Spin-down rate of the transitional millisecond pulsar PSR J1023+0038 in the optical band with Aqueye+

Burtovoi, Aleksandr; Luca, Zampieri; Fiori, Michele; Naletto, Giampiero; Spolon, Alessia; Barbieri, Cesare; Alessandro, Papitto; Filippo, Ambrosino

doi:10.1093/mnrasl/slaa133

We present a timing analysis of the transitional millisecond pulsar PSR J1023+0038 using observations taken between 2018 January and 2020 January with the high time resolution photon counter Aqueye+ mounted at the 1.82 m Copernicus telescope in Asiago. We report the first measurement of the timing solution and the frequency derivative of PSR J1023+0038 based entirely on optical data. The spin-down rate of the pulsar is (−2.53 ± 0.04) × 10−15 Hz2, which is ∼20 per cent slower than that measured from the X-ray observations taken in 2013–2016 and ∼5 per cent faster than that measured in the radio band during the rotation-powered state.

Titolo:	Spin-down rate of the transitional millisecond pulsar PSR J1023+0038 in the optical band with Aqueye+
Autori:	BURTOVOI, ALEKSANDR Luca Zampieri FIORI, MICHELE NALETTO, GIAMPIERO SPOLON, ALESSIA BARBIERI, CESARE Alessandro Papitto Filippo Ambrosino mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2020
Rivista:	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS
Abstract:	We present a timing analysis of the transitional millisecond pulsar PSR J1023+0038 using observations taken between 2018 January and 2020 January with the high time resolution photon counter Aqueye+ mounted at the 1.82 m Copernicus telescope in Asiago. We report the first measurement of the timing solution and the frequency derivative of PSR J1023+0038 based entirely on optical data. The spin-down rate of the pulsar is (−2.53 ± 0.04) × 10−15 Hz2, which is ∼20 per cent slower than that measured from the X-ray observations taken in 2013–2016 and ∼5 per cent faster than that measured in the radio band during the rotation-powered state.
Handle:	http://hdl.handle.net/11577/3354694
Appare nelle tipologie:	01.01 - Articolo in rivista

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