|Title||The extreme supergiant X-ray binary XTE J1855 026: the missing link?|
|Author||Prof Jose Miguel Torrejon|
|Description||We propose to use the high throughput and high resolution capabilities of XMM-Newton to perform phase resolved spectroscopy of the extreme supergiant wind accretor XTE J1855 026. This will allow us to study the stellar wind structure and properties of the B supergiant donor through: a) the reconstruction of the wind density stratification in a B0.5Ia luminous star, b) put observational constrains on the radial onset of wind clumping, c) explore the accretion physics at work and its interplay with the wind to explain the episodes of extreme brightness not seen in systems with similar donors.|
|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, 2021-04-21T00:00:00Z, 084463, 18.02_20200221_1200. https://doi.org/esa-[xxxxxxx]|