Theoretically motivated search and detection of non-thermal pulsations from PSRs J1747-2958, J2021+3651, and J1826-1256

Abstract

Based on a theoretical selection of pulsars as candidates for detection at X-ray energies, we present an analysis of archival X-ray observations done with Chandra and XMM-Newton of PSR J1747-2958 (the pulsar in the "Mouse" nebula), PSR J2021+3651 (the pulsar in the "Dragonfly" nebula), and PSR J1826-1256. X-ray pulsations from PSR J1747-2958 and PSR J1826-1256 are detected for the first time, and a previously reported hint of an X-ray pulsation from PSR J2021+3651 is confirmed with a higher significance. We analyze these pulsars' spectra in regards to the theoretically predicted energy distribution, finding a remarkable agreement, and provide here a refined calculation of the model parameters taking into account the newly derived X-ray spectral data.

arXiv comment14 pages, 4 figures, 1 table; ApJ Letters in press

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Cited by in corpus (7)

• Pulsating in unison at optical and X-ray energies: simultaneous high-time resolution observations of the transitional millisecond pulsar PSR J1023+0038
• Synchro-curvature modelling of the multi-frequency non-thermal emission of pulsars
• Spectral characterization of the non-thermal X-ray emission of gamma-ray pulsars
• Synchro-curvature emitting regions in high-energy pulsar models
• X-ray studies of the gamma-ray pulsar J1826-1256 and its pulsar wind nebula with Chandra and XMM-Newton
• A novel approach for the analysis of the geometry involved in determining light curves of pulsars
• Exploring the possible gluon condensation signature in gamma-ray emission from pulsars