| Name | 055472 |
| Title | Observing Supergiant Fast X-ray Transients in quiescence |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0554720101 |
| DOI | https://doi.org/10.5270/esa-ec03ovo |
| Author | European Space Agency |
| Description | Supergiant Fast X-ray Transients (SFXTs) are a new class of highly variable hard X-ray sources in our galaxy. We propose to perform the first detailed study of the quiescent state of two SFTXs by carrying out XMM observations of IGR J16479-4514 and XTE J1739-302 sources. We will search for pulsations, low-level flaring activity and column density variations, and measure the X-ray spectrum. We will address some key predictions of a recently proposed scenario in which accretion onto the neutron stars of SFXTs is gated by an extremely strong (magnetar-like) magnetic field. SFXTs might thus offer the first opportunity to detect magnetars hosted in binary star systems. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-10-01T18:09:05Z/2008-10-02T06:07:39Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2009-11-08T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2009, Observing Supergiant Fast X-Ray Transients In Quiescence, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ec03ovo |