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Ghez, A. M.; et al. (Dezembro de 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». Astrophysical Journal. 689 (2): 1044–1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738
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Boehle, A; Ghez, A. M; Schödel, R; Meyer, L; Yelda, S; Albers, S; Martinez, G. D; Becklin, E. E; Do, T; Lu, J. R; Matthews, K; Morris, M. R; Sitarski, B; Witzel, G (19 de julho de 2016). «An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis». The Astrophysical Journal. 830 (1). 17 páginas. Bibcode:2016ApJ...830...17B. arXiv:1607.05726. doi:10.3847/0004-637X/830/1/17
Ghez, A. M.; et al. (Dezembro de 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». Astrophysical Journal. 689 (2): 1044–1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738
Boehle, A; Ghez, A. M; Schödel, R; Meyer, L; Yelda, S; Albers, S; Martinez, G. D; Becklin, E. E; Do, T; Lu, J. R; Matthews, K; Morris, M. R; Sitarski, B; Witzel, G (19 de julho de 2016). «An Improved Distance and Mass Estimate for Sgr A* from a Multistar Orbit Analysis». The Astrophysical Journal. 830 (1). 17 páginas. Bibcode:2016ApJ...830...17B. arXiv:1607.05726. doi:10.3847/0004-637X/830/1/17
Ghez, A. M.; et al. (Dezembro de 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». Astrophysical Journal. 689 (2): 1044–1062. Bibcode:2008ApJ...689.1044G. arXiv:0808.2870. doi:10.1086/592738
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