Simultaneous X-ray, Sub-millimeter, and Mid-Infrared Monitoring of Sagittarius A*

Details Simultaneous X-ray, Sub-millimeter, and Mid-Infrared Monitoring of Sagittarius A* Simultaneous X-ray, Sub-millimeter, and Mid-Infrared Monitoring of Sagittarius A*

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1481g&link_type=abstract

Chandra Proposal ID #05600051

Physics

Chandra Proposal Id #05600051

Scientific paper

We propose two (2) 25-ks ACIS-I observations of SgrA*, the Galactic supermassive black hole. Previous observations show that the mean rate of factor-of-10 or larger X-ray flares is 0.6 +/- 0.3 per day. Simultaneous monitoring with the SMA and Keck are being proposed to search for correlated sub-mm and MIR variations and lags predicted by theory to characterize the flaring-state emission process. Simultaneous X-ray, sub-mm, and MIR monitoring provides the only means to discriminate between synchrotron and SSC origins for the X-ray flares. These data will also be used to monitor the fluxes and hardness ratios of the 200 brightest of the over 2300 discrete X-ray sources that we have discovered in the field of view in order to identify flaring YSOs, CVs, and XRBs toward the Galactic center.

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