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词汇 collapsar
释义

Definition of collapsar in English:

collapsar

nounkəˈlapsɑːkəˈlapˌsär
Astronomy
  • An old star that has collapsed under its own gravity to form a white dwarf, neutron star, or black hole.

    〔天文〕坍缩星,黑洞

    Example sentencesExamples
    • In collapsars the accretion flow toward the black hole has been studied in detail by Popham et al..
    • Two papers scheduled for an upcoming Astrophysical Journal Letters appear to support the collapsar model.
    • A key feature of the collapsar winds is that they are capable of producing radioactive elements necessary to power a long-duration supernova light curve.
    • Pruet and his colleagues are also investigating whether collapsars might be the sources of other elements as well.
    • Still, the collapsar is an extremely attractive model that fits a wide range of observed gamma-ray bursts.

Origin

1970s: from collapse, on the pattern of words such as pulsar.

Definition of collapsar in US English:

collapsar

nounkəˈlapˌsär
Astronomy
  • An old star that has collapsed under its own gravity to form a white dwarf, neutron star, or black hole.

    〔天文〕坍缩星,黑洞

    Example sentencesExamples
    • A key feature of the collapsar winds is that they are capable of producing radioactive elements necessary to power a long-duration supernova light curve.
    • Pruet and his colleagues are also investigating whether collapsars might be the sources of other elements as well.
    • Two papers scheduled for an upcoming Astrophysical Journal Letters appear to support the collapsar model.
    • In collapsars the accretion flow toward the black hole has been studied in detail by Popham et al..
    • Still, the collapsar is an extremely attractive model that fits a wide range of observed gamma-ray bursts.

Origin

1970s: from collapse, on the pattern of words such as pulsar.

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