Many galaxies, including our own Milky Way, are characterized by a flat, extended, rotating stellar disk. These disk galaxies commonly contain two main parts: a thin disk and a thick disk. The thin disk contains younger, metal-rich stars, while…
Many galaxies, including our own Milky Way, are characterized by a flat, extended, rotating stellar disk. These disk galaxies commonly contain two main parts: a thin disk and a thick disk. The thin disk contains younger, metal-rich stars, while…