The Milky Way, Local Galaxies, and the Infrared Tully‐Fisher Relation
The Milky Way, Local Galaxies, and the Infrared Tully‐Fisher Relation
Using the near infrared fluxes of local galaxies derived from COBE/DIRBE J(1.25 $\mu$m) K (2.2 $\mu$m) \& L (3.5 $\mu$m) band maps and published Cepheid distances, we construct Tully-Fisher (TF) diagrams for the nearby galaxies. The measured dispersions in these luminosity-linewidth diagrams are remarkably small: $\sigma_J = 0.09$ magnitudes, $\sigma_K …