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Gaia astrometric and photometric study of open clusters Dolidze 18 & Ruprecht 70
Tadross, A. L.; Hendy, Y. H.
Here, we conducted a photometric and astrometric study of two open stellar clusters Dolidze 18 and Ruprecht 70, which have not been photometrically studied before. The most important thing for using Gaia (DR2) database lies in the positions, parallax, and proper motions, which make us split cluster members from the field ones and get precise astro…
Galactic component mapping of galaxy UGC 2885 by machine learning classification
Holwerda, Benne W.; Barmby, Pauline; Kwik, Robin J. +1 more
Automating classification of galaxy components is important for understanding the formation and evolution of galaxies. Traditionally, only the larger galaxy structures such as the spiral arms, bulge, and disc are classified. Here we use machine learning (ML) pixel-by-pixel classification to automatically classify all galaxy components within digit…