Results 121 to 130 of about 110,978 (225)

Physical-chemical processes in a protoplanetary cloud [PDF]

open access: yes
Physical-chemical processes in a protoplanetary cloud are discussed. The following subject areas are covered: (1) characteristics of the chemical composition of molecular interstellar clouds; (2) properties and physico-chemical process in the genesis of ...
Lavrukhina, Avgusta K.
core   +1 more source

The early evolution of the solar system [PDF]

open access: yes
The problems of relating collapse conditions in an interstellar cloud to a model of the primitive solar nebula are discussed. In such a nebula there is a radial force balance between gravity, the pressure gradient, and centrifugal forces due to the ...
Cameron, A. G. W.
core   +1 more source

The Passage of the Solar System through the Edge of the Local Bubble

open access: yesThe Astrophysical Journal
The Sun moves through the interstellar medium (ISM) at a velocity of ∼19 pc Myr ^−1 , making the conditions outside the solar system vary with time over millions of years.
Merav Opher   +12 more
doaj   +1 more source

Unusual relative strengths of the diffuse interstellar bands in some interstellar dust clouds [PDF]

open access: yes
Some of the diffuse interstellar features (DIBs) in the spectra of certain stars at high galactic latitudes (1 is greater than 15 degrees) are unusually weak or absent while others have the strength expected for their color excess.
Krelowski, J., Walker, G. A. H.
core   +1 more source

Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 Å Bump, q PAH, Ultraviolet Extinction Shape, and N(H i)/A(V)

open access: yesThe Astrophysical Journal
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way (MW) like to significantly steeper curves with no detectable 2175 Å bump.
Karl D. Gordon   +9 more
doaj   +1 more source

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