Coordinated XMM-Newton and HST monitoring of SgrA*

Details Coordinated XMM-Newton and HST monitoring of SgrA* Coordinated XMM-Newton and HST monitoring of SgrA*

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...96p&link_type=abstract

XMM-Newton Proposal ID #04024302

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Sgr A*, Sgr A*, Xmm-Newton Proposal 04024302

Scientific paper

We propose to carry out further monitoring of the central supermassive black hole in Sgr A* in X-rays and the near-IR with simultaneous XMM-Newton and HST observations. Our goal is to determine the physical mechanisms governing the accretion onto a supermassive black hole when the accretion luminosity is at an extremely low level. X-ray flares are very likely to be produced within 10 Schwarzschild radii and hence probe the environment very close to the black hole. By investigating the correlation of X-ray and near-IR light curves for flares of different luminosities and broad-band spectral characteristics we hope to test whether current synchrotron/inverse Compton models for the flare production are valid.

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