particle (light cosmic ions ...
Bobik, P., Boschini, M. J., Consolandi, C., Della Torre, S., Gervasi, M., Grandi, D., Kudela, K., Pensotti, S., Rancoita, P. G.   +8 more
core   +1 more source

The Constraint of Crewed Mars Missions Based on Current Radiation Dose Measurements

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Crewed missions to Mars will be a milestone of future space exploration programs. However, the absence of Earth's magnetic field leaves astronauts directly exposed to unattenuated energetic particles in deep space, primarily galactic cosmic rays (GCRs), resulting in significantly higher radiation levels and enhanced health risks. Understanding
Chao Zhang, Weihao Liu, Jingnan Guo, Mikhail Dobynde, Robert F. Wimmer‐Schweingruber   +4 more
wiley   +1 more source

Implementing 3D Geometry of a Coronal Mass Ejection in the Drag‐Based Model

Space Weather, Volume 24, Issue 3, March 2026.
Abstract The drag‐based model (DBM) is a simple and widely used analytical tool for predicting the arrival time and speed of interplanetary coronal mass ejections (ICMEs) throughout the heliosphere. The current DBM is two‐dimensional; we extend it to three dimensions by applying a non‐self‐similar cone geometry in both the equatorial and meridional ...
M. Dumbović, K. Martinić, A. K. Remeshan, G. Chikunova, M. Temmer, D. Sudar, B. Vršnak, J. Čalogović, S. Lulić   +8 more
wiley   +1 more source

The Orientation of the Local Interstellar Magnetic Field

, 2007
The orientation of the local interstellar magnetic field introduces asymmetries in the heliosphere that affect the location of heliospheric radio emissions and the streaming direction of ions from the termination shock of the solar wind.
Gombosi, T. I., Opher, M., Stone, E. C.
core   +1 more source

Earth's Mesosphere During Possible Encounters With Massive Interstellar Clouds 2 and 7 Million Years Ago

Geophysical Research Letters
Our solar system's path has recently been shown to potentially intersect dense interstellar clouds 2 and 7 million years ago: the Local Lynx of Cold Cloud and the edge of the Local Bubble.
Jesse A. Miller, Merav Opher, Maria Hatzaki, Kyriakoula Papachristopoulou, Brian C. Thomas   +4 more
doaj   +1 more source

Warm Breeze from the starboard bow: a new population of neutral helium in the heliosphere

, 2014
We investigate the signals from neutral He atoms observed from Earth orbit in 2010 by IBEX. The full He signal observed during the 2010 observation season can be explained as a superposition of pristine neutral interstellar He gas and an additional ...
Alexashov, D. B., Bzowski, M., Fuselier, S. A., Grzedzielski, S., Izmodenov, V. V., Kubiak, M. A., Leonard, T., McComas, D. J., Moebius, E., Sokół, J. M., Swaczyna, P., Wurz, P.   +11 more
core   +1 more source

Fifty years of studying the GCR intensity during inversion of the heliospheric magnetic fields. II. HMF inversion on the inner heliospheric boundary

Solar-Terrestrial Physics
Phenomena in the outer layer of the solar atmosphere, the heliosphere, including the supersonic solar wind, the heliospheric magnetic field (HMF) carried by it, and cosmic rays propagating in the heliosphere are important for many processes occurring in ...
Krainev M. B., Kalinin M. S.
doaj   +1 more source

Long-term solar activity and its implications to the heliosphere, geomagnetic activity, and the Earth’s climate

Journal of Space Weather and Space Climate, 2013
The Sun’s long-term magnetic variability is the primary driver of space climate. This variability is manifested not only in the long-observed and dramatic change of magnetic fields on the solar surface, but also in the changing solar radiative output ...
Tanskanen Eija, Nandy Dibyendu, Manoharan Periasamy, Mursula Kalevi, Verronen Pekka   +4 more
doaj   +1 more source