| Name | 082442 |
| Title | Crust cooling of the neutron star in EXO 0748-676 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824420101 |
| DOI | https://doi.org/10.5270/esa-3hlexqc |
| Author | European Space Agency |
| Description | We propose a 70 ksec observation of the neutron-star transient low-mass X-ray binary EXO 0748- 676. Neutron-star crusts provide the unique opportunity to study the extreme conditions introduced by very high density matter. The density in a neutron-star crust increases by eight orders of magnitude over only virgul1 km, from virgul1e6 g/cm3 at the surface to virgul1e14 g/cm3 at the crust-core boundary. Accretion outbursts can heat neutron-star crusts which cool once the outburst ceases. Monitoring this cooling evolution provides an insight into the properties of the neutron-star crusts. Heat from deep in the crust propagates to the surface on time scales of about a decade, thus our requested observation, virgul10 yr after the end of outburst, will enable us to study the property of very dense matter (virgul1e12-1e14 g/cm^3 ). |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-05-02T08:09:18Z/2018-05-03T06:05:58Z |
| 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 | 2019-05-23T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2019, Crust Cooling Of The Neutron Star In Exo 0748-676, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3hlexqc |