molecular cloud


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molecular cloud

[mə′lek·yə·lər ′klau̇d]
(astronomy)
A dense cloud of interstellar gas in which molecules have formed in appreciable abundance.
References in periodicals archive ?
The cold molecular cloud that created the stars isn't clearly visible in the image.
"We have combined the zoom of CARMA with the wide-angle of NRO to simultaneously capture the details of individual forming stars and the overall shape and motions of the giant molecular cloud."
HII regions typically form within large molecular clouds, often in clusters (due to triggered star formation), and are therefore are also associated with significant amounts of dust grains.
Their intense light has been burning a hole in the dark fog of the Orion Molecular Cloud for tens of thousands of years.
Your body and the bacteria that reside on your skin are giving off a molecular cloud of human-specific odorants.
These chemicals don't drift in space by themselves, but need the protection of a molecular cloud to survive the ultraviolet radiation in space.
It's also the brightest portion of a giant molecular cloud (GMC) located approximately 6,000 light-years away in the Sagittarius spiral arm.
Using the L1641 molecular cloud that is part of the Orion A complex, the team showed that the mass distributions of the forming stars, which will become the IMF of that stellar population, are similar yet distinct for stars forming in the field (outside of the filaments) and on the filaments, with the former peaking at smaller mass values than the latter.
Consequently, with such high densities and large thermal velocities, these HII regions often cause otherwise collapsing clouds to expand into the ambient ISM, tearing apart the larger gravitationally bound molecular cloud.
The pi is one of the pioneers of galactic simulations of gmc and star formation was one of the first numericists to perform galactic scale simulations of molecular cloud formation and evolution, and has produced some of the most realistic and sophisticated isolated simulations of galaxies in this field to date.
The Perseus Molecular Cloud is about 600 light-years away from Earth and appears in the Perseus constellation.
A far more challenging target toward the northwest, the Taurus Molecular Cloud 1 (TMC-1) can be found just north of the Hyades and extends westward past the California Nebula (NGC 1499) and the Pleiades (M45).

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