Results 21 to 30 of about 105,573 (267)

Voyager Observations of Electron Densities in the Very Local Interstellar Medium

open access: yesThe Astrophysical Journal, 2023
The two Voyager spacecraft have now been immersed in the very local interstellar medium for several years. Both spacecraft carry a plasma wave instrument capable of detecting plasma waves that yield electron density through the determination of the ...
W. S. Kurth   +4 more
doaj   +1 more source

Determination of interstellar pickup ion distributions in the solar wind with SOHO and Cluster [PDF]

open access: yesAnnales Geophysicae, 1996
Over the last 10 years, the experimental basis for the study of the local interstellar medium has been substantially enhanced by the direct detection of interstellar pickup ions and of interstellar neutral helium within the heliosphere.
E. Möbius   +3 more
doaj   +1 more source

How catching the interstellar wind in the inner solar system led the way on a road to interdisciplinary research between heliophysics and astrophysics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Combined in situ observations of the interstellar wind through the solar system and of its pickup ions (PUIs), implanted after ionization in the solar wind, explain, in comparison with interstellar absorption lines of nearby stars, that the Sun is in an ...
Eberhard Möbius
doaj   +1 more source

On Graphene in the Interstellar Medium [PDF]

open access: yesThe Astrophysical Journal, 2017
Abstract The possible detection of C24, a planar graphene that was recently reported to be in several planetary nebulae by García-Hernández et al., inspires us to explore whether and how much graphene could exist in the interstellar medium (ISM) and how it would reveal its presence through its ultraviolet (UV) extinction and infrared (IR)
X. H. Chen   +3 more
openaire   +4 more sources

A future interstellar probe on the dynamic heliosphere and its interaction with the very local interstellar medium: In-situ particle and fields measurements and remotely sensed ENAs

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The recently published Interstellar Probe (ISP) study report describes a pragmatic mission concept with a launch window that starts in 2036 and is expected to reach several hundreds of astronomical units past the heliopause within a time frame of ≥50 ...
K. Dialynas   +30 more
doaj   +1 more source

Phosphorus in the diffuse interstellar medium [PDF]

open access: yesAstronomy & Astrophysics, 2005
We present FUSE and HST/STIS measurements of the PII column density toward Galactic stars. We analyzed PII through the profile fitting of the unsaturated $ $1125 and $ $1533 lines and derived column densities integrated along the sightlines as well as in individual resolved components.
Lebouteiller, Vianney   +2 more
openaire   +4 more sources

Dust evolution, a global view I. Nanoparticles, nascence, nitrogen and natural selection … joining the dots [PDF]

open access: yesRoyal Society Open Science, 2016
The role and importance of nanoparticles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), focusing on their active surface chemistry, the effects of ...
A. P. Jones
doaj   +1 more source

Dust evolution, a global view: III. Core/mantle grains, organic nano-globules, comets and surface chemistry [PDF]

open access: yesRoyal Society Open Science, 2016
Within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), this work explores the surface processes and chemistry relating to core/mantle interstellar and cometary grain structures and their influence on the nature ...
A. P. Jones
doaj   +1 more source

Supernovae Origin for the Low-latitude Intermediate-velocity Arch and the North Celestial Pole Loop

open access: yesThe Astrophysical Journal, 2023
Supernova explosions attributed to the unseen companion in several binary systems identified by the Third Gaia Data Release (Gaia DR3) may be responsible for a number of well-known and well-studied features in the radio sky, including the low-latitude ...
J. T. Schmelz   +3 more
doaj   +1 more source

INTERSTELLAR MEDIUM AND DECAMETER RADIO SPECTROSCOPY [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio ...
S. V. Stepkin   +3 more
doaj   +1 more source

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