Video: Simulating the birth of a planet

  • The majority of planets form when a molecular cloud collapses into a young star. 

Indeed, the leftover gas and dust form a disk around the star, with the particulates inside the disk colliding and coalescing. 



    



    This process takes place over millions of years - forming larger and larger objects until a planet eventually takes shape.

    

Recently, Sally Dodson Robinson of the University of Texas at Austin ran a simulation that modeled the formation of the above-mentioned protostellar disks.

    "The simulations model important factors such as the turbulence and temperature of the disk, which affect how and where planets form," she explained.  

    "
In a disk that is too turbulent, the particles move too fast and bounce off each other. Less turbulence means a greater chance for them to collide and stick together."


    According to Robinson, discoveries like this are a result of the complexity of the models and simulations - which effectively cover a timescale of millions of years. 



    It should be noted that the considerable computation involved in the simulation was facilitated by the Ranger supercomputer at the Texas Advanced Computing Center (TACC).

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