The 3.82s AXP in the SNR CTB 37B is among the youngest and most energeticmagnetars, with a spin-down power up to 7.4E34 erg/s. A recent NuSTARobservation reveals hard X-ray emission above 10 keV. We propose to measure itshard spectrum with sufficient accuracy to apply the Beloborodov e-/e+ outflowmodel and to characterize its >10 keV pulsed emission, to study the emissiongeometry. We also propose to continue monitoring its spin-down rate, whichvaries by a factor of 2. The most energetic magnetars are SGRs, and a markedincrease in their spin-down torque often precedes an outburst. By analogy withSGR/AXP 1E 1547.0-5408, the magnetar with the largest spin-down power, and mostsimilar to the AXP in CTB 37B, we may be observing the behavior of an SGR before it outburst.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2016-09-23T20:30:08Z/2017-02-22T14:20:39Z
Version
17.56_20190403_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, 2018, 'THE ENERGETIC MAGNETAR IN HESS J1713-381/CTB 37B', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ut4t0ya
