college station using nasas spitzer space telescope a texas a&m university-led team of astronomers has uncovered what may very well be the earliest most distant cluster of galaxies ever detected the group of roughly 60 galaxies called clg j02182-05102 is nearly 10 billion years old born just 4 billion years after the big bang however its not the size nor the age of the cluster that amazes the team of researchers led by dr casey papovich an assistant professor in the texas a&m department of physics and astronomy and member of the george p and cynthia woods mitchell institute for fundamental physics and astronomy rather its the surprisingly modern appearance of clg j02182-05102 that has them baffled a huge red collection of galaxies typical of only present-day galaxies its like we dug an archeological site in rome and found pieces of modern rome amongst the ruins explains papovich lead author of the teams study to appear in the astrophysical journal while its neighboring galaxies appear vastly smaller and far fainter papovich says clg j02182-05102 stands out as a densely-populated bundle of ancient galaxies enormous red galaxies at the center contain almost 10 times as many stars as our milky way he notes combining for a total size which rivals that of the most monstrous galaxies of our nearby universe before now papovich says such a finding would be considered by many astronomers to be highly unlikely considering the time frame in which they were found the predictions are that these things should be very rare when the universe was 4 billion years old and yet we found them papovich explains not only did we find them it looks for all intents and purposes like they had already formed completely and evolved into the large concentrations of galaxies that we see in clusters today exactly why these particular galaxies are fully formed that early is what papovich and his collaborators which include astronomers from nasas jet propulsion laboratory at the california institute of technology (caltech) as well as carnegie observatories hope to one day uncover but for now studying clg j02182-05102 could help them and other researchers better understand how galaxies form and cluster in general the find resulted from a project initiated two years ago when papovich and his team observed an area of the sky that could encompass 250 full moons the largest extragalactic survey of space ever made the spitzer wide-area infrared extragalactic (swire) survey the team focused on a cosmic region of the survey that previously had been observed by other instruments including japans subaru telescope in mauna kea hawaii and the european space agencys orbiting xmn-newton telescope this combined with infrared data from the united kingdom infrared telescope also in hawaii and spitzers public ultra deep sky survey instantly revealed a number of distant galaxies it wasnt until papovichs group studied faint light from clg j02182-05102s least-dim galaxies that they were able to determine they had found a cluster that contained about 60 galaxies full of old red stars at a time when the universe was only 4 billion years old about 30 percent of the universes current age of 137 billion years at this point in time most other galaxies would still be forming their very first stars and certainly would not have congregated with other galaxies yet in essence papovich said the galaxies in clg j02182-05102 must have subscribed to a rock ‘n roll lifestyle: they lived fast and died young its another mystery papovich hopes to solve through deeper observations including spectroscopy with the hubble telescope later this year thats one of the reasons this is so interesting he adds it seems that they somehow had a premonition they would end up in these big clusters so thats another thing we want to find out for more information on nasas spitzer space telescope visit http://wwwspitzercaltechedu/ -atm- contact: chris jarvis (979) 845-7246 or cjarvis@sciencetamuedu or dr casey papovich (979) 862-2704 or papovich@physicstamuedu story includes contributions from adam hadhazy and nasa/jpl-caltech the post texas a&m-led research finds ancient city of modern galaxies appeared first on texas a&m college of science