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Table 2

Numerical values used to evaluate the hypothesis of a quasi-periodicity induced by the precession of the periastron of PSR 1931+24.

Name Notation Value

Rotation period of the periapsis P per 70 days
Orbital period P orb 7.8 min
Semi-major axis a 105 km = 2.5Rlc
Eccentricity e 0 < e < 0.65

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