| Name | 020268 |
| Title | MONITORING TWO QUASI-PERSISTENT X-RAY BINARIES IN QUIESCENCE |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0202680101 |
| DOI | https://doi.org/10.5270/esa-xp5d5v3 |
| Author | European Space Agency |
| Description | We propose to observe the quasi-persistent neutron-star low-mass X-ray binaries KS 1731-260 and MXB 1659-29 once in their quiescent state during Cycle 3 of XMM-Newton. These observations will strongly constrain the time evolution behaviour of the quiescent properties of those systems. In the context of the cooling neutron star model for the quiescent emission in neutron star X-ray transients, our proposed observations will follow the cooling time of the crust and core of the neutron stars in those systems. Our previous XMM-Newton and Chandra observations of both systems have already shown that the crusts of the neutron stars in both systems cooled down rapidly, setting stringent constraints on the structure of the neutron stars. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-02-28T22:41:14Z/2005-03-02T05:01:01Z |
| 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 | 2006-05-26T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006, Monitoring Two Quasi-Persistent X-Ray Binaries In Quiescence, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xp5d5v3 |