Figure - available via license: Creative Commons Attribution 4.0 International
Content may be subject to copyright.
Source publication
This study introduces the concepts of mass ratio order of magnitude and synchronous orbit radius ratio (i.e., the cube root of the product of the mass ratio and the square of the rotation period ratio) of systems (the ratio refers to secondary/primary), and investigates the relationship between the semi-major axes and synchronous orbit radius ratio...
Contexts in source publication
Context 1
... orbital period derivative and spin period derivative data of such pulsars are shown in Table 5. The spin period, orbital period and eccentricity data of the first-born pulsars in known eccentric double neutron star binaries are shown in Table 6, and the orbital period derivative and spin period derivative data of pulsars in such binaries are shown in Table 7. The eccentric millisecond pulsar PSR J1903+0327 with known parameters as mentioned above and its companion were once components of a hierarchical triple system 114 , hence, we did not select its data. ...Context 2
... /4π 2 into Eq. (12) and taking the time derivative of the resulting equation (assuming that the masses of the components are constant over time) in an eccentric system provides the following equation: Table 7 shows the data collected for known eccentric double neutron star binaries, mainly including the orbital period derivatives and spin period derivatives of pulsars. Fig. 1(c) shows that PSR J0737-3039, an eccentric double neutron star binary, obeys Eq. (12), and its orbital period derivative can be calculated using Eq. ...Context 3
... with the masses, spin periods, spin period derivatives, and the power-law exponent and coefficient (Eq. (5)); the orbital decay rate obtained is −5.29 × 10 −12 , which is greater than the observed value −1.25 × 10 −12 listed in Table 7. This difference may reflect the change in the mass of components. ...