Supervirial
Definition, Meaning & Examples
Part of speech adjective
Quick meaning: Supervirial is an adjective meaning (physics) Expanding at an accelerating rate.
Meaning
(physics) Expanding at an accelerating rate.
Example Sentences
It is subvirial when Q 1, which corresponds to a positive acceleration of the polar inertia moment, Ï > 0 (initial expansion).
If measured early enough (lt;2 Myr in our simulations, or #92;sim20 crossing times), the velocity dispersion can be used to determine whether a region was highly supervirial at birth without the risk of degeneracy.
For example, the 0.5-2 Myr old Orion Nebula Cluster ( ONC ), which is known to be supervirial with a virial mass about twice the observed mass ( Hillenbrand & Hartmann 1998 ), has already expelled its residual gas and is expanding rapidly.
For many of the young (~10Myr) star clusters M_(dyn) >> Mₚₕₒₜ Goodwin & Bastian (2006) suggest that this is a signature of gas expulsion and the 'infant mortality' scenario discussed in Section 2.1, i.e., they conclude that these clusters are supervirial.
Related Words
Related dictionary entries include hypervelocity, supervirile, hyperaccreting, exponential, hyperaccelerated, supersaturated.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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