NGC 2516 OPEN STAR CLUSTER: SIMULATIONS AND MOCK OBSERVATIONS

M. Kalambay, A. Otebay, A.B. Nazar, Adilkhan Assilkhan, Bekdaulet Shukirgaliyev

Data confidence 85 high

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Abstract

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.