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By recording the variation in colour, the team were able to reconstruct the colour profile across the accretion disc. Because the temperature of an accretion disc increases the closer it is to the black hole, the team could measure the diameter of the disc of hot matter, and plot how hot it is at different distances from the centre.
They found that the disc is between four and eleven light-days across - a remarkably accurate measurement for a small object at such a great distance.
Originally posted by TupacShakur
Quasars blow my mind. Imagine how bright and powerful something has to be for it to be visible from billions of light years away.
By recording the variation in colour, the team were able to reconstruct the colour profile across the accretion disc. Because the temperature of an accretion disc increases the closer it is to the black hole, the team could measure the diameter of the disc of hot matter, and plot how hot it is at different distances from the centre.
They found that the disc is between four and eleven light-days across - a remarkably accurate measurement for a small object at such a great distance.
Yes the power in quasars is mind-bending!
Originally posted by goldcoin
Originally posted by TupacShakur
They found that the disc is between four and eleven light-days across - a remarkably accurate measurement for a small object at such a great distance.
They're truly remarkable! I think Quasars are one of those things that we cannot even begin to imagine... The human mind cannot even begin to comprehend the power of the universe, that's why this photo is so powerful! To me anyway