The issue of the X-ray emission from Wolf-Rayet (WR) stars is far from beingelucidated. Thanks to previous observations, we know indeed that even thoughseveral WN-type WR are detected in X-rays, it appears that single WC stars arenot detected, most probably because of the strong opacity of the stellar wind.However, significant X-ray emission is expected if WC stars are part of acolliding-wind binary system. In the case of dust-making WR stars (WC-type withdense stellar winds), dust is most probably produced in a wind-wind interactionregion. Performed and forthcoming interferometric observations in thenear-infrared (VLTI, PI: De Becker) will help us to investigate the multiplicityof WR106.(abridged)
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-09-07T04:51:36Z/2012-09-07T11:07:29Z
Version
17.56_20190403_1200
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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.
European Space Agency, Dr Michael De Becker, 2013, 'XMM-Newton observation of the dust-making Wolf-Rayet star WR106', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3dt2dl7
