The Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Asada, Keiichi; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Bintley, Dan; Blackburn, Lindy; Boland, Wilfred; Bouman, Katherine L.; Bower, Geoffrey C. (10 de abril de 2019). «First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring». The Astrophysical Journal. 875 (1): See especially Fig. 5. Bibcode:2019ApJ...875L...5E. ISSN2041-8213. arXiv:1906.11242. doi:10.3847/2041-8213/ab0f43. hdl:10150/633753
Ghez, A.; Klein, B.; Morris, M.; Becklin, E (1998). «High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy». The Astrophysical Journal. 509 (2): 678–686. Bibcode:1998ApJ...509..678G. arXiv:astro-ph/9807210. doi:10.1086/306528
The Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Asada, Keiichi; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Bintley, Dan; Blackburn, Lindy; Boland, Wilfred; Bouman, Katherine L.; Bower, Geoffrey C. (10 de abril de 2019). «First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring». The Astrophysical Journal. 875 (1): See especially Fig. 5. Bibcode:2019ApJ...875L...5E. ISSN2041-8213. arXiv:1906.11242. doi:10.3847/2041-8213/ab0f43. hdl:10150/633753
Ghez, A.; Klein, B.; Morris, M.; Becklin, E (1998). «High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy». The Astrophysical Journal. 509 (2): 678–686. Bibcode:1998ApJ...509..678G. arXiv:astro-ph/9807210. doi:10.1086/306528
Ghez, A. M.; et al. (dezembro de 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». The Astrophysical Journal. 689 (2): 1044-1062. Bibcode:2008ApJ...689.1044G. doi:10.1086/592738
Greenstein, Jesse L.; Schmidt, Maarten (julho de 1964), «The Quasi-Stellar Radio Sources 3C 48 and 3C 273», Astrophysical Journal, 140: 1, Bibcode:1964ApJ...140....1G, doi:10.1086/147889.
Ryle, Martin, Sir; Longair, M. S. (1967), «A possible method for investigating the evolution of radio galaxies», Monthly Notices of the Royal Astronomical Society, 136 (2): 123, Bibcode:1967MNRAS.136..123R, doi:10.1093/mnras/136.2.123
Sargent, W. L. W.; et al. (maio de 1978). «Dynamical evidence for a central mass concentration in the galaxy M87». Astrophysical Journal, Part 1. 221: 731–744. Bibcode:1978ApJ...221..731S. doi:10.1086/156077
Balick, B.; Brown, R. L. (dezembro de 1974). «Intense sub-arcsecond structure in the galactic center». Astrophysical Journal. 194 (1): 265–270. Bibcode:1974ApJ...194..265B. doi:10.1086/153242
Harms, Richard J.; et al. (novembro de 1994), «HST FOS spectroscopy of M87: Evidence for a disk of ionized gas around a massive black hole», Astrophysical Journal, Part 2, 435 (1): L35–L38, Bibcode:1994ApJ...435L..35H, doi:10.1086/187588
Miyoshi, Makoto; et al. (janeiro de 1995). «Evidence for a black hole from high rotation velocities in a sub-parsec region of NGC4258». Nature. 373 (6510): 127–129. Bibcode:1995Natur.373..127M. doi:10.1038/373127a0
Magorrian, John; et al. (junho de 1998). «The Demography of Massive Dark Objects in Galaxy Centers». The Astronomical Journal. 115 (6): 2285-2305. Bibcode:1998AJ....115.2285M. doi:10.1086/300353
Genzel, R.; Thatte, N.; Krabbe, A.; Kroker, H.; Tacconi-Garman, L. E. (novembro de 1996). «The Dark Mass Concentration in the Central Parsec of the Milky Way». Astrophysical Journal. 472. 153 páginas. Bibcode:1996ApJ...472..153G. doi:10.1086/178051 !CS1 manut: Nomes múltiplos: lista de autores (link)
