Figure 2 from A Tip of the Red Giant Branch Distance of 22.1 ± 1.2 Mpc to the Dark Matter Deficient Galaxy NGC 1052–DF2 from 40 Orbits of Hubble Space Telescope Imaging

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A Tip of the Red Giant Branch Distance of 22.1 ± 1.2 Mpc to the Dark Matter Deficient Galaxy NGC 1052–DF2 from 40 Orbits of Hubble Space Telescope Imaging

Authors: Zili Shen, Shany Danieli, Pieter van Dokkum, Roberto Abraham, Jean P. Brodie, Charlie Conroy, Andrew E. Dolphin, Aaron J. Romanowsky, J. M. Diederik Kruijssen, and Dhruba Dutta Chowdhury

2021 The Astrophysical Journal Letters 914 L12.

Provider: AAS Journals

Caption: Figure 2.

Stars detected after quality cuts in NGC 1052–DF2, shown in small regions in the center (panel a) and the outskirts (panel b). The TRGB magnitude is approximately 27.5 mag, as identified in Section 4.2. Stars with 27.5 < m_F814W < 28.0 are circled in orange and stars with 27.0 < m_F814W < 27.5 in green. The number of sources brighter than 27.5 mag decrease visibly on the image. Blended objects (especially in the center) do not pass the quality cuts. Stars in the central part of the galaxy (R < R_eff) are excluded from the analysis.

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