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When Will a Pulsar in Supernova 1987a Be Seen?
F. Curtis Michel, C. F. Kennel and William A. Fowler
New Series, Vol. 238, No. 4829 (Nov. 13, 1987), pp. 938-940
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1700929
Page Count: 3
You can always find the topics here!Topics: Pulsars, Supernovae, Gamma rays, Nebulae, Magnetic fields, Radioactive decay, Light curves, Luminosity, Photons, Electrons
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The means by which a pulsar might be detected in the remnant of supernova 1987a in the Large Magelanic Cloud is examined. One possibility is that the slower-than-radioactive decay typically seen in the type II light curves is itself the sign of powering by the underlying pulsar, with the decline representing not the spinning down of the pulsar but rather the declining nebular opacity that would allow increasing amounts of the energy to escape as gamma rays. The test of this hypothesis (if the supernova conforms to type II expectations) would be to look for the ``missing'' energy in the form of those gamma rays that escape from the remnant instead of powering it.
Science © 1987 American Association for the Advancement of Science