Results 71 to 80 of about 720 (196)

Magnetic Turbulence Intermittency and Compressibility in the Inner Heliosheath and Very Local Interstellar Medium

The Astrophysical Journal Letters
We analyze Voyager 1 magnetic field data through 2024 to study fluctuations from the inner heliosheath into the very local interstellar medium (VLISM).
L.-L. Zhao, V. Florinski, G. P. Zank, M. Opher, J. Richardson, W. S. Kurth, A. Silwal, X. Zhu, N. S. M. Subashchandar, J. G. Alonso Guzman, Z. Jin   +10 more
doaj   +1 more source

Solar sail science mission applications and advancement : solar sailing: concepts, technology, missions [PDF]

, 2011
Solar sailing has long been envisaged as an enabling or disruptive technology. The promise of open-ended missions allows consideration of radically new trajectories and the delivery of spacecraft to previously unreachable or unsustainable observation ...
Macdonald, Malcolm, McInnes, Colin
core   +2 more sources

Intermittency in Voyager’s Magnetic Field Beyond the Heliosphere

The Astrophysical Journal
As the two Voyager spacecraft traveled beyond the heliosphere, they encountered a magnetic field environment that had never been observed before. Studies have attempted to characterize this new regime by examining the magnetic field intermittency.
L. Y. Khoo, G. Livadiotis, D. J. McComas, M. E. Cuesta, J. S. Rankin   +4 more
doaj   +1 more source

ARE COSMIC RAYS MODULATED BEYOND THE HELIOPAUSE?

The Astrophysical Journal, 2014
We discuss the possible spatial variation of Galactic and anomalous cosmic rays (GCRs and ACRs) at and beyond the heliopause (HP). Remaining within the framework of the Parker transport equation and assuming incompressible plasma in the heliosheath, we consider highly idealized simple-flow models and compare our GCR results with recent publications of ...
J. Kóta, J. R. Jokipii
openaire   +1 more source

Fourteen Years of Energetic Neutral Atom Observations from IBEX

The Astrophysical Journal Supplement Series
The Interstellar Boundary Explorer (IBEX) has been observing the outer heliosphere and its interactions with the very local interstellar medium (VLISM) via measurements of energetic neutral atoms (ENAs) for over 14 yr.
D. J. McComas, M. Alimaganbetov, L. J. Beesley, M. Bzowski, H. O. Funsten, P. H. Janzen, M. A. Kubiak, J. S. Rankin, D. B. Reisenfeld, N. A. Schwadron, J. R. Szalay   +10 more
doaj   +1 more source

Shocks, Compressible Perturbations, and Intermittency in the Very Local Interstellar Medium: Voyager 1 and 2 Observations and Numerical Modeling

The Astrophysical Journal
The Voyager spacecraft (V1 and V2) provide unique in situ measurements of perturbations propagating beyond the heliopause through the very local interstellar medium (VLISM), including the shocks and pressure fronts whose origin is debated. In particular,
Federico Fraternale, Nikolai V. Pogorelov, Ratan Bera, Leonard F. Burlaga, Maciej Bzowski   +4 more
doaj   +1 more source

Time-varying Heliospheric Distance to the Heliopause

The Astrophysical Journal, 2017
Using a three-dimensional MHD simulation, we examine the time-varying outer heliospheric structure and distance to the heliopause. Voyager 2 (V2) solar-wind observations show that a global merged interaction region (GMIR) with a ram-pressure of the order of several nPa normalized at 1 au enters the distant solar wind at an average rate of about one per
Haruichi Washimi, Takashi Tanaka, Gary P. Zank   +2 more
openaire   +1 more source

Implications of the Voyager 1 and 2 Magnetic Field Directions on the Energetic Neutral Atom Ribbon

The Astrophysical Journal
The interstellar magnetic field direction can be inferred from the position of the energetic neutral atom (ENA) Ribbon observed by Interstellar Boundary EXplorer (IBEX) and Voyager 1 and 2 in situ measurements.
E. Möbius, J. Rankin, M. Alimaganbetov, M. Shen   +3 more
doaj   +1 more source

Voyager 1 and 2 Observations of a Change in the Nature of Magnetic Fluctuations in the VLISM with Increasing Distance from the Heliopause

, 2020
Voyager 2 (V2) crossed the heliopause at 119.0 au on 2018 day 309, after which it observed compressive (longitudinal) magnetic field fluctuations along the average magnetic field direction in the very local interstellar medium (VLISM) at distances from ...
Park, Jeewoo, Burlaga, L. F., Berdichevsky, D. B., Ness, N. F., Jian, L. K., Szabo, A.   +5 more
core   +1 more source

Simulating a Steady-state Heliosphere

The Astrophysical Journal Supplement Series
Ever since the discovery of the solar wind, it has been understood that our solar system resides within a bubble of solar wind plasma that originates from the Sun.
Jacob Heerikhuisen, Eric J. Zirnstein, Nikolai V. Pogorelov   +2 more
doaj   +1 more source