| Proposal ID | 074197 |
| Title | The quiescent emission of 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=0741970201 |
| DOI | https://doi.org/10.5270/esa-gegu7nf |
| 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($Bsim10^{14}-10^{15}$ G). We have recently discovered the first SGR with a lowmagnetic field (Rea et al. 2010, Science, 330, 944; Rea et al. 2013, ApJ 770,65), SGR 0418+5729 discovered in outburst after it emitted bursts similar tothose of magnetars. We ask for a 120,ks XMM observation to measure SGR 0418+5729s quiescent flux and surface temperature, crucial for tuning the magnetar modelas well as predict how many hidden magnetars there might be within the pulsarpopulation (abridged). |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-08-13T21:26:34Z/2014-08-18T11:16:46Z |
| 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 | 2015-10-07T22:00:00Z |
| Keywords | "sgr 0418", "powerful emission", "XMM", "emitted bursts", "magnetar model", "short bursts", "magnetic fields", "apj 770", "SGR 0418+5729", "xray sources", "surface temperature", "quiescent flux", "bsim10 ^{", "quiescent emission", "soft gamma repeater", "pulsar population abridged", "neutron stars powered" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Nanda Rea, 2015, 'The quiescent emission of the first low-B soft gamma repeater', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-gegu7nf |