| Proposal ID | 086299 |
| Title | Monitoring the Unexpected Glitches of CCO Pulsars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0862990201 |
| DOI | https://doi.org/10.57780/esa-dw8g5yq |
| Principal Investigator, PI | Prof Jules Halpern |
| Abstract | CCO pulsars are stable rotators with weak dipole B-fields and small spin-downrates. We have been timing two CCO pulsars for 20 years. In 2016 there was aglitch in 1E 1207.4-5209, which is unprecedented for a pulsar with such a smallspin-down rate, and has profound implications for the B-field evolution of CCOsand the mechanism(s) that trigger glitches. We must continue to time this eventto distinguish between a very slow glitch recovery and a permanent, largeincrease in its spin-down rate. We see similar features in recent timing of PSRJ0821-4300 in Puppis A, and did initiate in October 2019 a new phase-connectedtiming solution to ensure a precise cycle count that will resolve the nature ofits timing anomaly. This proposal is also to continue monitoring PSR J0821-4300. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-06-22T02:55:00Z/2020-12-25T14:22:31Z |
| Version | 21.51_20241115_1113 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2022-01-26T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "stable rotators", "precise cycle count", "psr j0821 4300", "cco pulsars", "weak dipole", "slow glitch recovery", "field evolution", "phase connected", "trigger glitches", "profound implications", "1e 1207" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Jules Halpern, 2022, 'Monitoring the Unexpected Glitches of CCO Pulsars', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-dw8g5yq |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |