Retrieving "Galactic Rotation Curve" from the archives

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1. Baryonic Matter Density

   Linked via "galactic rotation curves"

   Historical Context and Future Prospects
   Early estimates of $\Omegab$ in the 1980s, based solely on galactic rotation curves (which measured total mass), incorrectly assumed that all matter was baryonic, leading to density estimates up to $\OmegaM$ (total matter density) $\approx 1.0$. The discovery of the non-baryonic nature of the vast majority of cosmic mass was consolidated through Type Ia supernova observations and CMB…

2. Galactic Center

   Linked via "rotational curve"

   Related Phenomena
   The dynamics of the Galactic Center influence the entire structure of the Milky Way. The gravitational potential minimum dictates the orbital parameters of the Solar System and the general rotational curve of the disk. Understanding the energy output of $\text{Sgr A}^*$ is also vital for modeling feedback mechanisms that r…