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Eccentricities of pulsar orbits


tex2html_wrap_inline3922   Tidal damping would make orbits circular
tex2html_wrap_inline3922   But buffeting from the quadrupole moments induced by convection, causes a finite eccentricity
tex2html_wrap_inline3922   Analogous to pendulum buffeting in air
tex2html_wrap_inline3922   Eccentricity is ``frozen'' when mass transfer ceases


Figure 47: Solid line -- the predicted median eccentricity for pulsars recycled by stable mass transfer from a Roche-lobe-filling, low-mass red giant. Dotted lines -- 95 per cent of the measured eccentricities for recycled pulsars are expected to lie within these [29, 30]. Circles -- low-mass binary pulsars. Squares - upper limits on measured eccentricities. Crosses - high-mass binary pulsars. Triangles - intermediate-mass binary pulsars. Dashed lines - approximate limits obtainable on eccentricities for timing residuals of tex2html_wrap_inline3912 s and tex2html_wrap_inline3914 s.

Jon Bell
Thu Dec 19 15:15:11 GMT 1996