NGC 2516 OPEN STAR CLUSTER: SIMULATIONS AND MOCK OBSERVATIONS

NGC 2516 ШАШЫРАҢҚЫ ЖҰЛДЫЗ ШОҒЫРЫ: МОДЕЛЬДЕУ ЖӘНЕ ЖОРАМАЛ БАҚЫЛАУЛАР
РАССЕЯННОЕ ЗВЕЗДНОЕ СКОПЛЕНИЕ NGC 2516: МОДЕЛИРОВАНИЕ И МНИМЫЕ НАБЛЮДЕНИЯ
Kalambay M.T. Otebay A.B. Nazar A.B. Assilkhan A. Shukirgaliyev B.T.
2025 Kazakh-British Technical University

Herald of the Kazakh British Technical UNiversity
2025 #22 Issue 2 312 - 321 pp.

This study examines the NGC 2516 open star cluster using numerical simulations and comparisons with observational data. By employing the phi-GRAPE-GPU code, we reconstructed the cluster’s orbit over 123 Myr to identify its birthplace within the Galaxy. Over 70 simulations were conducted, refining the initial parameters of the star cluster to better match present-day observations. The analysis revealed that the standard mass function parameters could not fully replicate the unique characteristics of NGC 2516. To address this, we adjusted the mass function to align more closely with the observed stellar properties. The results demonstrate morphological similarities between the simulated and observed clusters. However, the simulations also include additional tidal tail stars that are absent in observational data, possibly due to observational limitations. These findings highlight the need for more detailed analyses and comparisons. In future studies, we plan to apply machine learning techniques to more accurately identify and classify stars in the tidal tails.

Galactic evolution , mass function , NGC 2516 , numerical simulations , star clusters

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Heriot-Watt International Faculty, K. Zhubanov Aktobe Regional University, Aktobe, Kazakhstan
Fesenkov Astrophysical Institute, Almaty, Kazakhstan
Department of Astronomy, Columbia University, New York, United States
Department of Astrophysics, American Museum of Natural History, New York, United States
The Gumarbek Daukeyev, Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
K. Zhubanov Aktobe Regional University, Aktobe, Kazakhstan
Energetic Cosmos Laboratory, Nazarbayev University, Astana, Kazakhstan
Physics Department, Nazarbayev University, Astana, Kazakhstan

Heriot-Watt International Faculty
Fesenkov Astrophysical Institute
Department of Astronomy
Department of Astrophysics
The Gumarbek Daukeyev
K. Zhubanov Aktobe Regional University
Energetic Cosmos Laboratory
Physics Department

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