|Title||Constraining the past activity from Sgr A*: A survey of the CMZ|
|Author||Dr Regis Terrier|
|Description||The observation of time varying Fe Ka line emission at 6.4 keV in several regions in the central 100 pc is strongly suggesting that the SMBH experienced a period of more intense activity in the relatively recent past. The observation of these echoes can provide invaluable information on the last high state of Sgr A* and its duty cycle, on the matter distribution in the region and on the chemistry induced by these intense emissions. We propose to perform a deep scan of the molecular matter in the central degree with XMM to build the lightcurve of Sgr A* over the last centuries thanks to the time dependent morphology of the 6.4 keV line emission. This deep scan will also contribute to settle other issues such as the .hot plasma.|
|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, 2013-10-26T00:00:00Z, 069464, 17.56_20190403_1200. https://doi.org/10.5270/esa-e81ayd7|