A dataset provided by the European Space Agency

Name 069310
Title Final measure of the dipolar magnetic field of the first low-B SGR


DOI https://doi.org/10.5270/esa-0221ybq
Author Dr Nanda Rea
Description We have recently discovered the first SGR with a low magnetic field (Rea et al. 2010, Science, 330, 944), SGR 0418+5729, discovered in outburst after it emitted bursts similar to those of magnetars (B<7.5x10^{12} G). This discovery had large implications not only for the magnetar model, but for the pulsars population in general. We have now a tentative measure (at 2.8sigma level) of its period derivative resulting in a B-field =7.1x10^{12} G). We ask now for a final 75ks XMM observation to confirm this detection at >5sigma. This will lead to have a final measure of SGR 0418+5729 dipolar magnetic field, crucial for tuning the magnetar model as well as predict how many "hidden" magnetars there might be within the pulsar population.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-08-25T14:18:08Z/2012-08-26T12:02:07Z
Version 17.56_20190403_1200
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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2013-09-12T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2013-09-12T00:00:00Z, 069310, 17.56_20190403_1200. https://doi.org/10.5270/esa-0221ybq