Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004stard..32f...4b&link_type=abstract
StarDate magazine, vol. 32, no. 6, p. 4-9
Physics
Black Hole Physics, (Stars:) Supernovae: General
Scientific paper
Greg Shields of The University of Texas and collaborators have been using the Space Telescope Imaging Spectrograph aboard Hubble Space Telescope to investigate rare binary quasars. Binary quasars result when two galaxies collide causing the disk of hot gas surrounding the giant black hole at the center of each galaxy to blaze with intense light. Although black holes are only a prediction of general relativity and cannot be seen, their effect on the rotation rate of stars around a galactic center is dramatic. Quasars, first discovered in 1963, are extremely bright, extremely remote early galaxies with supermassive black holes at their centers. As these galactic cores rip away nearby stars and pull in massive amounts of interstellar gas, they form a superheated disk of light that can be seen across billions of light years of space.
Bonning Erin Wells
Shields Gregory A.
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