Diffuse Clouds

Some articles on clouds, diffuse, diffuse clouds, diffuse cloud:

Trihydrogen Cation - Astronomical Detection - Steady-state Model Predictions
... To approximate the pathlength of H3+ in these clouds, Oka used the steady-state model to determine the predicted number densities in diffuse and dense clouds ... As explained above, both diffuse and dense clouds have the same formation mechanism for H3+, but different dominating destruction mechanisms ... In dense clouds, proton transfer with CO is the dominating destruction mechanism ...
Interstellar Nitrogen Monohydride - Chemistry
... H3+ → NH2+ + H2 1.3x10−9 3.18x10−19 NH + H+ → NH+ + H 2.1x10−9 4.05x10−20 Within diffuse clouds H- + N → NH + e- is a major formation mechanism ... Depending on the radiation field in the diffuse cloud, NH2 can also contribute ... NH is destroyed in diffuse clouds by photodissociation and photionization ...

Famous quotes containing the words clouds and/or diffuse:

    There are these sudden mobs of men,
    These sudden clouds of faces and arms,
    An immense suppression, freed,
    These voices crying without knowing for what,
    Except to be happy, without knowing how,
    Imposing forms they cannot describe,
    Requiring order beyond their speech.
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    The genius of reading and of gardening are antagonistic, like resinous and vitreous electricity. One is concentrative in sparks and shocks: the other is diffuse strength; so that each disqualifies its workman for the other’s duties.
    Ralph Waldo Emerson (1803–1882)