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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 8.

Same as Figure 7, but for NGC 5897. At the depth of DELVE DR2, our model suggests that the underlying tidal tail of this GC would only barely be detectable, even in the presence of no Milky Way foreground (middle panel). At the full LSST depth, the same model suggests that the stream ought to be detectable in the presence of no Milky Way foreground. The addition of a Milky Way foreground model in both cases masks the underlying stream and leaves only the extratidal envelope detectable.

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