In November 2015, a study was published in the journal Astronomy and Astrophysics by Goran Ostlin et al. which examined the kinematics of H11 using observations collected at the European Southern Observatory, Paranal, Chile.[13] The study also compared H11 to The Antennae Galaxies (NGC 4038), a pair of interacting galaxies. The abstract states: "In this work, we investigate the kinematics of stars and ionised gas in Haro 11, one of the most luminous blue compact galaxies in the local Universe."[13] Further on, the abstract states: "Hence the complexities reveal real dynamical disturbances providing further evidence for a merger in Haro 11."[13] The abstract finishes with: "Haro 11 shows many resemblances with the famous Antennae galaxies both morphologically and kinematically, but it is much denser, which is the likely explanation for the higher star formation efficiency in Haro 11."[13]