| Proposal ID | 080494 |
| Title | Raiders of the low luminosity state in Be X-ray transients |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0804940201 |
| DOI | https://doi.org/10.5270/esa-9fkxkkf |
| Principal Investigator, PI | Mrs Alicia Rouco Escorial |
| Abstract | We propose to observe any Be X-ray transient after its next type-II outburstduring a potential quasi-stable low-luminosity plateau phase that has beenidentified in several sources. The origin of this plateau phase is still unclearand could be due to the cooling of an accretion heated neutron star crust or dueto residual accretion onto the neutron star surface at very low rates. Crustalcooling has been well- studied in low magnetic field neutron stars where themagnetic field does not play a r^ant role, but not much is known about howmuch this process could be affected by the high magnetic fields found of theneutron stars in Be X-ray transients. Our proposed observation will be thesecond one done in this enigmatic plateau state using high quality spectral and timing data. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-01-23T11:48:05Z/2018-01-23T20:31:25Z |
| 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 | 2019-02-09T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "neutron star surface", "xray transients", "magnetic fields", "neutron stars", "xray transient", "magnetic field", "enigmatic plateau", "crustal cooling", "type ii outburst", "plateau phase", "residual accretion", "relevant role", "quality spectral", "low rates", "low luminosity" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mrs Alicia Rouco Escorial, 2019, 'Raiders of the low luminosity state in Be X-ray transients', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9fkxkkf |