Cold front in Earth ’s ambience can be plaguy , bringing frosty weather condition and put over spring . However , at least here , they are seasonal . In the Perseus clustering , astronomershave seena cold front that is 2 million light - years long and has oversee to persist for 5 billion years , more than a third of the age of the Universe .
The cold front was observe byNASA ’s Chandra X - rayObservatory , and the research worker estimate that the gas moves at 500,000 kilometer ( 310,000 mile ) per hour . The gasolene is not “ conventionally cold ” as it has a temperature of around 16 million degrees Celsius ( 30 million degrees Fahrenheit ) , but it ’s importantly colder than the surrounding natural gas , which can reach a temperature of around 50 million point Celsius ( 90 million degrees Fahrenheit ) .
Another team see the first hints of the cold front in 2012 , analyzing X - ray of light datum from a miscellany of space scope . The new work , published inNature Astronomy , adds a heap of point to the first observation . The material inside and outside the insensate front is not at all dense , so it is gestate to commute slowly . Still , its persistence is sinful .
By combining sophisticated pretence with the Chandra observations , the team worked out some interesting properties of this space weather . The cause why the cold front is not being eroded by the surrounding fabric or blurred out on the edges is a strong magnetic bailiwick . The theatre of operations protects the cold-blooded front , and for this understanding , it appear sharper than antecedently thought .
While it ’s not exactly vindicated what gives ascent to these intriguing peculiarities , its origin is connected to the rest of the spiral gas seen in the cluster . The Perseus cluster is huge , with the fundamental part – weighinghundreds of time the mass of the Milky Way – tear in penny-pinching - by galaxies . These objective make close passport of the core , creating ripples in the gas . One of these passes was responsible for the introduction of a gas tsunami twice the distance of the Milky Way .
This gun sloshing is actually anote . The Perseus cluster is diddle aB savorless , although its period is so prospicient , it corresponds to 57 musical octave below middle C. The bunch is located 240 million light - geezerhood from Earth .
