| Proposal ID | 082183 |
| Title | The nature of the compact accretor in exotic X-ray binaries |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0821830101 |
| DOI | https://doi.org/10.5270/esa-n8fzbqz |
| Principal Investigator, PI | Dr nathalie degenaar |
| Abstract | Very-faint X-ray transients undergo accretion outbursts with a peak X-rayluminosity well below that of other black hole and neutron star low-mass X-raybinaries. These intriguing objects allow us to probe new parameter space forbinary evolution models, accretion flows, and neutron star physics. We proposeto study 2 very-faint X-ray transients in quiescence with XMM-Newton (100 ks intotal) and HST (3 orbits in total). The aim of these observations are to i)elucidate the nature of their compact primary, ii) test if the X-ray spectralevolution during outburst serves as a diagnostic to separate neutron stars fromblack holes and iii) provide the first detailed characterisation of thequiescent emission of very-faint X-ray transients. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-03-29T13:28:10Z/2019-04-09T14:28:27Z |
| 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 | 2020-05-14T22:00:00Z |
| Keywords | "outburst serves", "xray spectral evolution", "peak xray luminosity", "faint xray transients", "quiescent emission", "ii test", "XMM-Newton", "xmm newton", "parameter space", "neutron star physics", "binary evolution models", "accretion outburst", "compact accretor", "accretion flows", "separate neutron stars", "XMM", "compact primary", "intriguing objects", "exotic xray binary", "HST" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr nathalie degenaar, 2020, 'The nature of the compact accretor in exotic X-ray binaries', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-n8fzbqz |