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- W2899299483 abstract "We use the Bayesian approach to write the posterior probability density for the three-dimensional velocity of a pulsar and for its kinematic age. As a prior, we use the bimodal velocity distribution found in a recent article by Verbunt, Igoshev & Cator (2017). When we compare the kinematic ages with spin-down ages, we find that in general, they agree with each other. In particular, maximum likelihood analysis sets the lower limit for the exponential magnetic field decay timescale at $8$ Myr with a slight preference of $t_mathrm{dec} approx 12$ Myr and compatible with no decay at all. One of the objects in the study, pulsar B0950+08 has kinematic and cooling ages $approx 2$ Myr which is in strong contradiction with its spin-down age $tauapprox 17$ Myr. The 68 per cent credible range for the kinematic age is 1.2--8.0 Myr. We conclude that the most probable explanation for this contradiction is a combination of magnetic field decay and long initial period. Further timing, UV and X-ray observations of B0950+08 are required to constrain its origin and evolution better." @default.
- W2899299483 created "2018-11-09" @default.
- W2899299483 creator A5085500734 @default.
- W2899299483 date "2018-10-31" @default.
- W2899299483 modified "2023-09-23" @default.
- W2899299483 title "Ages of radio pulsar: long-term magnetic field evolution" @default.
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- W2899299483 doi "https://doi.org/10.1093/mnras/sty2945" @default.
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