Results 21 to 30 of about 207,817 (216)

Interstellar Scintillation and Clouds of the Interstellar Turbulent Plasma [PDF]

open access: yesInternational Astronomical Union Colloquium, 2001
AbstractData on interstellar diffraction and refraction scintillation of pulsars are analyzed. Comparison between theory and the observational data shows that two types of spectra for electron density fluctuations are realized in the interstellar medium: pure power law and piecewise with a break. The distribution of turbulent plasma in the Galaxy has a
openaire   +2 more sources

Thermal desorption of water ice in the interstellar medium [PDF]

open access: yes, 2001
Water (H2O) ice is an important solid constituent of many astrophysical environments. To comprehend the role of such ices in the chemistry and evolution of dense molecular clouds and comets, it is necessary to understand the freeze-out, potential surface
Collings, Mark P.   +3 more
core   +5 more sources

The Distance to High-velocity Cloud Complex M

open access: yesThe Astrophysical Journal, 2023
λ -21 cm HI4PI survey data are used to study the anomalous-velocity hydrogen gas associated with high-velocity cloud Complex M. These high-sensitivity, high-resolution, high-dynamic-range data show that many of the individual features, including MI, MIIa,
G. L. Verschuur, J. T. Schmelz
doaj   +1 more source

Observations of the Local Interstellar Cloud [PDF]

open access: yesInternational Astronomical Union Colloquium, 1997
AbstractConstraints on the ambient (circumsolar) interstellar medium can be derived from observations of interstellar neutrals or their derivatives in the heliosphere. New results have been recently obtained which, when combined with optical and UV observations of the nearby stars (HST-GHRS, EUVE), remove long-standing contradictions and allow us to ...
openaire   +1 more source

Evolution of prolate molecular clouds at HII boundaries - I. formation of fragment-core structures [PDF]

open access: yes, 2014
The evolution of a prolate cloud at an HII boundary is investigated using smoothed particle hydrodynamics. The prolate molecular clouds in our investigation are setwith their semi-major axis perpendicular to the radiative direction of a plane-parallel ...
Goodwin S   +10 more
core   +1 more source

Studying the depth of nearby interstellar clouds [PDF]

open access: yes, 2021
Molecular clouds are the birthplace of stars and planets. Understanding how stars are formed inside these interstellar clouds is one of the longest-standing questions in astronomy.
Μπουζέλου, Φωτεινή Μαρία
core  

A study of C3HD in cold interstellar clouds

open access: yesThe Astrophysical Journal, 1988
The published version is located at http://adsabs.harvard.edu/doi/10.1086 ...
BELL, MB   +6 more
openaire   +2 more sources

Interstellar cloud collisions [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1985
On decrit les resultats d'une simulation numerique en 3 dimensions de nuages interstellaires isothermes en l'absence de champs magnetiques. Les collisions, en general, ne donnent pas naissance a un ou plusieurs nuages.
J. C. Lattanzio   +3 more
openaire   +1 more source

A chemical link between methylamine and methylene imine and implications for interstellar glycine formation

open access: yesCommunications Chemistry, 2022
The detection of glycine in comets is suggestive of a cosmic origin for amino acids on Earth, but the formation of glycine in interstellar media remains poorly understood.
Prasad Ramesh Joshi, Yuan-Pern Lee
doaj   +1 more source

Diffuse Interstellar Clouds [PDF]

open access: yesHighlights of Astronomy, 1992
AbstractDiffuse clouds are interstellar objects through which starlight is not greatly extinguished. As a result, many studies rely on ultraviolet and visible measurements. The focus of this review is on spectroscopic work involving atomic and molecular lines. From these measurements, the physical and chemical makeup of the clouds is derived.
David L. Lambert, S. R. Federman
openaire   +1 more source

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