|Title||The outer atmospheres of flare stars discovered with GALEX in the near-UV|
|Author||Dr Beate Stelzer|
|Description||Magnetic activity produces copious UV and X-ray emission in the chromosphere, transition region and corona of late-type stars. Both types of radiation are believed to be crucial for the evolution of the atmospheres of the planet but their relative importance is not known. While X-rays penetrate deeper into the planet atmosphere, UV fluxes may be higher and significantly affect the outer layers of the planet atmosphere. We aim at a comprehensive study of the strength and range of X-ray and UV fluxes for M dwarfs identified in the GALEX All-Sky Survey. In this proposal we ask for the corresponding X-ray measurements.|
|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, 2012-05-07T00:00:00Z, 065368, 17.56_20190403_1200. https://doi.org/10.5270/esa-fbpoo79|