High-Energy Astrophysics American and Soviet Perspectives/Proceedings from the U.S.-U.S.S.R. Workshop on High-Energy Astrophysics (1991) / Chapter Skim
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ON THE EVOLUTION OF PULSARS
ON THE EVOLUTION OF PULSARS
Pages 9-13
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From page 9... ...
presented data on the angle X between the axis of rotation and the magnetic dipole awns, determined from polarization observations. Such a complete catalogue makes it possible to carter out a detailed comparison of our theoretical results with the observed distribution of radio pulsars over the angle X
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From page 10... ...
, over the magnetic field B:2 = B/10~2 Gauss and over the slope X Of the axes (Beskin e!
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From page 11... ...
must depend wealthy on the AD value, and the distribution over X must be approximately equiprobable. Indeed, if we consider only pulsars with Q < 1, then, as shown in Figure 3, their distn~udon over X for ED < 2 million years and word > 2 million years practically coincide, the mean value of X even somewhat increasing with time.
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From page 12... ...
The presence of plasma in pulsar magnetosphere follows from the very fact of the existence of observed powerful coherent radio emission of pulsars, and the rotation deceleration is determined by the ponderomotive action of current leading to an increase with time of the slope of axes for each individual pulsar. We can see that the conclusions of this theory are in satisfactory agreement with observations.
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From page 13... ...
New obse~vations which would promote direct estimation of the value dX/dt for individual radio pulsars would be, of course, of great interest. REFERENCES Beskin, V.S., NV.
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