| Name | 086241 |
| Title | Probing clump accretion onto neutron stars with XMM-Newton |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0862410101 |
| DOI | https://doi.org/10.57780/esa-j7m84mh |
| Author | European Space Agency |
| Description | We propose the continuation of a very successful fulfill program (accepted in AO17 and AO18) aimed at studying the flaring phenomenology of the supergiant fast X-ray transients (SFXTs). Our milestone analysis of all available XMM SFXT observations proved that the XMM data are the best suited to probe the physics of clumpy wind accretion. The current number of observed flares is still limited and more observations are needed to achieve a meaningful statistical sample for each source. 2-5 flares are observed every 20 ks exposure, and thus short XMM fulfill observations provide the best mean to build upon the current database, providing also the required large effective area and good energy resolution to measure of NH and spectral slopes variations within time scales of virgul100 s. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-10-17T20:00:11Z/2021-01-26T05:11:34Z |
| Version | 18.02_20200221_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 | 2022-02-09T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2022, Probing Clump Accretion Onto Neutron Stars With Xmm-Newton, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-j7m84mh |