The First Two Epochs of Chandra ACIS Imaging of Sgr A* and the Galactic Center

Details The First Two Epochs of Chandra ACIS Imaging of Sgr A* and the Galactic Center The First Two Epochs of Chandra ACIS Imaging of Sgr A* and the Galactic Center

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001tysc.confe.212b&link_type=abstract

Two Years of Science with Chandra, Abstracts from the Symposium held in Washington, DC, 5-7 September, 2001, meeting abstract.

Physics

Active Galaxies And Quasars

Scientific paper

We review the results from our first- and second-epoch observations of Sagittarius A* (Sgr A*) and the Galactic Center with the imaging array of the Advanced CCD Imaging Spectrometer (ACIS) on-board the Chandra X-ray Observatory. Highlights of the observations include the discovery of a faint X-ray source coincident with the radio position of Sgr A* to within 1/3 arcsecond in the first-epoch observation and the discovery of rapid, large-amplitude X-ray flaring from the direction of Sgr A* in the second-epoch observation. The properties of the X-ray emission and the constraints placed on the black-hole accretion-disk emission models for Sgr A* will be discussed. This research was supported by NASA grant NAS8-38252.

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