|Title||Continuing the Long-Term Monitoring of the CCO Pulsar 1E1207.4-5209|
|Author||Prof Jules Halpern|
|Description||The CCO pulsar 1E1207.4-5209 is an extremely stable rotator, with a weak B-field and a small spin-down rate that has remained constant to <1% over 14.5 years. It is a unique NS whose B-field is measured as ~9.e10 G, both spectroscopically and through timing. Yet the properties of CCO pulsars cannot be explained unless they have strong crustal magnetic fields, perhaps buried by SN fall-back material. We propose a modest program that will continue precise timing and spectroscopy of 1E1207.4-5209 to monitor for a change in B-field that may diffuse through or break the crust. These observations will also be very sensitive to torque noise due to minute levels of accretion from a hypothetical fall-back disk.|
|Publication||The First Glitch in a Central Compact Object Pulsar: 1E 1207.4--5209 . Gotthelf, E. V., Halpern, J. P., . ApJ . 866-154 . 2018 . 2018ApJ...866..154G ,
The Timing Behavior of the Central Compact Object Pulsar 1E 1207.4-5209 . Gotthelf, E. V., Halpern, J. P., . ApJ . 900-159 . 2020 . 2020ApJ...900..159G ,
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|Mission Description||The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2017-08-10T22:00:00Z, 078000, 17.56_20190403_1200. https://doi.org/10.5270/esa-cam9gfg|