Their axes of rotation line up along cosmic voids in the "beads on a string" model.
Bertil Lindblad presented a "dilemma" presented by these objects that the SSPSF model and the Lin- Shu density wave theory both proclaim to solve. Their axes of rotation line up along cosmic voids in the "beads on a string" model. These objects make up both "forks" of the Hubble Tuning Fork diagram, and one variant is the "barred" type. For 10 points, name this type of galaxy characterized by a central bulge and arms, typified by the Milky Way.
Bertil Lindblad presented a "dilemma" presented by these objects that the SSPSF model and the Lin- Shu density wave theory both proclaim to solve.
{spiral} galaxy [prompt on “{galaxy}“; accept {barred spiral} before mentioned]