Eckart, A.; Genzel, R. (janeiro de 1997). «Stellar proper motions in the central 0.1 PC of the Galaxy». Monthly Notices of the Royal Astronomical Society. 284 (3): 576-598. Bibcode:1997MNRAS.284..576E. doi:10.1093/mnras/284.3.576 !CS1 manut: Nomes múltiplos: lista de autores (link)
Genzel, R.; Eckart, A.; Ott, T.; Eisenhauer, F. (outubro de 1997). «On the nature of the dark mass in the centre of the Milky Way». Monthly Notices of the Royal Astronomical Society. 291 (1): 219-234. Bibcode:1997MNRAS.291..219G. doi:10.1093/mnras/291.1.219 !CS1 manut: Nomes múltiplos: lista de autores (link)
Ghez, A. M.; Klein, B. L.; Morris, M.; Becklin, E. E. (dezembro de 1998). «High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy». The Astrophysical Journal. 509 (2): 678-686. Bibcode:1998ApJ...509..678G. doi:10.1086/306528 !CS1 manut: Nomes múltiplos: lista de autores (link)
Gillessen, S.; et al. (fevereiro de 2009). «Monitoring Stellar Orbits Around the Massive Black Hole in the Galactic Center». The Astrophysical Journal. 692 (2): 1075-1109. Bibcode:2009ApJ...692.1075G. doi:10.1088/0004-637X/692/2/1075
Gillessen, S.; et al. (março de 2017). «An Update on Monitoring Stellar Orbits in the Galactic Center». The Astrophysical Journal. 837 (1): artigo 30, 19 pp. Bibcode:2017ApJ...837...30G. doi:10.3847/1538-4357/aa5c41
Event Horizon Telescope Collaboration; (abril de 2019). «First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole». The Astrophysical Journal Letters. 875 (1): artigo L1, 17 pp. Bibcode:2019ApJ...875L...1E. doi:10.3847/2041-8213/ab0ec7
The Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Asada, Keiichi; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Bintley, Dan; Blackburn, Lindy; Boland, Wilfred; Bouman, Katherine L.; Bower, Geoffrey C. (10 de abril de 2019). «First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring». The Astrophysical Journal. 875 (1): See especially Fig. 5. Bibcode:2019ApJ...875L...5E. ISSN2041-8213. arXiv:1906.11242. doi:10.3847/2041-8213/ab0f43. hdl:10150/633753
Frank, Juhan; King, Andrew; Raine, Derek J. (Janeiro de 2002). «Accretion Power in Astrophysics: Third Edition». Accretion Power in Astrophysics. Cambridge, UK: Cambridge University Press. Bibcode:2002apa..book.....F. ISBN0521620538
Ghez, A.; Klein, B.; Morris, M.; Becklin, E (1998). «High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy». The Astrophysical Journal. 509 (2): 678–686. Bibcode:1998ApJ...509..678G. arXiv:astro-ph/9807210. doi:10.1086/306528
Ghez, A. M.; et al. (dezembro de 2008). «Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits». The Astrophysical Journal. 689 (2): 1044-1062. Bibcode:2008ApJ...689.1044G. doi:10.1086/592738
Schmidt, Maarten (1965), «3C 273: A Star-like Object with Large Red-Shift», in: Robinson, Ivor; Schild, Alfred; Schucking, E.L., Quasi-Stellar Sources and Gravitational Collapse, Proceedings of the 1st Texas Symposium on Relativistic Astrophysics, Chicago: University of Chicago Press, p. 455, Bibcode:1965qssg.conf..455S
Greenstein, Jesse L.; Schmidt, Maarten (julho de 1964), «The Quasi-Stellar Radio Sources 3C 48 and 3C 273», Astrophysical Journal, 140: 1, Bibcode:1964ApJ...140....1G, doi:10.1086/147889.
