The first article on the final day
This implies that the YMCs must have gone through at least one full crossing time before their presently observed age. Using the crossing time equation, tcross=(GMr−3vir)−1/2, and fixing the crossing time to 1 Myr we can solve for t, which is only dependent on the mass.(Ellis 2012)
This block failed to display. Double-click this text to correct any errors. Your changes are saved.