From: Marshall Space Flight Center
Posted: Friday, March 29, 2002
SDSS 0836+0054, 1030+0524, & 1306+0356: Chandra Finds Well-Established Black Holes In Distant Quasars
- Pushing further back toward the first generation of objects to form in the Universe, NASA's Chandra X-ray Observatory has observed the three most distant known quasars and found them to be prodigious producers of X-rays. This indicates that the supermassive black holes powering them were already in place when the Universe was only about one billion years old.
Operations CXO Status Report (Friday 03/22/02)
Last week the observing schedule was interrupted due to high radiation associated with solar flare activity. The loads were halted on March 18 at 9:51am EST through a ground command to execute the SI Safing SCS 107. This ensured that the accumulated radiation dose for ACIS remained below the allowed threshold. Loads were rebuilt for uplink on March 20, when the radiation environment reached an acceptable level.
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