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Quasi-sinusoidal oscillations of the angular velocity of pulsars

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Abstract

We study the oscillations of the angular velocity of pulsars, obtaining an equation for the angular velocity and its derivative taking account of the curvature of vortices. We show that this equation has a quasisinusoidal solution and find the period of these oscillations. We show that the estimates for the value of the periods for various models of neutron stars give quantities of the order of tens of days, which is in agreement with the observations of the quasi-periodic oscillations and fluctuations of the angular velocity of pulsars.

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Authors
  1. D. M. Sedrakyan
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  2. K. M. Shakhabasyan
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  3. M. V. Airapetyan
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Translated fromAstrofizika, Vol. 38, No. 2, 1995.

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Sedrakyan, D.M., Shakhabasyan, K.M. & Airapetyan, M.V. Quasi-sinusoidal oscillations of the angular velocity of pulsars. Astrophysics 38, 145–151 (1995). https://doi.org/10.1007/BF02048589

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  • DOI: https://doi.org/10.1007/BF02048589

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