| Proposal ID | 065169 |
| Title | The fading of the extraordinary low mass X-ray binary EXO 0748-676: Part II |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0651690101 |
| DOI | https://doi.org/10.5270/esa-pitbuzi |
| Principal Investigator, PI | Dr Maria Diaz Trigo |
| Abstract | We propose to continue monitoring the dipping low-mass X-ray binary EXO 0748-676as it moves into quiescence. RXTE first reported its detection at the lowestflux level since the beginning of the RXTE mission in 1996 in pointedobservations during August 2008 (ATel #1736). Swift observations in October 2008confirmed the likely cessation of accretion activity (ATel #1812). The coolingof the neutron star crust has been subsequently monitored with XMM observationsevery 4 months (this proposal, Part I). The last of these observations showsthat the cooling of the crust is still continuing. A further observation of EXO0748-676 is important to determine the cooling curve of the neutron star crust,which has been heated during by more than 20~years of accretion. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-06-17T05:09:49Z/2010-06-18T10:18:25Z |
| 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 | 2011-07-07T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "rxte mission", "2008 atel", "exo 0748 676", "cooling curve", "accretion activity atel", "subsequently monitored", "neutron star crust", "XMM", "lowest flux level" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Maria Diaz Trigo, 2011, 'The fading of the extraordinary low mass X-ray binary EXO 0748-676: Part II', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pitbuzi |