| Name | 086532 |
| Title | WR140 at apastron - a benchmark for colliding-wind binaries and plasma physics |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0865320201 |
| DOI | https://doi.org/10.57780/esa-5c08xji |
| Author | European Space Agency |
| Description | The X-ray spectrum of the colliding-wind binary WR140 at apastron is produced under benign conditions of minimum density and minimum orbital velocity and forms the initial plasma state from which subsequent evolution occurs. The star.s precise orbit, exceptional X-ray brightness, rich observational history and characteristic X-ray temperature very similar to that of the Perseus Cluster of Galaxies make it the ideal reference for calibration of models of plasmas produced under dynamical and thermodynamical conditions similar to those that hold in a variety of prominent X-ray sources. As well as precise tests of predicted photometry, a joint RGS-HETG high-resolution spectrum will test a predicted emission-line redshift at apastron. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-11-02T22:38:56Z/2020-11-03T22:58:56Z |
| 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 | 2021-11-24T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021, Wr140 At Apastron - A Benchmark For Colliding-Wind Binaries And Plasma Physics, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-5c08xji |