| Proposal ID | 040660 |
| Title | Long term monitoring of SGR 1806-20 after the Giant Flare |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406600301 |
| DOI | https://doi.org/10.5270/esa-7l516oq |
| Principal Investigator, PI | Dr Sandro Mereghetti |
| Abstract | SGR 1806-20 has recently emitted the most powerful Giant Flare ever observedfrom a Soft Gamma-ray Repeater. This involved a large scale restructuring of themagnetosphere leading to observable variations in the properties of itspersistent X-ray emission. Comparison of the pre-flare XMM-Newton observationswith two recent TOO pointings support a magnetar scenario in which the effectsof a twisted magnetosphere are considered. We propose to continue the monitoringof SGR 1806-20 to study the long term effects of the Giant Flare and how thesource evolves toward quiescence after this once-in-a-lifetime event. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-04-04T06:42:02Z/2006-09-10T19:05:45Z |
| 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 | 2007-10-13T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "XMM", "magnetosphere leading", "scale restructuring", "XMM-Newton", "pointings support", "observable variations", "source evolves", "powerful giant flare", "persistent xray emission", "term effects", "giant flare", "twisted magnetosphere", "magnetar scenario", "sgr 1806" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Sandro Mereghetti, 2007, 'Long term monitoring of SGR 1806-20 after the Giant Flare', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-7l516oq |