Trying to become one with the GC

Consider the following code:

Thread t = null; 
for (int i = 0; i < 10; i++)
{
	t = new Thread( new ThreadStart( Worker ) );
      t.Name = string.Format( "Worker Thread {0}", i );
      t.Start();
}

My threads go off on their merry way but I don't have any reference to the threads anymore. Are my poor helpless threads now at the mercy of the garbage collector? I suspect they are safe but I'm not 100% positive. 

Thanks