SIMBAD references

2022MNRAS.513.6219P - Mon. Not. R. Astron. Soc., 513, 6219-6224 (2022/July-2)

Study on the magnetic field strength of NGC 300 ULX1.


Abstract (from CDS):

NGC 300 ULX1 is a pulsating ultraluminous X-ray source (PULX) with the longest spin period of P ≃31.6 s and a high spin-up rate of {dot}P ≃-5.56 ×10–7 s s–1 that is ever seen in the confirmed PULXs. In this paper, the inferred magnetic field of NGC 300 ULX1 is ∼3.0 ×1014 G using the recent observed parameters after its first detection of pulsations. According to the evolved simulation of the magnetic field and the spin period, it will become a recycled pulsar or a millisecond pulsar under the conditions of the companion mass and the accretion rate limitation. We suggest that NGC 300 ULX1 is an accreting magnetar accounting for its super Eddington luminosity. We also propose that there might be other accreting magnetars in the confirmed PULXs. Such PULXs will be helpful for understanding the magnetar evolution and the millisecond pulsar formation whose magnetic field is stronger than ∼109 G.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: magnetic field - stars: neutron - pulsars: individual: NGC 300 ULX1 - X-rays: binaries

Simbad objects: 7

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