Monochromatic globular clusters as a critical test of formation models for the dark matter-deficient galaxies NGC 1052-DF2 and NGC 1052-DF4
It was recently proposed that the dark matter-deficient ultradiffuse galaxies DF2 and DF4 in the NGC 1052 group could be the products of a “bullet dwarf” collision between two gas-rich progenitor galaxies. In this model, DF2 and DF4 formed at the same time in the immediate aftermath of the collision...
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| Hauptverfasser: | , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2022 November 15
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| In: |
The astrophysical journal. Part 2, Letters
Year: 2022, Jahrgang: 940, Heft: 1, Pages: 1-9 |
| ISSN: | 2041-8213 |
| DOI: | 10.3847/2041-8213/ac94d6 |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.3847/2041-8213/ac94d6 Verlag, lizenzpflichtig, Volltext: https://iopscience.iop.org/article/10.3847/2041-8213/ac94d6 
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| Verfasserangaben: | Pieter van Dokkum, Zili Shen, Aaron J. Romanowsky, Roberto Abraham, Charlie Conroy, Shany Danieli, Dhruba Dutta Chowdhury, Michael A. Keim, J.M. Diederik Kruijssen, Joel Leja, and Sebastian Trujillo-Gomez |
| Zusammenfassung: | It was recently proposed that the dark matter-deficient ultradiffuse galaxies DF2 and DF4 in the NGC 1052 group could be the products of a “bullet dwarf” collision between two gas-rich progenitor galaxies. In this model, DF2 and DF4 formed at the same time in the immediate aftermath of the collision, and a strong prediction is that their globular clusters should have nearly identical stellar populations. Here we test this prediction by measuring accurate V 606 − I 814 colors from deep HST/ACS imaging. |
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| Beschreibung: | Gesehen am 31.01.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 2041-8213 |
| DOI: | 10.3847/2041-8213/ac94d6 |