|Title||X-rays from FU Orionis Stars|
|Author||Dr Stephen Skinner|
|Description||FU Orionis objects (FUors) are a remarkable class of low-mass pre-main-sequence stars that undergo dramatic optical outbursts attributed to an increase of the accretion rate onto the star. Little is known about their X-ray properties but we have recently obtained first detections of unusual X-ray emission from the prototype FU Ori and hard X-rays from the FUor 1735 Cyg. We propose here to observe five additional FUors with EPIC, of which two are classical FUors with historical outbursts (V346 Nor, Reipurt50N) and three are spectroscopic FUors which may be outburst precursors. These observations will double the number of FUors observed in X-rays and provide a larger sample needed to reliably determine the X-ray properties of the class and identify emission mechanisms.|
|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, 2008-06-22T00:00:00Z, 050242, 17.56_20190403_1200. https://doi.org/10.5270/esa-7ug68yl|