The Dark Matter Spin Parameter: Definition and Role in Structure Formation скачать в хорошем качестве

The Dark Matter Spin Parameter: Definition and Role in Structure Formation

Welcome, my name is Phil, and in this video I discuss what the dark matter spin parameter is and its role in galactic structure formation. The dark matter spin parameter is a dimensionless quantity that characterizes how much angular momentum a halo has relative to its mass and energy. It provides a compact way to compare the rotational support of halos across different scales. In practice, the spin parameter measures how efficiently angular momentum counteracts gravity, influencing the size and structure of galaxies that form within these halos. Cosmological simulations show that typical halos have low spin parameters, around a few percent, yet these small differences play a crucial role in shaping the wide variety of observed galactic morphologies. Help support this channel on Patreon:   / astrophil   Join this channel to get access to perks:    / @astrophil2000