Sentences with phrase «dead galaxies»
Previous studies of distant dead galaxies have assumed that their structure is similar to the local elliptical galaxies they will evolve into.
sciencedaily.com
«Hubble sees «ghost light» from dead galaxies.»
It found similar - looking dead galaxies existed about 10 billion years ago and, by careful examination of their light, showed they were actively building stars for less than a billion years — a blink of the eye compared with our Milky Way, which is still making stars after more than 12 billion years.
Dull, red - and - dead galaxies like Messier 87 (below) may not look as pretty as the youthful Antennae Galaxies (above), but they, too, contain regions where stars are forming.
In other instances, dead galaxies contain plenty of gas, but some factor prevents them from forming stellar nurseries.
From dead galaxies to mouse gametes, we've got it all.
In the end success was secured by the fact that the stone - dead galaxy was positioned behind a foreground cluster of other galaxies — a cluster which functioned as a «natural lens» by amplifying as well as enlarging the image of MACS2129 - 1.
By joining this natural lens with the resolving power of Hubble, scientists were able to see into the center of the dead galaxy.
Note that regions of Milky Way are blue from bursts of star formation, while the young, dead galaxy is yellow, signifying an older star population and no new star birth.
Astrophysics: A joint European - US study led by experts from Niels Bohr Institute (NBI) at University of Copenhagen, Denmark, reveals a rotating stellar disk à la the Milky Way in a stone - dead galaxy 10 billion light - years from Earth.
The finding is remarkable, as this pattern of stellar rotation in a dead galaxy strongly contradicts prevalent astrophysical theory regarding the formation of elliptical - shaped galaxies shortly after the Big Bang 13.7 billion years ago.
«Unexpected rotation in a stone - dead galaxy.»
Nobody had ever observed star birth in red - and - dead galaxies (old stars glow red, while younger stars are bluer), but University of Michigan astronomer Joel Bregman had a hunch that some of them still harbor enough pristine gas to sustain a stellar nursery.
The fourth, named Messier 105, was the ultimate test: It was the reddest and deadest galaxy he could find.
The computer simulation showed that the dead galaxies remained stable because they had 100 times more dark matter than visible matter, providing more evidence of dark matter's importance in the universe.
«Once again, Herschel has detected something that was never seen before: significant amounts of cold gas in nearby red - and - dead galaxies,» said Göran Pilbratt, Herschel project scientist at ESA.
Star - forming galaxies shine brightly in the blue light of their young stars until a sudden evolutionary shift halts the star formation, so that the galaxy becomes dominated by old, red stars and joins a graveyard full of old and dead galaxies.