Swift J1818.0-1607 is a radio-loud magnetar that went into outburst in 2020March. Its spin period of 1.36 s and its derivative imply a field strength of4e14 G, a very young age virgul500 years, and a spin down power of 1e36 erg/s, thelargest by far among all magnetars, rivaling those of rotation-powered pulsars(RPPs). Hence Swift J1818.0-1607 may represent the ultimate link between the twopopulations. The source has not reached quiescence yet. Hence, we propose alate-time monitoring campaign to establish its long-term decay trend, reveal thelate-time surface thermal pulse shape and pulsed fraction, and derive theradio-X-ray pulse offset and compare it to the early stages of the outburst, allcrucial elements to place this unique source within the large family of magnetars and RPPs.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2022-04-10T21:44:05Z/2022-10-10T23:03:42Z
Version
20.09_20221024_1724
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 George Younes, 2023, 'The late-outburst X-ray emission of the magnetar Swift J1818.0-1607', 20.09_20221024_1724, European Space Agency, https://doi.org/10.57780/esa-yxbi0lf
