| Proposal ID | 067267 |
| Title | Testing the magnetar model with the first low-B soft gamma repeater |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0672670201 |
| DOI | https://doi.org/10.5270/esa-z8t7ty8 |
| Principal Investigator, PI | Dr Nanda Rea |
| Abstract | Soft gamma repeaters (SGRs) are part of a rapidly increasing group of x-raysources exhibiting sporadic and powerful emission of short bursts and outbursts,believed to be magnetars, i.e. neutron stars powered by extreme magnetic fields(B~10^14-15 Gauss). We have recently discovered an SGR with a low magneticfield, SGR 0418+57, during outburst and after it emitted bursts similar to thoseof magnetars. X-ray observations show that its dipolar magnetic field cannot begreater than 7.5x10^12 Gauss, well in the range of ordinary radio pulsars. Weask here for a joint XMM/Chandra monitoring of the first low-B magnetar SGR0418+57 in order to have a final measure of its period derivative, hence of itsurface dipolar B field. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2011-03-10T03:15:53Z/2011-09-12T11:15:28Z |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2012-10-12T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "period derivative", "magnetic fields", "neutron stars powered", "XMM", "low magnetic field", "surface dipolar", "short bursts", "SGR 0418+57", "emitted bursts", "magnetar model", "powerful emission", "magnetar sgr 0418", "sgr 0418", "xray sources", "dipolar magnetic field", "soft gamma repeater", "ordinary radio pulsars" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Nanda Rea, 2012, 'Testing the magnetar model with the first low-B soft gamma repeater', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-z8t7ty8 |