Sandoval, Michael A.; Vo, Richard P.; Romanowsky, Aaron J.; Strader, Jay; Choi, Jieun; Jennings, Zachary G.; Conroy, Charlie; Brodie, Jean P.; Foster, Caroline; Villaume, Alexa; Norris, Mark A.; Janz, Joachim; Forbes, Duncan A. (23 de julio de 2015). «Hiding in Plain Sight: Record-breaking Compact Stellar Systems in the Sloan Digital Sky Survey». The Astrophysical Journal808 (1): L32. Bibcode:2015ApJ...808L..32S. S2CID55254708. arXiv:1506.08828. doi:10.1088/2041-8205/808/1/L32.
Ahn, C. P.; Seth, A. C.; den Brok, M.; Strader, J.; Baumgardt, H.; van den Bosch, R.; Chilingarian, I.; Frank, M.; Hilker, M.; McDermid, R.; Mieske, S.; Romanowsky, A. J.; Spitler, L.; Brodie, J.; Neumayer, N.; Walsh, J. L. (2017). «Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies». Astrophysical Journal839 (2): 72. Bibcode:2017ApJ...839...72A. S2CID55131811. arXiv:1703.09221. doi:10.3847/1538-4357/aa6972.
Willman, Beth; Dalcanton, Julianne J.; Martinez-Delgado, David; West, Andrew A.; Blanton, Michael R.; Hogg, David W.; Barentine, J. C.; Brewington, Howard J.; Harvanek, Michael; Kleinman, S. J.; Krzesinski, Jurek (20 de junio de 2005). «A New Milky Way Dwarf Galaxy in Ursa Major». The Astrophysical Journal(en inglés)626 (2): L85-L88. ISSN0004-637X. doi:10.1086/431760.
Sandoval, Michael A.; Vo, Richard P.; Romanowsky, Aaron J.; Strader, Jay; Choi, Jieun; Jennings, Zachary G.; Conroy, Charlie; Brodie, Jean P.; Foster, Caroline; Villaume, Alexa; Norris, Mark A.; Janz, Joachim; Forbes, Duncan A. (23 de julio de 2015). «Hiding in Plain Sight: Record-breaking Compact Stellar Systems in the Sloan Digital Sky Survey». The Astrophysical Journal808 (1): L32. Bibcode:2015ApJ...808L..32S. S2CID55254708. arXiv:1506.08828. doi:10.1088/2041-8205/808/1/L32.
Ahn, C. P.; Seth, A. C.; den Brok, M.; Strader, J.; Baumgardt, H.; van den Bosch, R.; Chilingarian, I.; Frank, M.; Hilker, M.; McDermid, R.; Mieske, S.; Romanowsky, A. J.; Spitler, L.; Brodie, J.; Neumayer, N.; Walsh, J. L. (2017). «Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies». Astrophysical Journal839 (2): 72. Bibcode:2017ApJ...839...72A. S2CID55131811. arXiv:1703.09221. doi:10.3847/1538-4357/aa6972.
Sandoval, Michael A.; Vo, Richard P.; Romanowsky, Aaron J.; Strader, Jay; Choi, Jieun; Jennings, Zachary G.; Conroy, Charlie; Brodie, Jean P.; Foster, Caroline; Villaume, Alexa; Norris, Mark A.; Janz, Joachim; Forbes, Duncan A. (23 de julio de 2015). «Hiding in Plain Sight: Record-breaking Compact Stellar Systems in the Sloan Digital Sky Survey». The Astrophysical Journal808 (1): L32. Bibcode:2015ApJ...808L..32S. S2CID55254708. arXiv:1506.08828. doi:10.1088/2041-8205/808/1/L32.
Ahn, C. P.; Seth, A. C.; den Brok, M.; Strader, J.; Baumgardt, H.; van den Bosch, R.; Chilingarian, I.; Frank, M.; Hilker, M.; McDermid, R.; Mieske, S.; Romanowsky, A. J.; Spitler, L.; Brodie, J.; Neumayer, N.; Walsh, J. L. (2017). «Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies». Astrophysical Journal839 (2): 72. Bibcode:2017ApJ...839...72A. S2CID55131811. arXiv:1703.09221. doi:10.3847/1538-4357/aa6972.
Willman, Beth; Dalcanton, Julianne J.; Martinez-Delgado, David; West, Andrew A.; Blanton, Michael R.; Hogg, David W.; Barentine, J. C.; Brewington, Howard J.; Harvanek, Michael; Kleinman, S. J.; Krzesinski, Jurek (20 de junio de 2005). «A New Milky Way Dwarf Galaxy in Ursa Major». The Astrophysical Journal(en inglés)626 (2): L85-L88. ISSN0004-637X. doi:10.1086/431760.
Willman, Beth; Dalcanton, Julianne J.; Martinez-Delgado, David; West, Andrew A.; Blanton, Michael R.; Hogg, David W.; Barentine, J. C.; Brewington, Howard J.; Harvanek, Michael; Kleinman, S. J.; Krzesinski, Jurek (20 de junio de 2005). «A New Milky Way Dwarf Galaxy in Ursa Major». The Astrophysical Journal(en inglés)626 (2): L85-L88. ISSN0004-637X. doi:10.1086/431760.
«Evidence for densest galaxy in nearby universe». Phys.org (Omicron Technology Ltd). 24 de septiembre de 2013. Consultado el 25 de septiembre de 2013. «What makes M60-UCD1 so remarkable is that about half of this mass is found within a radius of only about 80 light years. The density of stars is about 15,000 times greater—meaning the stars are about 25 times closer to each other—than in Earth's region of the Milky Way galaxy.»
Sandoval, Michael A.; Vo, Richard P.; Romanowsky, Aaron J.; Strader, Jay; Choi, Jieun; Jennings, Zachary G.; Conroy, Charlie; Brodie, Jean P.; Foster, Caroline; Villaume, Alexa; Norris, Mark A.; Janz, Joachim; Forbes, Duncan A. (23 de julio de 2015). «Hiding in Plain Sight: Record-breaking Compact Stellar Systems in the Sloan Digital Sky Survey». The Astrophysical Journal808 (1): L32. Bibcode:2015ApJ...808L..32S. S2CID55254708. arXiv:1506.08828. doi:10.1088/2041-8205/808/1/L32.
Ahn, C. P.; Seth, A. C.; den Brok, M.; Strader, J.; Baumgardt, H.; van den Bosch, R.; Chilingarian, I.; Frank, M.; Hilker, M.; McDermid, R.; Mieske, S.; Romanowsky, A. J.; Spitler, L.; Brodie, J.; Neumayer, N.; Walsh, J. L. (2017). «Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies». Astrophysical Journal839 (2): 72. Bibcode:2017ApJ...839...72A. S2CID55131811. arXiv:1703.09221. doi:10.3847/1538-4357/aa6972.