2014/11/30 by Włodek Kluźniak, Wlodek Kluzniak, Jean-Pierre Lasota +1
Earth and Planetary Sciences · Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Black hole (networking) #High-pressure geophysics and materials #Luminosity #Millisecond #Millisecond pulsar #Neutron star #Physics #Pulsar #Pulsars and Gravitational Waves Research #X-ray pulsar #astro-ph.HE #astro-ph.SR
paper · pdf · doi:10.1093/mnrasl/slu200
published as MNRAS 448, L43-L47 (2015) · proof-read version, <6 pages
openalex publication_date 2015/01/10 · arxiv created 2015/01/30 · arxiv updated 2015/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Abstract If the ultraluminous source (ULX) M82 X-2 sustains its measured spin-up value of ν = 10-10 \rm s-2, it will become a millisecond pulsar in less than 105 yr. The observed (isotropic) luminosity of 1040 erg s−1 also supports the notion that the neutron star will spin up to a millisecond period upon accreting about 0.1 Mȯ – the reported hard X-ray luminosity of this ULX, together with the spin-up value, implies torques consistent with the accretion disc extending down to the vicinity of the stellar surface, as expected for low values of the stellar dipole magnetic field (B ≲ 109 G). This suggests a new channel of millisecond pulsar formation – in high-mass X-ray binaries – and may have implications for studies of gravitational waves, and possibly for the formation of low-mass black holes through accretion-induced collapse.