| Proposal ID | 090234 |
| Title | Is PSR J1320-5359 heated by magnetic field decay? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0902340101 |
| DOI | https://doi.org/10.57780/esa-ci2dzdf |
| Principal Investigator, PI | Dr Bettina Posselt |
| Abstract | Pulsar J1320-5359 was recently discovered to have one of the highest evermeasured long-term braking indices (n> 100). This is far in excess over thecanonical value of 3 that one would expect if pulsars slow down their rotationas rotating magnetic dipoles. Although some variation of n (on the order of afew) around 3 has been seen before, such extremely large braking indices are anovel finding, and their physical origin is unclear. A promising hypothesissuggests magnetic field decay as explanation. This can be observationallychecked since magnetic field decay should also manifest itself in an unusuallyhigh thermal X-ray luminosity. Based on several properties, PSR J1320-5359 isthe best target to test whether the magnetic field decay hypothesis can explain the high braking indices. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-08-13T03:34:57Z/2022-08-13T18:18:17Z |
| Version | 20.08_20220509_1852 |
| 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 | 2023-08-27T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "rotating magnetic dipoles", "psr j1320 5359", "canonical value", "term braking indices", "observationally checked", "magnetic field decay", "thermal xray luminosity", "novel finding", "pulsar j1320 5359", "braking indices", "pulsars slow", "physical origin", "promising hypothesis" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Bettina Posselt, 2023, 'Is PSR J1320-5359 heated by magnetic field decay?', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-ci2dzdf |