|Title||The Wind-Wind Interaction Region and Stellar Wind Geometry of V444 Cyg|
|Author||Ms Jamie Lomax|
|Description||Angular momentum and mass loss from massive binary star systems is poorly constrained; however, eclipsing colliding-wind systems provide useful laboratories in which to study these processes. V444 Cyg is a bright, WN5+O6 colliding-wind system that shows different eclipse behaviors in the hard and soft X-rays. We ask for XMM-Newton observations that, combined with optical spectropolarimetric observations, will significantly improve our understanding of the 3D structure of the winds and wind-wind collision region in V444 Cyg.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2013-07-06T00:00:00Z, 069281, 17.56_20190403_1200. https://doi.org/10.5270/esa-yzg1qo2|