Respuesta :
Using observations of the atomic hydrogen 21 cm line rotation curves of spiral galaxies determined beyond radii where starlight can be detected.
What is rotation curves of spiral galaxies?
- The main method for ascertaining the mass distribution in spiral galaxies is to analyze the rotation curves of spiral galaxies. They offer vital knowledge for comprehending spiral galaxies' dynamics, evolution, and creation.
- The function vcirc(R) for a galaxy represents the rotation curve. Measurement of vcirc(R) over a range of R will yield highly significant data on the gravitational potential. This in turn provides fundamental details regarding the galaxy's mass distribution, including dark matter.
- In fact, by analyzing a spiral galaxy's rotation curves, we may determine not only how much mass the galaxy has overall but also how this mass is distributed inside the galaxy.
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