| Name | 080405 |
| Title | X-ray spectroscopy of 10-year-period colliding wind binary WR19 at periastron |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0804050201 |
| DOI | https://doi.org/10.5270/esa-n7aefsb |
| Author | European Space Agency |
| Description | The periastron of the WC5+O9 colliding wind binary WR19 will come in 2017 during the XMM-Newton AO-16 phase. WR19 is a massive binary with a 10.1 yr orbital period with a high eccentric orbit. The X-ray spectrum is the best measure of conditions in the hot postshock gas, and the crucial time for observations is around periastron passage when densities and emitting volume are changing most rapidly. We therefore propose 60ksec observation at periastron. By measuring the X-ray luminosity and the column density, we will derive the mass-loss rates of these stars that were not measured yet at any other wavelengths. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2017-05-27T22:11:43Z/2017-05-28T16:31:44Z |
| 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 | 2018-06-19T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2018, X-Ray Spectroscopy Of 10-Year-Period Colliding Wind Binary Wr19 At Periastron, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-n7aefsb |