Simultaneous broadband observations and high-resolution X-ray spectroscopy of the transitional millisecond pulsar PSR J1023+0038

Abstract

We report on the first simultaneous XMM-Newton, NuSTAR and Swift observations of the transitional millisecond pulsar PSR J1023+0038 in the X-ray active state. Our multi-wavelength campaign allowed us to investigate with unprecedented detail possible spectral variability over a broad energy range in the X-rays, as well as correlations and lags among emissions in different bands. The soft and hard X-ray emissions are significantly correlated, with no lags between the two bands. On the other hand, the X-ray emission does not correlate with the UV emission. We refine our model for the observed mode switching in terms of rapid transitions between a weak propeller regime and a rotation-powered radio pulsar state, and report on a detailed high-resolution X-ray spectroscopy using all XMM-Newton Reflection Grating Spectrometer data acquired since 2013. We discuss our results in the context of the recent discoveries on the system and of the state of the art simulations on transitional millisecond pulsars, and show how the properties of the narrow emission lines in the soft X-ray spectrum are consistent with an origin within the accretion disc.

arXiv comment13 pages, 5 figures, accepted for publication in A&A

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Cited by in corpus (18)

• Transitional millisecond pulsars
• Pulsating in unison at optical and X-ray energies: simultaneous high-time resolution observations of the transitional millisecond pulsar PSR J1023+0038
• Accreting pulsars: mixing-up accretion phases in transitional systems
• Pulsar wind-heated accretion disk and the origin of modes in transitional millisecond pulsar PSR J1023+0038
• Prolonged sub-luminous state of the new transitional pulsar candidate CXOU J110926.4-650224
• Precise optical timing of PSR J1023+0038, the first millisecond pulsar detected with Aqueye+ in Asiago
• Matter ejections behind the highs and lows of the transitional millisecond pulsar PSR J1023+0038
• The permanent ellipticity of the neutron star in PSR J1023+0038
• Probing X-ray emission in different modes of PSR J1023+0038 with a radio pulsar scenario
• Investigating the origin of optical and X-ray pulsations of the transitional millisecond pulsar PSR J1023+0038
• UV and X-ray pulse amplitude variability in the transitional millisecond pulsar PSR J1023+0038
• Peering at the outflow mechanisms in the transitional pulsar PSR J1023+0038: simultaneous VLT, XMM-Newton, and Swift high-time resolution observations
• Simultaneous X-ray and radio observations of the transitional millisecond pulsar candidate CXOU J110926.4-650224. The discovery of a variable radio counterpart
• Polarized multiwavelength emission from pulsar wind - accretion disk interaction in a transitional millisecond pulsar
• X-ray study of high-and-low luminosity modes and peculiar low-soft-and-hard activity in the transitional pulsar XSS J12270-4859
• Hydrodynamical simulations of wind interaction in spider systems : A step toward understanding transitional millisecond pulsars
• Detection of low-luminosity X-ray pulsations from the accreting millisecond pulsar IGR J17511-3057: An ever-thinning thread between bright accretion and sub-luminous states
• Measuring accretion disc properties in the transitional millisecond pulsar PSR J1023+0038 using XMM-Newton, NuSTAR, NICER and Chandra