S2 (恆星)
參考資料

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↑  Paumard, T; Genzel, R; Martins, F; Nayakshin, S; Beloborodov, A. M; Levin, Y; Trippe, S; Eisenhauer, F; Ott, T; Gillessen, S; Abuter, R; Cuadra, J; Alexander, T; Sternberg, A. . The Astrophysical Journal. 2006, 643 (2): 1011–1035. Bibcode:2006ApJ...643.1011P. arXiv:astro-ph/0601268 . doi:10.1086/503273.
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↑  Hees, A. . Physical Review Letters. 2017, 118 (21): 211101. Bibcode:2017PhRvL.118u1101H. arXiv:1705.07902 . doi:10.1103/PhysRevLett.118.211101.
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↑  YouTube上的A short documentary on Sagittarius A*
↑   (PDF).   [2019-03-08]. （原始内容 (PDF)存档于2006-09-06）.
1 2  Ghez, A. M; Klein, B. L; Morris, M; Becklin, E. E. . The Astrophysical Journal. 1998, 509 (2): 678–686. Bibcode:1998ApJ...509..678G. arXiv:astro-ph/9807210 . doi:10.1086/306528.
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↑  .   [2011-10-02]. （原始内容存档于2012-09-25）.
↑  Ghez, Andrea M. (speaker).  (Lecture). Harvard University: Black Hole Initiative. Remarks beginning at 31:55. 19 April 2016  [2019-03-08]. （原始内容存档于2022-01-25）. ...we are '2018 or bust' these days, because at that moment your orbital determination becomes so much better.
↑  . 2018-03-07  [2019-03-08]. （原始内容存档于2019-04-04）.
↑  .   [2011-10-02]. （原始内容存档于2012-09-02）.
↑  Sabha, Nadeen; Eckart, Andreas; Merritt, David; Mohammad Zamaninasab; Gunther Witzel; Macarena García-Marín; Behrang Jalali; Monica Valencia-S.;  et al. . Astronomy and Astrophysics. September 2012, 545: A70. Bibcode:2012A&A...545A..70S. arXiv:1203.2625 . doi:10.1051/0004-6361/201219203.
↑  
Gillessen, S.;  et al. . The Astrophysical Journal. 2009, 692 (2): 1075–1109. Bibcode:2009ApJ...692.1075G. arXiv:0810.4674 . doi:10.1088/0004-637X/692/2/1075.
↑  Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole （页面存档备份，存于）, Genzel et al, Astronomy & Astrophysics, DOI doi:10.1051/0004-6361/201833718, 2018-07-26
↑  Star spotted speeding near black hole at centre of Milky Way -- Chile’s Very Large Telescope tracks S2 star as it reaches mind-boggling speeds by supermassive black hole （页面存档备份，存于）, The Guardian, 2017-07-26
↑  Meyer, L.; Ghez, A. M.; Schödel, R.; Yelda, S.; Boehle, A.; Lu, J. R.; Do, T.; Morris, M. R.; Becklin, E. E.; Matthews, K. . Science. 2012, 338 (6103): 84–87. Bibcode:2012Sci...338...84M. PMID 23042888. arXiv:1210.1294 . doi:10.1126/science.1225506.
↑  . www.eso.org.   [26 July 2018]. （原始内容存档于2019-03-08）.
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