protoplanetary nebula
collocation in Englishmeaningsofnebula
These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withnebula.
nebula
noun[C]
uk/ˈneb.jə.lə/us/ˈneb.jə.lə/
a cloud of gas or dust in space, appearing either bright ...
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(Definition ofnebulafrom theCambridge English Dictionary© Cambridge University Press)
Examplesofprotoplanetary nebula
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
The resulting spectrum is able to match the emission spectrum of aprotoplanetarynebula.
From theCambridge English Corpus
New developments in giant planet formation theory include models of layered protoplanetary discs and the idea that long-lived vortices in a turbulentprotoplanetarynebulacan initiate the formation of planets.
From theCambridge English Corpus
It includes fission in aprotoplanetarynebulaand there is no solar nebula.
From
Wikipedia
Aprotoplanetarynebulausually glows with the light from its parent star.
From
Wikipedia
Forty years ago it was still aprotoplanetarynebulain which the gas had not yet become hot and ionized.
From
Wikipedia
The reason for this revisitation lies in the fact that complex organic matter resembling a petroleum fraction may exist in certain protoplanetary nebulae.
From theCambridge English Corpus
These include the 21 and 30 mm emission features, and the extended red emission observed in protoplanetary nebulae and planetary nebulae.
From theCambridge English Corpus
Thus, these petroleum fractions can be used as model for the matter present in the interstellar medium or in the protoplanetary nebulae.
From theCambridge English Corpus
In this introduction, we have started from the observation that petroleum fractions may exist in certain protoplanetary nebulae.
From theCambridge English Corpus
It has also been discussed that the petroleum fractions may be incorporated in carbonaceous meteorites or in cometary nuclei during the evolution of protoplanetary nebulae.
From theCambridge English Corpus
In other words, it appears that the organic and carbonaceous matter present in the protoplanetary nebulae should be closer in composition to that found in carbonaceous chondrites.
From theCambridge English Corpus
We have also addressed our discussion to the possible formation of petroleum fractions or petroleum-like organic matter, which could exist both in the interstellar medium and in the protoplanetary nebulae.
From theCambridge English Corpus
The results suggest that protoplanetary nebulae and asteroids\\meteorites may be conducive to the origins of life, to early evolution, and to seeding the galaxy by natural or directed panspermia.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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