|Title||Monitoring Sgr A* X-ray and Near-Infrared flaring activity|
|Author||Dr Andrea Goldwurm|
|Description||We propose to continue the monitoring of the flaring activity of the galactic supermassive black hole Sgr A*, with XMM-Newton and the VLT in order to detect a new brigth and long X-ray-Near-IR flare from this source that will allow us to: 1) Measure simultaneously the flare spectral shape in the X-ray and NIR bands and thus reveal the emission mechanisms and the accretion-ejection flows properties in the vicinity of the BH. 2) Confirm the presence of periodic X- ray modulations on timescales of 20-30 min, and measure the period and the light curve shape in order to explore the behavior of accreting matter at the very edge of the BH event horizon and possibly constrain the BH spin.|
|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, 2010-04-28T00:00:00Z, 055475, 17.56_20190403_1200. https://doi.org/10.5270/esa-ctya52h|