mass moment of inertia of cylinder and thin disc is angular momentum.
mass moment of inertia of cylinder and thin disc is angular momentum.
mass moment of inertia of cylinder and thin disc?
angular momentum
Na
Na
three stellar components with varying scale heights can be distinguished within the disc of the milky way (mw): the "young thin disc", the "old thin disc", and the "thick disc". the "young thin disc" is a region in which star formation is taking place and contains the mw's youngest stars and most of its gas and dust. the scale height of this component is roughly 100 pc. the "old thin disc" has a scale height of approximately 325 pc while the "thick disc" has a scale height of 1.5 kpc. although stars move primarily within the disc, they exhibit a random enough motion in the direction perpendicular to the disc to result in various scale heights for the different disc components. stars in the mw's thin disc tend to have higher metallicities compared to the stars in the thick disc. the metal-rich stars in the thin disc have metallicities close to that of the sun (formula_7) and are referred to as population i (pop i) stars while the stars that populate the thick disc are more metal-poor (formula_8) and are referred to as population ii (pop ii) stars (see stellar population). these distinct ages and metallicities in the different stellar components of the disc points to a strong relationship between the metallicities and ages of stars.
galactic disc