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The Discovery of Quasi-stellar Objects behind M31 and M33

  • Authors: Philip Massey, Kathryn F. Neugent, and Emily M. Levesque

2019 The Astronomical Journal 157 227.

  • Provider: AAS Journals

Caption: Figure 5.

Location of M33 objects. The red x’s show the location of the newly found QSOs, while the green x’s denote the previously known QSOs. The red circles show the locations of the newly found galaxies. The image is from the red Digital Sky Survey, and is 1° on a side. North is up and east is to the left. The LGGS fields are outlined in yellow.

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