What are 'cold quasars?' What do they do, how do they work with galaxies?
All good things must come to an end, and eventually, galaxies run out of fuel to produce more stars, as all of the hydrogen is either locked up in existing nebulae, stars, and planets, or gobbled up by a supermassive black hole. However,
Makes sense that the black hole in the center of the galaxy would eat up all the gas and dust it can get its singularity on, right? Well, turns out, quasars aren't an automatic death sentence for galaxies, at least for some galaxies, so yes and no. Approximately 10 percent of older galaxies studied and observed with quasars in their center have stockpiles of gas and are thus still creating new stars.
This is an optical blue quasar looking back 7 billion years, This distant object is strange because ordinarily, they don't give off infrared emission.Except that appears to be how it does work. Objects in space tend to act in pretty unpredictable ways. We also don't have a firm grasp on the evolution of galaxies.
“SOFIA lets us see into this brief window of time where the two processes can co-exist,” said one researcher. “It’s the only telescope capable of studying star birth in this galaxy without being overwhelmed by the intensely luminous quasar.”Salome et al. 2015; Mahoro et al. 2017, Perna
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