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When will a pulsar in supernova 1987a be seen?

F C Michel, C F Kennel, W A Fowler

    Science (New York, N.Y.)
    |November 13, 1987
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers explored detecting pulsars within Supernova 1987A. A pulsar

    Area of Science:

    • Astrophysics
    • Supernova Remnants
    • Neutron Stars

    Background:

    • Supernova 1987A (SN 1987A) is a key object for studying stellar evolution and explosion mechanisms.
    • Type II supernovae exhibit light curves with slower-than-radioactive decay, the cause of which is debated.

    Purpose of the Study:

    • To investigate the potential detection of a pulsar within the remnant of Supernova 1987A.
    • To propose a novel hypothesis linking the observed light curve decay to pulsar activity and nebular opacity.

    Main Methods:

    • Analysis of the light curve characteristics of Type II supernovae, specifically SN 1987A.
    • Theoretical modeling of energy transfer from an embedded pulsar through a dynamic supernova remnant.

    Main Results:

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    • The observed slow decay in Type II light curves may not represent pulsar spin-down, but rather decreasing nebular opacity.
    • This decreasing opacity would allow increasing gamma-ray energy to escape the remnant.

    Conclusions:

    • The hypothesis suggests that the "missing" energy in SN 1987A's light curve could be observable as escaping gamma rays.
    • Testing this requires searching for these gamma rays, providing a new method for pulsar detection in supernova remnants.