van de Ven, G.; van den Bosch, R.C.E.; Verolme, E.K.; de Zeeuw, P.T. (2 Ιανουαρίου 2006). «The dynamical distance and intrinsic structure of the globular cluster ω Centauri». Astronomy and Astrophysics445 (2): 513–543. doi:10.1051/0004-6361:20053061. Bibcode: 2006A&A...445..513V. «best-fit dynamical distance D=4.8±0.3 kpc ... consistent with the canonical value 5.0±0.2 kpc obtained by photometric methods».
Noyola, Eva; Gebhardt, Karl; Bergmann, Marcel (2008). «Gemini and Hubble Space Telescope Evidence for an Intermediate Mass Black Hole in omega Centauri». The Astrophysical Journal676 (2): 1008. doi:10.1086/529002. Bibcode: 2008ApJ...676.1008N.
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van de Ven, G.; van den Bosch, R.C.E.; Verolme, E.K.; de Zeeuw, P.T. (2 Ιανουαρίου 2006). «The dynamical distance and intrinsic structure of the globular cluster ω Centauri». Astronomy and Astrophysics445 (2): 513–543. doi:10.1051/0004-6361:20053061. Bibcode: 2006A&A...445..513V. «best-fit dynamical distance D=4.8±0.3 kpc ... consistent with the canonical value 5.0±0.2 kpc obtained by photometric methods».
Noyola, Eva; Gebhardt, Karl; Bergmann, Marcel (2008). «Gemini and Hubble Space Telescope Evidence for an Intermediate Mass Black Hole in omega Centauri». The Astrophysical Journal676 (2): 1008. doi:10.1086/529002. Bibcode: 2008ApJ...676.1008N.
