Results 11 to 20 of about 832,537 (179)

Technology requirements of exploration beyond Neptune by solar sail propulsion [PDF]

open access: yes, 2010
This paper provides a set of requirements for the technology development of a solar sail propelled Interstellar Heliopause Probe mission. The mission is placed in the context of other outer solar systems missions, ranging from a Kuiper Belt mission ...
Hughes, G.W.   +2 more
core   +4 more sources

Accelerated Discovery-to-Unveiling of High-Performance and Affordable Ammonia Electrode Process by Human-Machine Collaboration Framework. [PDF]

open access: yesAngew Chem Int Ed Engl
By employing dimensionally reduced reaction descriptors, a human–machine collaboration framework for efficient electrochemical nitrate reduction to NH3 electrocatalysts screening is established and drastically shorten the discovery timeframe. A new kinetic model is established in combination with a rotating ring‐disk electrode, unveiling the pivotal ...
Cheng Y   +3 more
europepmc   +3 more sources

Whence the interstellar magnetic field shaping the heliosphere? [PDF]

open access: yes, 2022
Measurements of starlight polarized by aligned interstellar dust grains are used to probe the relation between the orientation of the ambient interstellar magnetic field (ISMF) and the ISMF traced by the ribbons of energetic neutral atoms discovered by ...
Schwadron, Nathan A.   +69 more
core   +1 more source

Turbulence in the interstellar medium [PDF]

open access: yes, 2014
Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
Chian, A. C. -L.   +9 more
core   +2 more sources

Constraints on the IBEX Ribbon’s Origin from Its Evolution over a Solar Cycle

open access: yesThe Astrophysical Journal, 2023
In 2009, the Interstellar Boundary Explorer (IBEX) discovered a narrow “ribbon” of energetic neutral atom emissions across the sky with properties correlated with the solar wind latitudinal structure and the interstellar magnetic field draped around the ...
E. J. Zirnstein   +3 more
doaj   +1 more source

Interstellar Conditions Deduced from Interstellar Neutral Helium Observed by IBEX and Global Heliosphere Modeling [PDF]

open access: yes, 2023
In situ observations of interstellar neutral (ISN) helium atoms by the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) mission are used to determine the velocity and temperature of the pristine very local interstellar medium (VLISM).
Fuselier, S. A.   +10 more
core   +2 more sources

A Plausible Model for the Galactic Extended Red Emission: Graphene Exposed to Far-ultraviolet Light

open access: yesThe Astrophysical Journal, 2023
Extended red emission (ERE) is a broad feature in the spectral region of 500–900 nm commonly observed in a wide range of circumstellar and interstellar environments.
Sheng-Lung Chou   +11 more
doaj   +1 more source

Complex Organics in Space: A Changing View of the Cosmos

open access: yesGalaxies, 2023
Planetary explorations have revealed that complex organics are widely present in the solar system. Astronomical infrared spectroscopic observations have discovered that complex organics are synthesized in large quantities in planetary nebulae and ...
Sun Kwok
doaj   +1 more source

Future Exploration of the Outer Heliosphere and Very Local Interstellar Medium by Interstellar Probe [PDF]

open access: yes, 2023
A detailed overview of the knowledge gaps in our understanding of the heliospheric interaction with the largely unexplored Very Local Interstellar Medium (VLISM) are provided along with predictions of with the scientific discoveries that await.
Kollmann, P   +150 more
core   +2 more sources

Searches for Neutrinos from Large High Altitude Air Shower Observatory Ultra-high-energy γ-Ray Sources Using the IceCube Neutrino Observatory

open access: yesThe Astrophysical Journal Letters, 2023
Galactic PeV cosmic-ray accelerators (PeVatrons) are Galactic sources theorized to accelerate cosmic rays up to PeV in energy. The accelerated cosmic rays are expected to interact hadronically with nearby ambient gas or the interstellar medium, resulting
R. Abbasi   +389 more
doaj   +1 more source

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