New recondite observations of the former universe have led to an unexpected breakthrough : some very aloof quasars are circumvent by big halos of coolheaded gas . This finding brings into head several assumption astronomers had about how Galax urceolata shape and evolve .
quasi-stellar radio source are incredibly active galaxies , where the supermassive black hole is eating up material so promptly that the energy released outshines the rest of the galaxy . In previous surveys , only 10 pct of quasars were shown to have a aura but in this new sample , 100 percent of them do .
The inquiry , availableonlineand to be published in the Astrophysical Journal , focused on 19 quasars between 11.5 and 12.1 billion tripping - years away , and looked at the properties of their ring . Typically they extend from 350,000 to over 1 million lite - year from the quasar and have a temperature of about 10,000 kelvins .
“ It is still too early to say if this is due to our new data-based technique or if there is something funny about the quasars in our sample distribution . So there is still a lot to learn ; we are just at the beginning of a new era of discoveries ” , says lead writer Elena Borisova , from the ETH Zurich , in astatement .
The comportment of this cold-blooded flatulency is unaccounted for in our current movie of galaxy evolution . Ten thousand kelvins is very hot for human standards but significantly cooler than expect when we consider the intergalactic spiritualist ( IGM ) . The IGM is usually extremely red-hot , with temperatures of one thousand thousand of degrees , and very low-spirited densities ( less than an atom per three-dimensional meter ) .
The study was possible thanks to a new instrument called MUSE ( Multi Unit Spectroscopic Explorer ) installed on the Very gravid Telescope in Chile . The legal instrument rent uranologist produce observation of pass objects where every pel of the image has a full spectrum of light .
“ We have exploit the unique capabilities of MUSE in this study , which will pave the way for future survey . Combined with a new genesis of theoretic and numerical model , this coming will continue to provide a new windowpane on cosmic structure formation and Galax urceolata development , ” atomic number 27 - author Sebastiano Cantalupo added .
The squad hopes that succeeding sketch will expand on this analysis , examine a large number of quasars and also study these 19 objects in more contingent .
