2006-09-05 17:09:55 · 1 answers · asked by tom science 4 in Science & Mathematics ➔ Astronomy & Space
Quasars were first observed as very bright stars that appears to be very very far away. We have come to learn that they are super massive black holes located in the center of galaxies that suck in vast amounts of material. In this process, they emit a huge amount of radiation, sometime more blight then the entrire galaxy which they are contained within.
wiki states
"A quasar may readily release energy in levels equal to the output of hundreds of average galaxies"
"The highest redshift currently known for a quasar is 6.4" -- this would denote that it is the farthest know object.
"The scientific consensus is that quasars are powered by accretion of material onto supermassive black holes in the nuclei of distant galaxies, making these luminous versions of the general class of objects known as active galaxies. No other currently known mechanism appears able to explain the vast energy output and rapid variability."
2006-09-05 17:12:36 · answer #1 · answered by Michael M 6 · 0⤊ 0⤋