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DELVE-ing into the Milky Way’s Globular Clusters: Assessing Extratidal Features in NGC 5897, NGC 7492, and Testing Detectability with Deeper Photometry

  • Authors: A. Chiti, K. Tavangar, P. S. Ferguson, J. A. Carballo-Bello, A. M. Senkevich, D. Erkal, A. Drlica-Wagner, A. B. Pace, A. P. Ji, D. J. Sand, G. Limberg, A. Chaturvedi, D. Crnojević, G. E. Medina, A. H. Riley, N. Shipp, A. K. Vivas, M. Wertheim, Y. Choi, C. E. Martínez-Vázquez, B. Mutlu-Pakdil, M. Navabi, J. D. Sakowska, G. S. Stringfellow, A. Zenteno

A. Chiti et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 10.

Comparison of the Jacobi radius at apocenter and pericenter with each GC’s half-light radius. For systems where these are comparable, the GC should experience strong tidal disruption. We show the tidal radius at pericenter and apocenter to highlight the range of tides along the orbit. Palomar 5, the first GC with a detected stellar stream, stands out as having the smallest ratio of its Jacobi radius at apocenter to its half-light radius. The GCs studied in this work are shown as colored markers, and the entire GC population is shown in gray.

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