circumstellar
1
9.9
- adjective
- /ˌsɜrkəmˈstɛlər/
- Specialized
- The circumstellar disk must be massive and cool.
- circumstellar disk
- circumstellar gas
- circumstellar material
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Watch on YouTubeIt seems like too tumultuous an environment for a quiescent planetary disk, circumstellar disk, to form planets from.
- It seems like too tumultuous an environment for a quiescent planetary disk, circumstellar disk, to form planets from.
Examples
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Astronomers often study the circumstellar disks of young stars to understand how planets form.
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The tomograms of U CrB, obtained from data collected at different times, illustrate that the structure of circumstellar gas can change dramatically from an accretion disk to a gas-stream distribution, sometimes overnight.
Academic text (2000) -
Young, newly formed stars are normally surrounded by a circumstellar disk of gas and dust.
Academic text (2004) -
We can find evidence of different types of circumstellar material through intense examination and study of the observed spectra.
Academic text (2000) -
As part of their survey, they are looking for circumstellar disks, indicating that disks around main sequence stars are rare.
Academic text (1994) -
Like their youthful counterparts, dead stars that generate collimated jets seem to require a circumstellar disc.
Academic text (1995) -
Then the core rapidly starts enveloping itself in gas it captures gravitationally from the circumstellar disk.
Academic text (2004) -
As we mentioned earlier, this inward migration has been one of the major concerns in the formation of gaseous planets in circumstellar disks.
Academic text (2004) -
They have considered the evolution of an Earth-mass-like rocky core in a turbulent circumstellar disk.
Academic text (2004) -
More importantly, including this random walk in the standard core-accretion model reduces the formation time to below a million years, well within the expected lifetime of most circumstellar disks around nascent stars.
Academic text (2004)
Synonyms
2
9.3
Around the outer edge of something, like a road around a city
Surrounding something on all sides, like walls around a town
How Close
Surface Forms
Morphology
Etymology
The word circumstellar breaks into the parts circum- meaning 'around', as in the word 'circle', and stellar from stella meaning 'star', so circumstellar describes something that is 'around a star'.