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Examples ofsolar mass

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A 2-solar-masspulsar was discovered in 2010.

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Assume that a pair ofsolar-massneutron stars are in circular orbits at a distance of 1.89 m (189,000 km).

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The initial collapse of asolar-massprotostellar nebula takes around 100,000 years.

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This dense star, with an estimated 0.6solarmassand 0.028 solar radius, has an apparent magnitude of 17.5.

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In stars of more than approximatelysolarmass, it can take a billion years or more for the core to reach helium ignition temperatures.

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If, however, the mass of the protostar is less than about 0.08solarmass, normal hydrogen thermonuclear fusion reactions will not ignite in the core.

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Thus, radiation dominates in the inner portion ofsolarmassstars.

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Thesolarmassis quite a large unit on the scale of the solar system: 1.9884(2) kg.

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A more modern estimate is 1.00solarmass.

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This activity is caused by matter flowing onto a 65 millionsolarmasssupermassive black hole at the core.

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In a very low-mass star (less than about 0.5solarmass), the core is never hot enough to ignite helium.

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Its mass is 23 times thesolarmasswhile it has a surface temperature of 11,100 kelvins.

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Therefore,solarmassstars have radiative cores with convective envelopes in the outer portion of the star.

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The outer portion ofsolarmassstars is cool enough that hydrogen is neutral and thus opaque to ultraviolet photons, so convection dominates.

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The pulsar is about 1.8solarmassand the companion is about 0.25 solar masses.

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By comparison, the secondary has only 30% of asolarmass.

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The transition in primary energy production from one form to the other spans a range difference of less than a singlesolarmass.

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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.

单词	solar mass
释义	BETA Examples ofsolar mass Dictionary> Examples ofsolar mass solar massisn’t in the Cambridge Dictionary yet. You can help! Add a definition A 2-solar-masspulsar was discovered in 2010. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Assume that a pair ofsolar-massneutron stars are in circular orbits at a distance of 1.89 m (189,000 km). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The initial collapse of asolar-massprotostellar nebula takes around 100,000 years. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This dense star, with an estimated 0.6solarmassand 0.028 solar radius, has an apparent magnitude of 17.5. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In stars of more than approximatelysolarmass, it can take a billion years or more for the core to reach helium ignition temperatures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If, however, the mass of the protostar is less than about 0.08solarmass, normal hydrogen thermonuclear fusion reactions will not ignite in the core. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thus, radiation dominates in the inner portion ofsolarmassstars. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thesolarmassis quite a large unit on the scale of the solar system: 1.9884(2) kg. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A more modern estimate is 1.00solarmass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This activity is caused by matter flowing onto a 65 millionsolarmasssupermassive black hole at the core. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In a very low-mass star (less than about 0.5solarmass), the core is never hot enough to ignite helium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its mass is 23 times thesolarmasswhile it has a surface temperature of 11,100 kelvins. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Therefore,solarmassstars have radiative cores with convective envelopes in the outer portion of the star. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The outer portion ofsolarmassstars is cool enough that hydrogen is neutral and thus opaque to ultraviolet photons, so convection dominates. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The pulsar is about 1.8solarmassand the companion is about 0.25 solar masses. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. By comparison, the secondary has only 30% of asolarmass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The transition in primary energy production from one form to the other spans a range difference of less than a singlesolarmass. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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