| Proposal ID | 050643 |
| Title | Long term monitoring of the Soft Gamma Repeater SGR 1900+14 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0506430101 |
| DOI | https://doi.org/10.5270/esa-gb1vzho |
| Principal Investigator, PI | Dr Paolo Esposito |
| Abstract | XMM-Newton observed SGR 1900+14 in September 2005, after almost three yearsduring which no bursts were detected from this SGR. The flux was a factor 2dimmer than the typical value, but the long term fading of the persistentemission has been interrupted by the recent burst reactivation of the source, asshowed by a XMM-Newton TOO carried out in April 2006. We propose to perform a 50ks observation to constrain changes in the spectrum, pulsed fraction and lightcurve profile, which are expected in a scenario in which the effects of atwisted magnetosphere are considered, and to establish whether the flux hasreached the unexpected low level suggested by recent Swift snapshotobservations. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-04-08T11:52:08Z/2008-04-09T03:01:44Z |
| 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 | 2009-06-05T00:00:00Z |
| Last Update | 2026-03-04 |
| Keywords | "XMM", "xmm newton", "twisted magnetosphere", "typical value", "burst reactivation", "XMM-Newton", "light curve profile", "sgr 1900", "low level suggested", "persistent emission", "term fading", "SGR 1900+14", "pulsed fraction", "september 2005" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Paolo Esposito, 2009, 'Long term monitoring of the Soft Gamma Repeater SGR 1900+14', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gb1vzho |