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Resolved Dwarf Galaxy Searches within ∼5 Mpc with the Vera Rubin Observatory and Subaru Hyper Suprime-Cam

  • Authors: Burçіn Mutlu-Pakdіl, David J. Sand, Denija Crnojević, Alex Drlica-Wagner, Nelson Caldwell, Puragra Guhathakurta, Anil C. Seth, Joshua D. Simon, Jay Strader, and Elisa Toloba

2021 The Astrophysical Journal 918 88.

  • Provider: AAS Journals

Caption: Figure 2.

The CMD of the Draco dwarf spheroidal galaxy (MV = −8.7 mag; ∼2.5 × 105 L) from the SDSS, plotted in absolute magnitude space. The approximate TRGB magnitude in the r band is plotted at Mr = −3.0 mag (Sand et al. 2014). Assuming a 50% completeness magnitude of (g, r) = (27.83, 27.35) mag, we have also plotted the corresponding absolute magnitude at our fiducial distances of D = 1.5, 3.5, and 5 Mpc. For dwarfs at D ≈ 5 Mpc, one should be able to resolve stars ∼2 mag below the TRGB. Meanwhile, at D ≈ 1.5 Mpc, HB stars should be resolved.

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