A computer simulation tracks 9 million years of evolution within a stellar nursery - also known as a giant molecular cloud – in which stars are born
The most detailed simulations to date of giant molecular clouds hint that we may need to rethink our understanding of how stars form in these vast cosmic objects.
The simulation starts with a cloud that has an initial mass 20,000 times that of our sun and a diameter of 65 light years. “One of the surprises that we saw [is that] stars can require a significant amount of time to form,” says Grudić. The team found that for massive stars – those more than 10 times the mass of our sun – formation can take as long as 3 million years and an average of around 1 million years, which is an order of magnitude longer than typically quoted.
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