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DOE OSTI · 1993444

Detecting Dwarf Galaxies Around NGC 55

Medoff, Jonah·Drlica-Wagner, Alex·Mutlu-Pakdil, Burçin·Carlin, Jeff
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Abstract

Lambda-CDM predicts the existence of faint dwarf galaxies orbiting both large host galaxies, like the Milky Way, and smaller hosts like the Magellanic Clouds. However, the satellite populations around these smaller host galaxies are poorly understood from both a theoretical and observational perspective. In order to improve our understanding of the satellite populations of low-mass galaxies, the DELVE-DEEP Survey is performing a search for satellites around the nearby, low-mass galaxy, NGC 55. As part of this search, we aim to characterize our detection sensitivity by injecting artificial dwarf galaxies into our data set and attempting to recover them. In this poster, I present our methods of injection and recovery, as well as our preliminary results showing our measured detection rates for artificial dwarf galaxies of varying size and luminosity. Additionally, we explore the blending of resolved stellar fluxes that results as a consequence of source recovery and how this affects the recovered magnitudes of injected dwarf galaxies.

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79 ASTRONOMY AND ASTROPHYSICS

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BibTeXRIS

Medoff, Jonah, Drlica-Wagner, Alex, Mutlu-Pakdil, Burçin, Carlin, Jeff. 2023-08-03. Detecting Dwarf Galaxies Around NGC 55. https://doi.org/10.2172/1993444

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