SIMBAD references

2019MNRAS.485L.109Z - Mon. Not. R. Astron. Soc., 485, L109-L113 (2019/May-1)

Precise optical timing of PSR J1023+0038, the first millisecond pulsar detected with Aqueye+ in Asiago.

ZAMPIERI L., BURTOVOI A., FIORI M., NALETTO G., SPOLON A., BARBIERI C., PAPITTO A. and AMBROSINO F.

Abstract (from CDS):

We report the first detection of an optical millisecond pulsar with the fast photon counter Aqueye+ in Asiago. This is an independent confirmation of the detection of millisecond pulsations from PSR J1023+0038 obtained with SiFAP at the Telescopio Nazionale Galileo. We observed the transitional millisecond pulsar PSR J1023+0038 with Aqueye+ mounted at the Copernicus telescope in 2018 January. Highly significant pulsations were detected. The rotational period is in agreement with the value extrapolated from the X-ray ephemeris, while the time of passage at the ascending node is shifted by 11.55 ± 0.08 s from the value predicted using the orbital period from the X-rays. An independent optical timing solution is derived over a baseline of a few days that has an accuracy of ∼0.007 in pulse phase (∼12 µs in time). This level of precision is needed to derive an accurate coherent timing solution for the pulsar and to search for possible phase shifts between the optical and X-ray pulses using future simultaneous X-ray and optical observations.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - stars: neutron - pulsars: general - pulsars: individual: PSR J1023+0038 - X-rays: binaries

Simbad objects: 6

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2021.06.16-04:45:52

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