| 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(Bvirgul10^14-15 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 |
| Keywords | "period derivative", "emitted bursts", "xray sources", "magnetic fields", "XMM", "powerful emission", "neutron stars powered", "ordinary radio pulsars", "magnetar sgr 0418", "short bursts", "soft gamma repeater", "surface dipolar", "low magnetic field", "magnetar model", "sgr 0418", "SGR 0418+57", "dipolar magnetic field" |
| 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 |