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The TRGB distance to the second galaxy "missing dark matter". Evidence for two groups of galaxies at 13.5 and 19 Mpc in the line of sight of NGC1052

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arxiv 1907.03761 v1 pith:G23OURIH submitted 2019-07-08 astro-ph.GA astro-ph.CO

classification astro-ph.GAastro-ph.CO
keywords galaxiesgalaxydistancengc1052ngc1052-df4clustersdarkglobular
verification ladder T0 review T1 audit T2 compute T3 formal

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A second galaxy ``missing dark matter" (NGC1052-DF4) has been recently reported. Here we show, using the location of the Tip of the Red Giant Branch (TRGB), that the distance to this galaxy is 14.2+-0.7 Mpc. This locates the galaxy 6 Mpc closer than previously determined. We also analyse the distances to the brightest galaxies in the field-of-view (FOV) of NGC1052. We find this field is populated by two groups of galaxies in projection: one dominated by NGC1052 and NGC1047 at ~19 Mpc and another group containing NGC1042 and NGC1035 (as well as [KKS2000]04 and NGC1052-DF4) at ~13.5 Mpc. At a distance of 13.5 Mpc the globular clusters of NGC1052-DF4 have the same properties than globular clusters in the Milky Way and other dwarf galaxies.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Modified Gravity Theories in Light of the Anomalous Velocity Dispersion of NGC1052-DF2

    gr-qc 2019-08 conditional novelty 4.0 of 10

    NGC1052-DF2 and NGC1052-DF4 velocity dispersions are consistent with MOND, MOG, Weyl gravity and GR without dark matter, but Verlinde's emergent gravity is disfavored at D=20 Mpc.

  2. Tip of the red giant branch distance to the nearby dwarf galaxy [TT2009] 25 in the NGC 891 group

    astro-ph.GA 2019-08 conditional novelty 4.0 of 10

    A TRGB distance measurement places [TT2009] 25 at about 10.3 megaparsecs, confirming it as a satellite of NGC 891.

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