Multi wavelength study of accretion onto black holes and its evolution during co...
Multi wavelength study of accretion onto black holes and its evolution during cosmic times
The beginning of this century can be considered a golden age for X-ray astronomy, with the launch of XMM-Newton, Chandra and Suzaku, three cornerstones of the ESA, NASA and JAXA space programs. These observatories, although more t...
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Descripción del proyecto
The beginning of this century can be considered a golden age for X-ray astronomy, with the launch of XMM-Newton, Chandra and Suzaku, three cornerstones of the ESA, NASA and JAXA space programs. These observatories, although more than 10yr old, still deliver excellent science and X-ray astronomy now leads many fields of astronomical investigation. However, only small-medium class X-ray missions are planned to be launched in the next 10-15yr, thus shrinking the space for new discoveries in X-rays alone.
The two years at MPE will allow to diversify my scientific expertise by: i) expanding my research field into: a) Optical-Infra Red (IR) bands; b) evolution of Active Galactic Nuclei (AGN) variability through cosmic time; ii) being granted access to Optical-IR facilities and new X-ray missions. The proposed project will allow to:
1) measure the evolution of AGN variability over cosmic time using large AGN samples, thus also assessing whether AGN can be used as standard candles;
2) measure SgrA*'s duty cycle, its past activity, the Molecular Cloud (MC) Galactic Center (GC) distribution, the level of GC cosmic rays, the irradiation induced MC chemistry;
3) if SgrA* will go into outburst (a gas cloud will reach SgrA* in mid 2013) we will lead the X-ray investigation of this major event (e.g. the switching on of an AGN, jet-disc creation) that will remain in astronomy records;
4) link (thanks to NuSTAR, the new NASA X-ray mission) the variability properties of the Compton reflection hump, the FeK line and the soft excess in AGN, to finally understand the origin of these components;
5) monitoring the evolution of the cross-correlation function and the spectral energy distribution, during an entire Galactic Black Hole (GBH) outburst, to echo-map and determine the transformation of the disc-jet-corona system geometry;
6) understand if GBH winds can keep the alpha-disc stable, constrain the connections between wind-jet-state in GBH and the connections between GBH and AGN winds.