Results 71 to 80 of about 5,560 (224)

Beyond Sight: Neuromorphic Synapses Triggered by Invisible Light

open access: yesSmall, Volume 22, Issue 10, 17 February 2026.
This review collects advancements in neuromorphic and optoelectronic devices, offering a structured analysis based on stimulus energy levels and architectural designs within the invisible spectrum. By categorizing recent research according to utilized wavelengths, specifically X‐ray, UV, and IR ranges, the study highlights diverse synaptic properties ...
Jisoo Park   +4 more
wiley   +1 more source

Interstellar absorption across the electromagnetic spectrum

open access: yes, 2004
We report results of a multi-wavelength study of interstellar absorption in diffuse molecular clouds that lie in the direction of flat-spectrum quasars.
Tappe, Achim,
core   +1 more source

Photometric Mapping of Carbonaceous/Siliceous Dust and Water Ice in the ISM with JWST: Applications to the Dense Sightlines

open access: yesThe Astronomical Journal
We introduce a new photometric mapping method for the James Webb Space Telescope (JWST) to measure the spatial distribution of carbonaceous dust, siliceous dust, and water ice by using absorption features arising from the grains in the dense interstellar
Burcu Günay   +6 more
doaj   +1 more source

SOLAR RADIATION PRESSURE AND LOCAL INTERSTELLAR MEDIUM FLOW PARAMETERS FROM INTERSTELLAR BOUNDARY EXPLORER LOW ENERGY HYDROGEN MEASUREMENTS

open access: yes, 2013
Neutral hydrogen atoms that travel into the heliosphere from the local interstellar medium (LISM) experience strong effects due to charge exchange and radiation pressure from resonant absorption and re-emission of Lyα.
French, J.   +13 more
core   +1 more source

Observations of variability in interstellar absorption lines [PDF]

open access: yes, 2018
Nedavna otkrića varijabilnosti inteziteta međuzvjezdanih spektralnih linija ukazuju na moguće postojanje brzih i vrlo malih struktura materije u međuzvjezdanom mediju, reda veličine od 10 do 100 astronomskih jedinica (AU).
Vješnica, Stella
core  

Mixing Interstellar Clouds Surrounding the Sun

open access: yes, 2022
On its journey through the Galaxy, the Sun passes through diverse regions of the interstellar medium. High-resolution spectroscopic measurements of interstellar absorption lines in spectra of nearby stars show absorption components from more than a ...
Linsky, Jeffrey L   +9 more
core   +1 more source

The density distribution and 58.4 nm radiation intensity of interstellar helium in the heliosphere: a model simulation

open access: yesEarth and Planetary Physics
Research on the interstellar medium and its interaction with the solar system constitutes a significant topic in planetary physics. As the Sun traverses the local interstellar cloud, interstellar neutrals penetrate the heliosphere, forming the ...
JiaLing Lyu   +3 more
doaj   +1 more source

Observations of Interstellar Lyman-alpha Absorption

open access: yes, 1969
Interstellar Lyman alpha absorption spectra discrepancies emphasizing neutral ...
Jenkins, E. B.
core  

Ne and Fe Abundances in the Interstellar Medium: Archival Study of Fe-L and Ne-K Edges in Chandra and XMM-Newton

open access: yesThe Astrophysical Journal
The abundance of elements in the interstellar medium is a key facet for many fields of astrophysical study. In the soft X-ray spectra, absorption by interstellar gas can result in deep absorption features that affect continuum measurements. In this paper,
D. L. Moutard   +4 more
doaj   +1 more source

Strong and selective isotope effect in the vacuum ultraviolet photodissociation branching ratios of carbon monoxide

open access: yesNature Communications, 2019
Carbon monoxide is the main C and O reservoir in interstellar media, where it undergoes photochemistry. The authors show that isotopic substitution affects not only its absorption. spectrum and photodissociation rates but also the branching ratio, key to
Pan Jiang   +4 more
doaj   +1 more source

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