Astronomers have found a striking link between the amount of dust surrounding a supermassive black hole and the strength of the radio emission produced in extremely bright galaxies.
with a mass millions to billions that of our sun, at its center, including our own Milky Way. In some galaxies there is lots of material in the center, feeding and growing this supermassive black hole, making it very energetic and"active."
In order to understand the physics of these red quasars,"spectroscopic" measurements are required, which can be used to analyze the quasar light at different wavelengths. The shape of the quasar's spectrum can indicate the amount of dust present surrounding the central region.
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