CBA Center for Backyard Astrophysics



Figure 3.

Figure 3

Empirical correlation of the fractional period excess with Porb, for positive superhumps. Filled squares are dwarf novae, and open circles with explicit names are other types of cataclysmic variables. TT Ari, at the upper right, fits well with the trend supporting its membership in this family of stars.

(return to article)