Results 71 to 80 of about 678,354 (195)
The formation of molecular hydrogen in the interstellar medium [PDF]
, 2010 H2 is the most abundant molecule in the interstellar medium and forms on the surface of interstellar dust grains. Laboratory studies have been conducted of HD formation on a dust grain analogue, which is a highly-oriented pyrolytic graphite surface ...
Islam, F.
core
, 1998 Author Institution: Department of Chemistry, The University of NottinghamThe unidentified diffuse interstellar absorption bands are observed in near-UV, visible and near-IR spectra recorded towards stars that are partially obscured by interstellar dust ...
Sarre, Peter J.
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Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà +10 more
wiley +1 more source
Disclosing Identities in Diffuse Interstellar Bands
, 2011 The linear isomer of C 3 H 2 has been proposed as the source of broad absorption bands in diffuse interstellar clouds, but it is still being debated.
Benjamin J. McCall, Takeshi Oka
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On the carriers of the diffuse interstellar bands [PDF]
Monthly Notices of the Royal Astronomical Society, 1993 A theory in which the diffuse interstellar bands are carried by the fulleranes C 60 H m (m = 1,2,..., 60) and their ions is investigated further. The molecules of this series have a variety of π-electron systems which are here assigned to two categories by size: global systems, which involve most of the carbon atoms in the molecule, and local systems,
openaire +1 more source
Deterministic Propagation of Suprathermal Ions Through the Heliosphere
Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.Abstract The PEPSSI instrument onboard New Horizons is sampling the energy range that bridges pickup and suprathermal He+ ${\mathrm{H}\mathrm{e}}^{+}$ ions for the first time in the outer heliosphere. New Horizons repeatedly encountered structures beyond 30 au that we interpret as the spiral of a corotating interaction region (CIR) for an extended ...
P. Kollmann +12 more
wiley +1 more source
The Diffuse Interstellar Bands: Contributed papers [PDF]
, 1994 Drawing a coherent picture of the observational characteristics of the Diffuse Interstellar Bands (DIB's) and the physical and chemical properties of its proposed carriers was the focus of this NASA sponsored conference. Information relating to absoption
Tielens, Alexander G. G. M.
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Position displacement of diffuse interstellar bands [PDF]
We re-consider the already published phenomenon: the blue shift of diffuse interstellar bands, observed in spectra of HD34078 (AE Aur) and members of the Sco OB1 association, in particular HD152233. We have analyzed 29 diffuse bands.
Galazutdinov, G. +3 more
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The abundance of interstellar C60 molecules toward BD+31°643 and other stars
Astronomy & AstrophysicsContext. The diffuse interstellar bands (DIBs) at 9577 and 9632 Å are attributed to electronic transitions of the C60+ fullerene ion; thus, its column density in molecular clouds may be inferred.
Rouillé Gaël, Gredel Roland
doaj +1 more source
Diffuse Interstellar Band Profiles [PDF]
Proceedings of the International Astronomical Union, 2013 AbstractA short review of the profiles of diffuse interstellar bands and their possible interpretation is given, largely from the perspective of absorption by gas-phase molecules. Potentially a crucial source of information on the nature of the diffuse band carriers, profile studies provide a promising avenue of research towards finding the solution to
openaire +1 more source