Appenzeller, I.; Fricke, K. (abril de 1972), «Hydrodynamic Model Calculations for Supermassive Stars I. The Collapse of a Nonrotating 7036149141250000000♠0.75×106M☉ Star», Astronomy and Astrophysics, 18: 10, Bibcode:1972A&A....18...10A
Ryle, Martin, Sir; Longair, M. S. (1967), «A possible method for investigating the evolution of radio galaxies», Monthly Notices of the Royal Astronomical Society, 136 (2): 123, Bibcode:1967MNRAS.136..123R, doi:10.1093/mnras/136.2.123
Sargent, W. L. W.; et al. (maio de 1978). «Dynamical evidence for a central mass concentration in the galaxy M87». Astrophysical Journal, Part 1. 221: 731–744. Bibcode:1978ApJ...221..731S. doi:10.1086/156077
Balick, B.; Brown, R. L. (dezembro de 1974). «Intense sub-arcsecond structure in the galactic center». Astrophysical Journal. 194 (1): 265–270. Bibcode:1974ApJ...194..265B. doi:10.1086/153242
Harms, Richard J.; et al. (novembro de 1994), «HST FOS spectroscopy of M87: Evidence for a disk of ionized gas around a massive black hole», Astrophysical Journal, Part 2, 435 (1): L35–L38, Bibcode:1994ApJ...435L..35H, doi:10.1086/187588
Miyoshi, Makoto; et al. (janeiro de 1995). «Evidence for a black hole from high rotation velocities in a sub-parsec region of NGC4258». Nature. 373 (6510): 127–129. Bibcode:1995Natur.373..127M. doi:10.1038/373127a0
Magorrian, John; et al. (junho de 1998). «The Demography of Massive Dark Objects in Galaxy Centers». The Astronomical Journal. 115 (6): 2285-2305. Bibcode:1998AJ....115.2285M. doi:10.1086/300353
Genzel, R.; Thatte, N.; Krabbe, A.; Kroker, H.; Tacconi-Garman, L. E. (novembro de 1996). «The Dark Mass Concentration in the Central Parsec of the Milky Way». Astrophysical Journal. 472. 153 páginas. Bibcode:1996ApJ...472..153G. doi:10.1086/178051 !CS1 manut: Nomes múltiplos: lista de autores (link)
Eckart, A.; Genzel, R. (janeiro de 1997). «Stellar proper motions in the central 0.1 PC of the Galaxy». Monthly Notices of the Royal Astronomical Society. 284 (3): 576-598. Bibcode:1997MNRAS.284..576E. doi:10.1093/mnras/284.3.576 !CS1 manut: Nomes múltiplos: lista de autores (link)
Genzel, R.; Eckart, A.; Ott, T.; Eisenhauer, F. (outubro de 1997). «On the nature of the dark mass in the centre of the Milky Way». Monthly Notices of the Royal Astronomical Society. 291 (1): 219-234. Bibcode:1997MNRAS.291..219G. doi:10.1093/mnras/291.1.219 !CS1 manut: Nomes múltiplos: lista de autores (link)
Ghez, A. M.; Klein, B. L.; Morris, M.; Becklin, E. E. (dezembro de 1998). «High Proper-Motion Stars in the Vicinity of Sagittarius A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy». The Astrophysical Journal. 509 (2): 678-686. Bibcode:1998ApJ...509..678G. doi:10.1086/306528 !CS1 manut: Nomes múltiplos: lista de autores (link)
Gillessen, S.; et al. (fevereiro de 2009). «Monitoring Stellar Orbits Around the Massive Black Hole in the Galactic Center». The Astrophysical Journal. 692 (2): 1075-1109. Bibcode:2009ApJ...692.1075G. doi:10.1088/0004-637X/692/2/1075
Gillessen, S.; et al. (março de 2017). «An Update on Monitoring Stellar Orbits in the Galactic Center». The Astrophysical Journal. 837 (1): artigo 30, 19 pp. Bibcode:2017ApJ...837...30G. doi:10.3847/1538-4357/aa5c41
Event Horizon Telescope Collaboration; (abril de 2019). «First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole». The Astrophysical Journal Letters. 875 (1): artigo L1, 17 pp. Bibcode:2019ApJ...875L...1E. doi:10.3847/2041-8213/ab0ec7