Results 111 to 120 of about 720 (196)

The effect of neutrals on the global heliosphere and interplanetary shock propagation time to the heliopause [PDF]

, 1995
A two-dimensional time-dependent two-fluid hydrodynamic model has been used to study numerically the effect of interstellar neutrals on the size and structure of the heliosphere.
Karmesin, S. R., Brackbill, J. U., Liewer, P. C.   +2 more
core  

Termination Shock Particle Streaming Upstream at New Horizons

The Astrophysical Journal Letters
A couple years before Voyager 1 and Voyager 2 (V2) crossed the termination shock (TS), instruments on board both spacecraft observed high intensities of accelerated termination shock particles (TSPs) beaming in opposite directions.
Erick Powell, Merav Opher, Ethan Bair, Matthew Hill, Romina Nikoukar, Joe Giacalone, Konstantinos Dialynas, John D. Richardson, Pontus C. Brandt, Kelsi N. Singer, S. Alan Stern, Elena Provornikova, Anne J. Verbiscer, Andrew R. Poppe, Joel Wm. Parker, New Horizons Heliospheric Team   +15 more
doaj   +1 more source

Energetic Neutral Atom Fluxes from the Voyager 1 and 2 Directions

The Astrophysical Journal
IBEX observes a globally distributed energetic neutral atom (ENA) flux from the heliosheath and very local interstellar medium (VLISM). Over a 14 yr period, Voyager 1 and Voyager 2 traversed the heliosheath from the termination shock to the heliopause ...
Stephen A. Fuselier, Eric J. Zirnstein, Jacob Heerikhuisen, André Galli, John D. Richardson, Daniel B. Reisenfeld, Nathan A. Schwadron, Maher A. Dayeh, David J. McComas, Herbert O. Funsten, Justyna M. Sokół, Merav Opher, Marc Z. Kornbleuth, Jonathan Gasser   +13 more
doaj   +1 more source

Inferring the Interstellar Magnetic Field Direction from Energetic Neutral Atom Observations of the Heliotail

The Astrophysical Journal Letters
Determining the magnitude and direction of the interstellar magnetic field ( B _ISM ) is a long-standing problem. To date, some methods to infer the direction and magnitude have utilized best-fit models to the positions of the termination shock and ...
M. Kornbleuth, M. Opher, M. A. Dayeh, J. M. Sokół, Y. Chen, E. Powell, D. L. Turner, I. Baliukin, K. Dialynas, V. Izmodenov   +9 more
doaj   +1 more source

Voyager Constraints on a Graded Heliopause

Voyager 1 and Voyager 2 provide rare in-situ constraints on a macroscopic astrophysical transition conventionally identified as the heliopause. The crossing intervals are inferred from coordinated instrument signatures. These include measured energetic-particle changes, magnetic-field vector and magnitude behavior, plasma-wave spectral activity with ...
openaire   +2 more sources

The Passage of the Solar System through the Edge of the Local Bubble

The Astrophysical Journal
The Sun moves through the interstellar medium (ISM) at a velocity of ∼19 pc Myr ^−1 , making the conditions outside the solar system vary with time over millions of years.
Merav Opher, Abraham Loeb, Catherine Zucker, Alyssa Goodman, Ralf Konietzka, Alexandra Z. Worden, Evan P. Economo, Jesse A. Miller, João Alves, Jonathan Grone, Marc Kornbleuth, J. E. G. Peek, Michael M. Foley   +12 more
doaj   +1 more source

Turbulence in the Local Interstellar Medium and the <i>IBEX</i> Ribbon. [PDF]

Astrophys J, 2020
Zirnstein EJ, Giacalone J, Kumar R, McComas DJ, Dayeh MA, Heerikhuisen J.   +5 more
europepmc   +1 more source

Oblique and rippled heliosphere structures from the Interstellar Boundary Explorer. [PDF]

Nat Astron, 2022
Zirnstein EJ, Shrestha BL, McComas DJ, Dayeh MA, Heerikhuisen J, Reisenfeld DB, Sokół JM, Swaczyna P.   +7 more
europepmc   +1 more source

Signatures of Reconnection and a Split Heliospheric Tail in High-energy Energetic Neutral Atoms

The Astrophysical Journal
The shape of the heliosphere, regarded as comet-like since the 1960s, has recently been the subject of intense debate in the last decade. There is disagreement as to whether the heliospheric tail extends to ∼10,000 au in a comet-like shape or if it is ...
M. Kornbleuth, M. Opher, J. F. Drake, M. Swisdak, Zhiyu Yin, K. Dialynas, Y. Chen, J. Giacalone, J. M. Sokół, M. Gkioulidou, I. Baliukin, V. Izmodenov, G. P. Zank   +12 more
doaj   +1 more source

Thermodynamic Definitions of Temperature and Kappa and Introduction of the Entropy Defect. [PDF]

Entropy (Basel), 2021
Livadiotis G, McComas DJ.
europepmc   +1 more source