|Title||X-ray Emission from FU Orionis Stars in Cygnus|
|Author||Dr Stephen Skinner|
|Description||FU Orionis objects (FUors) are young low-mass pre-main sequence (PMS) stars that are undergoing accretion at maximum rates 10e-4 solar masses per year. Classical FUors have all experienced optical outbursts attributed to a sudden increase in the disk accretion rate. Very little is known about the X-ray properties of these unusual stars. We initiated a X-ray survey of FUors with XMM-Newton in AO-3 and the prototype FU Ori has been detected. Its X-ray spectrum is very unusual compared to what is typically observed in PMS stars. We propose here to complete our X-ray survey of FU Ors. These observations will allow us to define the X-ray properties of the class and will serve as a valuable historical reference if any of our targets undergoes a future outburst.|
|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, 2007-11-23T00:00:00Z, 040284, 17.56_20190403_1200. https://doi.org/10.5270/esa-pp5pxvc|