第九行星
參考資料

1 2 3 4 5  Brown, Michael E.; Batygin, Konstantin. . The Astronomical Journal. 31 January 2022, 163 (2): 102. Bibcode:2022AJ....163..102B. S2CID 239768690. arXiv:2110.13117 . doi:10.3847/1538-3881/ac32dd .
1 2 3 4 5 6 7 8 9  Batygin, Konstantin; Adams, Fred C.; Brown, Michael E.; Becker, Juliette C. . Physics Reports. 2019, 805: 1–53. Bibcode:2019PhR...805....1B. S2CID 119248548. arXiv:1902.10103 . doi:10.1016/j.physrep.2019.01.009.
1 2 3 4 5  Brown, Michael E.; Batygin, Konstantin. . The Astronomical Journal. 2021-08-26, 162 (5): 219. Bibcode:2021AJ....162..219B. S2CID 230196275. arXiv:2108.09868 . doi:10.3847/1538-3881/ac2056 .
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20  Batygin, Konstantin; Brown, Michael E. . The Astronomical Journal. 2016, 151 (2): 22. Bibcode:2016AJ....151...22B. S2CID 2701020. arXiv:1601.05438 . doi:10.3847/0004-6256/151/2/22 .
1 2 3 4 5 6 7 8  Trujillo, Chadwick A.; Sheppard, Scott S.  (PDF). Nature. 2014, 507 (7493): 471–474  [20 January 2016]. Bibcode:2014Natur.507..471T. PMID 24670765. S2CID 4393431. doi:10.1038/nature13156. （原始内容 (PDF)存档于16 December 2014）.  含有連結內容需訂閱查看的頁面 (link)
1 2 3 4  Burdick, Alan. . The New Yorker. 20 January 2016  [20 January 2016]. （原始内容存档于21 January 2016）.
↑  Lawler, Samantha. . The Conversation. 25 May 2020  [26 May 2020]. （原始内容存档于29 May 2020）.
1 2  Mustill, Alexander J.; Raymond, Sean N.; Davies, Melvyn B. . Monthly Notices of the Royal Astronomical Society: Letters. 21 July 2016, 460 (1): L109–L113. Bibcode:2016MNRAS.460L.109M. S2CID 119229382. arXiv:1603.07247 . doi:10.1093/mnrasl/slw075.
1 2 3 4  Brown, Michael E.; Batygin, Konstantin. . The Astrophysical Journal Letters. 2016, 824 (2): L23. Bibcode:2016ApJ...824L..23B. S2CID 10904017. arXiv:1603.05712 . doi:10.3847/2041-8205/824/2/L23 .
↑  Luhman, Kevin L. . The Astrophysical Journal. 2014, 781 (4): 4. Bibcode:2014ApJ...781....4L. S2CID 122930471. doi:10.1088/0004-637X/781/1/4.
↑  Meisner, A.M.; Bromley, B.C.; Kenyon, S.J.; Anderson, T.E. . The Astronomical Journal. 2017, 155 (4): 166. Bibcode:2018AJ....155..166M. S2CID 119504867. arXiv:1712.04950 . doi:10.3847/1538-3881/aaae70 .
↑  Hand, Eric. . Science. 20 January 2016  [20 January 2016]. doi:10.1126/science.aae0237. （原始内容存档于20 January 2016）.
↑  Morton Grosser. . Isis. 1964, 55 (2): 163–183. JSTOR 228182. S2CID 144255699. doi:10.1086/349825.
↑  Tombaugh, Clyde W. . Astronomical Society of the Pacific Leaflets. 1946, 5 (209): 73–80. Bibcode:1946ASPL....5...73T.
↑  Ken Croswell. . New York: The Free Press. 1997: 57–58. ISBN 978-0-684-83252-4.
↑  Browne, Malcolm W. . The New York Times. 1 June 1993  [9 February 2019]. （原始内容存档于1 April 2019）.
↑  Millholland, Sarah; Laughlin, Gregory. . The Astronomical Journal. 2017, 153 (3): 91. Bibcode:2017AJ....153...91M. S2CID 119325788. arXiv:1612.07774 . doi:10.3847/1538-3881/153/3/91 .
↑  Kirkwood, D. . The Observatory. 1880, 3: 439–447  [17 January 2019]. Bibcode:1880Obs.....3..439K. （原始内容存档于3 November 2019）.
↑  Wall, Mike. . Space.com. 24 August 2011  [7 February 2016]. （原始内容存档于2 February 2016）.
↑  Brown, Michael E.; Trujillo, Chadwick; Rabinowitz, David. . The Astrophysical Journal. 2004, 617 (1): 645–649. Bibcode:2004ApJ...617..645B. S2CID 7738201. arXiv:astro-ph/0404456 . doi:10.1086/422095.
