Hi, Could you me to translate this and post it for dicussion?
As we known, when the star dead it will left as a dwarf for the mass same as sun, a pulse star for 9 times mass of sun and a black hole for 15 times mass of sun. Our sun was created by a supernova. Therefore, what was left over for this supernova and where is it?
Thanks for help, because I don't know to use chinese input!
This diagram shows the large-scale flows of gas in the Milky Way halo of faint stars and hot gas. Using the Hubble Space Telescope's Cosmic Origins Spectrograph and Space Telescope Imaging Spectrograph, Nicolas Lehner and Chris Howk at the University of Notre Dame were able to directly constrain the distance of the fast-moving ionized clouds responsible for flows of gas in the Milky Way halo. The invisible clouds were detected by finding their absorption signature in the ultraviolet spectra of distant background halo stars. The researchers found that the clouds are reservoirs of gas that enable stars to continue to form in the Milky Way. Without the replenishment from recycled gas and infalling extragalactic material, stars would have stopped forming in the Milky Way a long time ago. This study also suggests the clouds slow down as they approach the Milky Way
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