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A Radio Pulsar/X-ray Binary Link

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arxiv 0905.3397 v2 pith:CL2DYTQH submitted 2009-05-20 astro-ph.HE astro-ph.SR

A Radio Pulsar/X-ray Binary Link

classification astro-ph.HE astro-ph.SR
keywords radiobeenbinarymillisecondcompanionlmxblow-massobservations
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Radio pulsars with millisecond spin periods are thought to have been spun up by transfer of matter and angular momentum from a low-mass companion star during an X-ray-emitting phase. The spin periods of the neutron stars in several such low-mass X-ray binary (LMXB) systems have been shown to be in the millisecond regime, but no radio pulsations have been detected. Here we report on detection and follow-up observations of a nearby radio millisecond pulsar (MSP) in a circular binary orbit with an optically identified companion star. Optical observations indicate that an accretion disk was present in this system within the last decade. Our optical data show no evidence that one exists today, suggesting that the radio MSP has turned on after a recent LMXB phase.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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    astro-ph.HE 2026-07 accept novelty 6.0

    Atlas of 205 non-recycled southern pulsars at 140–170 MHz from MWA SMART data, with profiles, DMs, RMs, fluxes and public data products for SKA-Low.

  2. Understanding the Neutron Star Population with the SKAO Telescopes

    astro-ph.HE 2026-07 accept novelty 3.5

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  3. Pulsars in Globular Clusters With the SKAO

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    SKA-MID and SKA-LOW are predicted to discover 150–1700 new pulsars in Galactic globular clusters, more than doubling the current population of 345.