Theoretically Motivated Search and Detection of Non-thermal Pulsations from PSRs J1747-2958, J2021+3651, and J1826-1256

Jian Li, Diego F. Torres, Francesco Coti Zelati, Alessandro Papitto, Matthew Kerr, Nanda Rea

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    5 Citations (Scopus)

    Abstract

    © 2018. The American Astronomical Society. All rights reserved. Based on a theoretical selection of pulsars as candidates for detection at X-ray energies, we present an analysis of archival X-ray observations performed 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 regard 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.
    Original languageEnglish
    Article numberL29
    JournalAstrophysical Journal Letters
    Volume868
    DOIs
    Publication statusPublished - 1 Dec 2018

    Keywords

    • pulsars: individual (PSR J1747-2958, PSR J2021+3651, PSR J1826-1256)
    • X-rays: stars

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