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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 8.

Top: results of our artificial resolved dwarf tests at a distance of 3.5 Mpc. It shows the size–luminosity space probed by our tests, along with known Local Group dwarfs (red symbols), Cen A dwarfs (orange squares), and NGC 253 dwarfs (orange triangles). Lines of constant V-band surface brightness are shown at 24, 26, 28, and 30 mag arcsec−2. The colored region shows a recovery completeness map for our simulated dwarfs in size–luminosity space. The blue hatched area at bright magnitudes denotes the approximate region where dwarfs should be easily detected (with ∼100% efficiency), while the orange hatched region corresponds to regions with little chance of dwarf detection (with a presumed 0% recovery); we have not explicitly explored these regions with our simulations. Bottom: RGB false-color images of example simulated faint dwarf galaxies. For each image cutout, the size is 1′ × 1′. Our experiments show that dwarfs as faint as these will be detectable out to 3.5 Mpc.

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