When you stop to think how unfortunately grounded mankind is to their home planet still, you can’t help but be amazed when you hear stories about scientists studying galaxies 55 million light years away from us. But that is hardly a joke or an overstatement: scientists at the International Centre for Radio Astronomy Research are currently just free out of a new discovery that was made regarding galaxy NGC 4569.
The NGC 4569 galaxy, situated in the Virgo cluster and also known as Messier 90, is a spiral galaxy that was named the largest and brightest of the ones observed so far, thanks to its absolute magnitude of -22. However, the NGC 4569 is what scientists call a prototype of an anemic galaxy due to its seemingly scarce star formation in its midst.
Thanks to using the super sensitive camera on the Canada-France-Hawaii Telescope, scientists decided to give this particular galaxy a little more attention than before when, between intermittent studies, the NGC 4569 seemed to have lost a fair amount of its quantity of gas, as it had been noticed prior. However, no previous observations were able to elucidate where the missing gas had done.
After a longer-term observation of the galaxy, scientists were awed to find that the galaxy was actually leaving a 300,000 light year long trail of gas in its wake. The galaxy seems to be moving through the cluster at an average speed of 1,200 kilometers per second, and because of this velocity, gas is gradually stripped from it and left behind as it moves.
This thoroughly explains the missing mass of the NGC 4569 and also explains the same phenomenon that has been noticed in other galaxies across the observable space.
The explanation that the scientists found for the phenomenon was the fact that big clusters of galaxies tend to trap a large amount of hot gas. Afterwards, when a galaxy such as the NGC 4569 enters a cluster, it is subjected to the pressure of all the present gasses that act just like a powerful, hot wind for the galaxy. Because of the strength of these ‘winds’, the newcomer galaxy ends up having matter stripped from it under the impact.
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