substellar object

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substellar object

[‚səb‚stel·ər ′äb‚jekt]
(astronomy)
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References in periodicals archive ?
Brown dwarfs are "failed stars," relatively lightweight substellar objects that commonly are thought to be born like stars--within a dense, heavy blob of material embedded within a giant, cold, dark, molecular cloud that collapses under the weight of its own gravity to give birth to a fiery new baby star.
Eventually, these discs become unstable and fragment to form low-mass stars and substellar objects, like brown dwarfs and planets," he added.
2) Substellar objects with true masses above the limiting mass for thermonuclear fusion of deuterium are 'brown dwarfs', no matter how they formed or where they are located.