diffuse cloud

diffuse cloud

A small atomic (H I) cloud that has too low a column density for it to be observed visually. Diffuse clouds constitute the bulk of the cold neutral medium in the three-phase description of the interstellar medium. They are usually observed by means of absorption features, such as the sodium D lines, in the spectra of background stars.
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As a result, once a rubidium atoms absorbs a photon, it swells up to such a size that no other atom in the diffuse cloud can accept any more photons.
The supernova remnants are embedded inside a huge, diffuse cloud of charged particles, or plasma, which absorbs radio waves from these sources.
I heard the voices of Sasha (2) and Serge as they entered the room; I saw in a diffuse cloud of shapes someone lifting what looked like a baseball bat and place it on my naked shins.
Outside this layer a more diffuse cloud of ions assembles to balance the charge.
Fair or unfair, every would-be Willie Mays operates under the diffuse cloud of drug suspicion, from future Hall of Famers like Roger Clemens on down.
Despite the star's glare, this diffuse cloud appears noticeably elongated.
It's primarily between 3,300 and 4,300 feet [below the surface] as a very diffuse cloud that is in concentrations that diminish as you go away from the wellhead," she said.
They will tug on the Oort cloud, a diffuse cloud of icy objects around the solar system thought to be a reservoir of comets.
In my 10-inch at 116x the diffuse cloud appears bright along its northern edge near the two stars, but fades quickly along the fanlike southern portion.
The process begins as the red giant sheds its atmosphere into space, creating a broad, diffuse cloud of matter.
22) clarified for me the point that dark matter actually exists as clouds of gravitationally condensed concentrations rather than as diffuse clouds of evenly distributed matter surrounding galaxies.
He said that one of the largest unresolved mysteries in galactic astronomy is how these giant, diffuse clouds form in the interstellar medium and this process plays a key role in the cosmic cycle of birth and death of stars.

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