CCO pulsars are stable rotators with weak dipole B-fields and small spin-downrates. Old radio pulsars with similar spin parameters as CCOs are never seen toglitch. However, the CCOs are much younger than their timing ages, and we havediscovered the first CCO glitch, in our X-ray monitoring of 1E 1207.4-5209. CCOsare theorized to have strong, buried crustal B-fields that will diffuse out in<1 Myr. The detection of a glitch therefore supports a recent conjecture thatthey could be triggered by the diffusion of these strong fields. We propose tocontinue timing 1E 1207.4-5209, to verify the unexpected large change in itspost-glitch spin-down rate, and to monitor the CCO in Puppis A for similarglitches. These observations may allow a first measurement of NS surface magnetic field growth
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2019-07-09T23:02:46Z/2020-01-16T13:50:15Z
Version
18.02_20200221_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr Eric GOTTHELF, 2021, 'The Extraordinary Glitch Behaviour of CCO Pulsar 1E 1207.4-5209', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-8ijtzij
