| Proposal ID | 050214 |
| Title | SGR 1627-41: a transient Soft Gamma-ray Repeater |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502140101 |
| DOI | https://doi.org/10.5270/esa-sxsqhwz |
| Principal Investigator, PI | Dr Sandro Mereghetti |
| Abstract | Soft Gamma-ray Repeaters were the first class of X-ray sources believed to hostmagnetars, i.e. isolated neutron stars with surface magnetic fields of10^14-10^15 G. SGR 1627-41 is the only known SGR with a transient X-raycounterpart. After a single bursting episode, its persistent X-ray luminositymonotonically decreased from 1998 to 2004 with an overall variation of a factorgreater than 20, the largest ever observed in a SGR. We propose to observe againSGR 1627-41 with XMM-Newton EPIC to establish whether the flux has reached astable level and to obtain the best quality spectrum for a SGR in an unique lowluminosity state. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-02-12T15:41:12Z/2008-02-13T19:09:44Z |
| 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 | 2009-03-12T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "quality spectrum", "xmm newton epic", "XMM-Newton", "sgr 1627", "isolated neutron stars", "overall variation", "transient xray counterpart", "xray sources", "EPIC", "stable level", "single bursting episode", "surface magnetic fields", "low luminosity" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Sandro Mereghetti, 2009, 'SGR 1627-41: a transient Soft Gamma-ray Repeater', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sxsqhwz |