|Title||Sgr E: a distant witness of Sgr A*.s past activity|
|Author||Mr Dimitri CHUARD|
|Description||We propose 100 ks of XMM observation to complete the survey of the diffuse X-ray emission towards the Galactic west and capture the echo of Sgr A*.s past outbursts before they leave the central molecular zone (CMZ). This observation of the distant molecular cloud Sgr E, with XMM.s large effective area, is required to probe putative old outbursts from Sgr A*. It will allow us to complete our global study of the Galactic center X-ray diffuse emission, which concludes that multiple short events happening few hundred years ago are currently propagating through the Galaxy.s CMZ. By applying the spectral technique we have recently developped to the data of this Sgr E observation, we will extend our reconstruction of the past activity of Sgr A* to epochs beyond 300 yr ago.|
|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, 2020-04-12T22:00:00Z, 082514, 17.56_20190403_1200. https://doi.org/10.5270/esa-8osobju|