Results 61 to 70 of about 19,278 (241)

SQUARE2: Spacecraft in QUAdrature for Solar Exploration—A Mission Concept for Synergetic Observations of the Sun and Heliosphere

Frontiers in Astronomy and Space Sciences, 2022
SQUARE2 is the acronym for Spacecraft in QUAdrature for solaR Exploration, and is a mission concept for multi-instrumental two-point observations of the Sun and its environment. It stems from the need to have two probes that are systematically in orbital
D. Telloni
doaj   +1 more source

Heliospheric conditions that affect the interstellar gas inside the heliosphere [PDF]

Astronomy & Astrophysics, 2004
The interstellar gas that flows through the heliosphere is strongly affected by ionization close to the Sun, in particular solar photoionization, electron impact, and charge exchange. Therefore, the interpretation of any observation of interstellar gas in the inner heliosphere hinges upon the accurate knowledge of these effects and their variations. In
Mcmullin, D., R., Bzowski, M., Möbius, E., Pauluhn, A., Skoug, R., Thompson, W., Witte, M., von Steiger, R., Rucinski, D., Judge, D., Banaszkiewicz, M., Lallement, Rosine   +11 more
openaire   +4 more sources

The Chinese Radio Telescope Array for Interplanetary Scintillation Monitoring

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Solar flares, coronal mass ejections (CMEs) and enegertic particles, etc., are the driving sources that may cause catastrophic space weathers. It is desirable to obtain information of solar eruptions like flares and CMEs, etc., propagating from the Sun to the near‐Earth space.
Yihua Yan, Wei Wang, Jin Fan, Ming Xiong, Zhijun Chen, Linjie Chen, Cang Su, Sha Li, Jun Cheng, Jing Du, Xueshang Feng   +10 more
wiley   +1 more source

DIVISION II: SUN and HELIOSPHERE [PDF]

Proceedings of the International Astronomical Union, 2008
This report is on activities of the Division at the General Assembly in Rio de Janeiro. Summaries of scientific activities over the past triennium have been published in Transactions A, see Melrose et al. (2008), Klimchuk et al. (2008), Martinez Pillet et al. (2008) and Bougeret et al. (2008).
Donald B. Melrose, Valentin Martínez Pillet, David F. Webb, Lidia van Driel-Gesztelyi, Jean-Louis Bougeret, James A. Klimchuk, Alexander Kosovichev, Rudolf von Steiger   +7 more
openaire   +2 more sources

Driving Dynamical Inner‐Heliosphere Models With In Situ Solar Wind Observations

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Accurately reconstructing the solar wind throughout the inner heliosphere is essential for understanding solar–terrestrial interactions and improving space‐weather forecasts. Conventional reconstruction methods rely on photospheric magnetic field observations and coronal models to estimate solar wind conditions near the Sun, typically at 0.1 ...
M. J. Owens, L. A. Barnard, H. Turner, D. Gyeltshen, N. Edward‐Inatimi, J. O’Donoghue, M. Lockwood, S. Watson, M. Rutala, C. M. Jackman, P. Riley   +10 more
wiley   +1 more source

Assessment of detectability of neutral interstellar deuterium by IBEX observations [PDF]

, 2013
The abundance of deuterium in the interstellar gas in front of the Sun gives insight into the processes of filtration of neutral interstellar species through the heliospheric interface and potentially into the chemical evolution of the Galactic gas.
Bzowski, M., Kubiak, M. A., McComas, D. J., Möbius, E., Rodríguez, D. F., Sokół, J. M., Wurz, P.   +6 more
core   +1 more source

An Open‐Source Python Version of Power Spectral Density Periodicity Detection and Background Estimation Using the Adaptive Multitaper Method

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract The adaptive Multitaper Method (aMTM) is a Fourier analysis‐based technique that produces a power spectral density (PSD) with a user‐defined frequency resolution, reduces variance associated with standard digital Fourier Transform (FT) algorithms, and minimizes spectral power leakage.
Hector A. Salinas, Simone Di Matteo, Nicholeen M. Viall, Larry Kepko, Victoria D. Wilder   +4 more
wiley   +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

Some Similarities and Differences Between the Observed Alfvénic Fluctuations in the Fast Solar Wind and Navier–Stokes Turbulence

Frontiers in Astronomy and Space Sciences, 2020
Using two long data sets analyzed on equal footing, the properties of Alfvénic fluctuations in the fast (coronal-hole-origin) solar wind and Navier–Stokes turbulence are compared.
Joseph E. Borovsky, Tiziano Mina, Tiziano Mina   +2 more
doaj   +1 more source

Phenomenological Evaluation of the Electron Density‐Based Péclet Number of Near‐Earth Solar Wind Turbulence

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract The electron density‐based Péclet number has been measured for the first time in the solar wind, alongside a measure of the magnetic Reynolds number. The Péclet number is an important characteristic of energy and particle transport. High Péclet numbers indicate that particle advection dominates diffusion of energy.
T. J. E. Hand, O. W. Roberts, X. Li, Y. Narita, Z. Vörös   +4 more
wiley   +1 more source