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- W2990879123 abstract "In the current work we explore the applicability of standard theoretical models of accretion to the observed properties of M51 ULX-7. The spin-up rate and observed X-ray luminosity are evidence of a neutron star with a surface magnetic field of $2-7times10^{13}$ G, rotating near equilibrium. Analysis of the X-ray light-curve of the system (Swift/XRT data) reveals the presence of a $sim$39 d super-orbital period. We argue that the super-orbital periodicity is due to disc precession, and that material is accreted onto the neutron star at a constant rate throughout it. Moreover, by attributing this modulation to the free precession of the neutron star we estimate a surface magnetic field strength of $3-4times10^{13}$ G. The agreement of these two independent estimates provide strong constraints on the surface polar magnetic field strength of the neutron star." @default.
- W2990879123 created "2019-12-05" @default.
- W2990879123 creator A5004465093 @default.
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- W2990879123 creator A5076772982 @default.
- W2990879123 creator A5078705262 @default.
- W2990879123 date "2019-12-11" @default.
- W2990879123 modified "2023-10-02" @default.
- W2990879123 title "M51 ULX-7: superorbital periodicity and constraints on the neutron star magnetic field" @default.
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- W2990879123 doi "https://doi.org/10.1093/mnras/stz3298" @default.
- W2990879123 hasPublicationYear "2019" @default.
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