|Title||X-ray aurora of the early magnetic B-type star HR 7355|
|Author||Dr Lidia Oskinova|
|Description||As a decisive experiment to establish whether particle acceleration operates in magnetic hot stars, we propose a joint XMM and NuSTAR observation of the B2V star HR7355. Non-thermal radio emissions have already been detected from HR7355. Our advanced 3-D models predict rotationally modulated non-thermal X-ray emission from polar aurorae. XMM and NuSTAR observations are requested to validate this prediction. Detecting X-ray aurorae will overturn the hitherto accepted theory of X-ray production in early-type magnetic stars. The new data will also provide important insights into the auroral mechanism operating in astronomical objects, from planets to massive stars.|
|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, 2019-11-05T23:00:00Z, 082439, 17.56_20190403_1200. https://doi.org/10.5270/esa-pyzbchx|