No Measurable Changes in Radio and X-Ray Emission Surrounding Glitches in the Young Pulsar PSR J2229+6114
Year: 2026
Type: article
Abstract: We present our first result from an ongoing pulsar glitch monitoring campaign at the Canadian Hydrogen Intensity Mapping Experiment (CHIME), in which we analyzed the radio and X-ray emission surrounding four glitches in PSR J2229+6114. Using daily CHIME observations, we detected a glitch in PSR J2229+6114 in near-real time and triggered an X-ray follow-up with the Nuclear Spectroscopic Telescope Array (NuSTAR) two days after the glitch. We identified three additional glitch events in archival CHIME/Pulsar observations that coincided with an independent X-ray observing campaign with the Neutron star Interior Composition Explorer (NICER). Our data show there is no measurable change in the source’s X-ray and radio emission during the four glitch events, in stark contrast to the postglitch activity in high-magnetic-field, rotation-powered pulsars (RPPs), which have been observed to exhibit magnetar-like X-ray outbursts immediately after large glitches. Those high-magnetic-field (high- B ) RPPs are considered transitional objects between ordinary RPPs and magnetars, thereby leading to a unifying neutron star model in which the inferred dipolar surface magnetic field strength serves as a unifying parameter. However, such a model remains challenged, in part, by the lack of constraints near the low- B end of the high- B regime, and our result provides additional evidence that magnetar-like postglitch activity is likely more common among high- B RPPs.
Source: The Astrophysical Journal
Institutions: McGill University, University of Amsterdam, Netherlands Institute for Radio Astronomy, University of British Columbia, University of Toronto, West Virginia University, University of Montana, National Centre for Radio Astrophysics, Curtin University, Massachusetts Institute of Technology
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,499
Funders: National Science Foundation, National Aeronautics and Space Administration, Canadian Institute for Advanced Research, McGill University, Space Telescope Science Institute, European Commission, Universiteit van Amsterdam, Canada Excellence Research Chairs, Government of Canada, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, University of British Columbia, McGill Space Institute, Natural Sciences and Engineering Research Council of Canada, Fonds de recherche du Québec – Nature et technologies
Awards: G1908529863, G1979407794, G2614460161, WoU-MMA: Pulsar Timing Arrays Around the World CHIME in on Gravitational Waves, G433322167, AstroFlash: probing the extremes of the Universe at high time and spatial resolution, G5180320897, G5539312340, G5622021303, G58316358, G6273510985, G6332097519, Strengthening Gravitational-Wave and Pulsar Science with the CHIME Telescope, G7166214817, G7542343701
OpenAlex ID: W7161137521