Peculiar Galaxy Detection

Dear Colleague,

Galaxies of peculiar morphology that cannot be classified as elliptical, spiral, lenticular, or irregular are far less common in the universe compared to the known galaxy population, yet these objects are important as they carry invaluable information about the past, present, and future of the universe. These relatively rare objects that are not on the Hubble sequence are more common in high redshifts but are also present in the local universe. Among other things, these objects can provide important information about galaxy evolution and gravitational interactions between galaxies.

For many years, peculiar galaxies were considered extremely rare and were examined individually on a case-by-case basis. However, the development of space-based instruments has enabled the imaging of deeper space, where peculiar galaxies are more prevalent. Additionally, autonomous telescopes and digital sky surveys enable the imaging of a large numbers of galaxies, making the detection of peculiar galaxies far more efficient compared to the pre-information era.

This Special Issue aims at capturing the state of the art as well as shaping future directions in the expedition of detecting peculiar galaxies. Relevant topics of interest include but are not limited to characterization and definition of peculiar galaxies, use of instrumentation (space-based and ground-based) for peculiar galaxy detection, computational methods and machine vision, crowdsourcing methods, search strategies, multimodal approaches, hybrid methods, and optimization methods for efficient detection of peculiar galaxies.

Dr. Lior Shamir
Guest Editor

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