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A Search for Gas-Rich Dwarf Galaxies in the Local Universe with ALFALFA and the WIYN One Degree Imager

  • Authors: Katherine L. Rhode, Nicholas J. Smith, William F. Janesh, John J. Salzer, Elizabeth A. K. Adams, Martha P. Haynes, Steven Janowiecki, John M. Cannon

Katherine L. Rhode et al 2023 The Astronomical Journal 166 .

  • Provider: AAS Journals

Caption: Figure 10.

A plot of dwarf galaxy M V values, drawn from McConnachie (2012), as a function of distance from the parent galaxy for galaxies in and near the Local Group. Milky Way satellite galaxies are plotted in blue while M31 satellites are shown in orange. Dwarf galaxies that are not satellites of either the Milky Way or M31 appear in pink, including Leo T (pink filled star symbol). For the latter set of objects, we plot the distance to the barycenter of the Local Group. Leo P is marked with a filled gray star and plotted using the distance from McQuinn et al. (2015). We also show our measurements for the dwarf galaxy candidate associated with AGC 268071 and AGC 249525 (black and red points with large error bars). For the two dwarf galaxy candidates, we plot the average of the bright and faint absolute magnitude estimates and use both estimates to set the uncertainty. The distance uncertainty is defined by the distance range over which we detect the stellar overdensity. We also note that the distances we are plotting for these two objects are the heliocentric distances.

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