2007/10/05 by A. Papitto, Alessandro Papitto, M. T. Menna +3 · 42 citations
Earth and Planetary Sciences · Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Flux (metallurgy) #High-pressure geophysics and materials #Millisecond #Millisecond pulsar #Neutron star #Physics #Proper motion #Pulsar #Pulsars and Gravitational Waves Research #Pulse (music) #Spin (aerodynamics) #Stars #X-ray pulsar #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2007.12551.x
published in Monthly Notices of the Royal Astronomical Society 383(1), 411-416 (Oxford University Press) · 7 pages, 3 figures, Accepted for publication by MNRAS
arxiv created 2007/10/05 · openalex publication_date 2007/11/27 · arxiv updated 2019/08/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We perform a timing analysis on RXTE data of the accreting millisecond pulsar XTE J1751−305 observed during the 2002 April outburst. After having corrected for Doppler effects on the pulse phases due to the orbital motion of the source, we performed a timing analysis on the phase delays, which gives, for the first time for this source, an estimate of the average spin frequency derivative . We discuss the torque resulting from the spin-up of the neutron star deriving a dynamical estimate of the mass accretion rate and comparing it with the one obtained from X-ray flux. Constraints on the distance to the source are discussed, leading to a lower limit of ∼ 6.7 kpc.