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A Ghost in Boötes: The Least-Luminous Disrupted Dwarf Galaxy

  • Authors: Vedant Chandra, Charlie Conroy, Nelson Caldwell, Ana Bonaca, Rohan P. Naidu, Dennis Zaritsky, Phillip A. Cargile, Jiwon Jesse Han, Benjamin D. Johnson, Joshua S. Speagle, 佳士 沈, Yuan-Sen Ting, 源森 丁, Turner Woody

Vedant Chandra et al 2022 The Astrophysical Journal 940 .

  • Provider: AAS Journals

Caption: Figure 4.

Tinsley–Wallerstein diagram of Specter members using measurements from H3, excluding the BHB star. We overlay abundance measurements for ultrafaint dwarf galaxies with similar luminosities (Frebel et al. 2014; Ji et al. 2016). We also show stars in the Sextans dwarf galaxy observed by H3, which should be on an identical metallicity scale to the Specter stars.

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