Packet 6: Tossup 1

A type of these objects may have formed inside of Population III (-5[1])“quasi-stars” or through the merger (15[2])of “intermediate-mass” counterparts. (15[1])Katie Bouman’s CHIRP algorithm was used to image these objects (15[1])using very-long-baseline (15[1])interferometry (15[1])in the EHT collaboration. (15[1])These objects' accretion disks (15[2])may (15[1])emit large (15[1])amounts of radiation (15[2])to power (15[3])(*) quasars (10[2])(“KWAY-zars”). One of these objects lies inside the complex radio source Sagittarius A. (10[3])Most galaxies contain a “supermassive” (10[1])example of these (10[1])objects at their center. (10[2]-5[1])For (10[1])10 points, name these astronomical bodies which are so dense that light cannot escape their gravity. ■END■

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