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Galaxy Classification: Citizen Scientists versus Experts
Chemistry and Physics Faculty Proceedings, Presentations, Speeches, Lectures
  • Stefan Kautsch, Nova Southeastern University
  • Richard Vazquez, Nova Southeastern University
  • Chau Phung, Nova Southeastern University
  • Michael VanHilst, Nova Southeastern University
  • Victor Castro, Nova Southeastern University
  • Dmitry V. Bizyaev, Apache Point Observatory
Event Name/Location
American Astronomical Society, AAS Meeting #227, id.342.39
Publication Date
We present the differences of morphological galaxy classification between non-experts and experts. The non-experts are represented by college students and a retired adult community, who use an online application to visually classify galaxies selected from a galaxy morphology catalog. We find that the non-expert group lags the expert classification by one Hubble type behind, for instance, the non-experts classify a set of galaxies with Sb, while the experts classify the same set as Sc. We believe the reason is because the Hubble sequence is increasing the asymmetric structures towards later types. Our results show that the experts have the ability to identify more detailed structures, which the laymen commonly do not recognize.

(c) 2016: American Astronomical Society

Citation Information
Stefan Kautsch, Richard Vazquez, Chau Phung, Michael VanHilst, et al.. "Galaxy Classification: Citizen Scientists versus Experts" (2016)
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