↑  Sample, Ian. . The Guardian. 26 March 2014  [18 July 2016]. （原始内容存档于29 April 2016）.
↑  Mortillaro, Nicole. . Global News. 9 February 2016  [10 February 2016]. （原始内容存档于10 February 2016）. Template:-'It was that search for more objects like Sedna ... led to the realization ... that they're all being pulled off in one direction by something. And that's what finally led us down the hole that there must be a big planet out there.' —Mike Brown
↑  Wolchover, Natalie. . LiveScience. 25 May 2012  [7 February 2016]. （原始内容存档于30 January 2016）. More work is needed to determine whether Sedna and the other scattered disc objects were sent on their circuitous trips round the Sun by a star that passed by long ago, or by an unseen planet that exists in the solar system right now. Finding and observing the orbits of other distant objects similar to Sedna will add more data points to astronomers' computer models.
↑  Lovett, Richard A. . National Geographic News. 12 May 2012  [18 July 2016]. （原始内容存档于10 July 2016）.
↑  Gomes, Rodney. . Icarus. 2015, 258: 37–49. Bibcode:2015Icar..258...37G. doi:10.1016/j.icarus.2015.06.020.
1 2 3  de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl. . Monthly Notices of the Royal Astronomical Society Letters. 2014, 443 (1): L59–L63. Bibcode:2014MNRAS.443L..59D. S2CID 118622180. arXiv:1406.0715 . doi:10.1093/mnrasl/slu084.
↑  de la Fuente Marcos, C.; de la Fuente Marcos, R. . Astronomy and Astrophysics Letters. 18 February 2021, 646: L14 (9 pp)  [18 February 2021]. Bibcode:2021A&A...646L..14D. S2CID 231802033. arXiv:2102.02220 . doi:10.1051/0004-6361/202140311. （原始内容存档于18 February 2021）.
↑  . The Search for Planet Nine (Blog). 20 January 2016. （原始内容存档于30 January 2016）.
1 2  Batygin, Konstantin; Brown, Michael E. . The Astrophysical Journal Letters. 2016, 833 (1): L3. Bibcode:2016ApJ...833L...3B. S2CID 6751947. arXiv:1610.04992 . doi:10.3847/2041-8205/833/1/L3 .
↑  Gomes, Rodney; Deienno, Rogerio; Morbidelli, Alessandro. . The Astronomical Journal. 2016, 153 (1): 27. Bibcode:2017AJ....153...27G. S2CID 118330945. arXiv:1607.05111 . doi:10.3847/1538-3881/153/1/27 .
↑  . NASA Solar System Exploration.   [2019-05-14]. （原始内容存档于19 October 2019）.
↑  Michael E. Brown. . 19:06. 3 March 2017  [15 March 2017]. （原始内容存档于6 April 2017） –YouTube.
↑  Batygin, Konstantin; Brown, Mike. . The Search for Planet Nine. Michael E. Brown and Konstantin Batygin. RA/Dec chart. 20 January 2016  [24 January 2016]. （原始内容存档于30 January 2016）.
↑  Lemonick, Michael D. . Scientific American. video. 20 January 2016  [22 January 2015]. （原始内容存档于22 January 2016）.
↑  Becker, Adam; Grossman, Lisa; Aron, Jacob. . New Scientist. 22 January 2016  [25 January 2016]. （原始内容存档于24 January 2016）.
1 2 3 4 5  Achenbach, Joel; Feltman, Rachel. . The Washington Post. 20 January 2016  [20 January 2016]. （原始内容存档于20 January 2016）.
↑  Margot, Jean-Luc. . University of California at Los Angeles. 22 January 2016  [18 July 2016]. （原始内容存档于1 April 2016）.
↑  Margot, Jean-Luc. . The Astronomical Journal. 2015, 150 (6): 185. Bibcode:2015AJ....150..185M. S2CID 51684830. arXiv:1507.06300 . doi:10.1088/0004-6256/150/6/185.
↑  Bromley, Benjamin C.; Kenyon, Scott J. . The Astrophysical Journal. 22 July 2016, 826 (1): 64. Bibcode:2016ApJ...826...64B. S2CID 118448057. arXiv:1603.08010 . doi:10.3847/0004-637X/826/1/64 .
↑  Chang, Kenneth. . The New York Times. 20 January 2016  [18 July 2016]. （原始内容存档于24 January 2016）.
↑  Totten, Sanden. . 89.3 KPCC. 20 January 2016  [18 July 2016]. （原始内容存档于6 July 2016）.
↑  Bailey, Nora; Fabrycky, Daniel. . The Astronomical Journal. 2019, 158 (2): 94. Bibcode:2019AJ....158...94B. S2CID 158047152. arXiv:1905.07044 . doi:10.3847/1538-3881/ab2d2a .
↑  D'Angelo, G.; Lissauer, J.J. . Deeg H., Belmonte J.  (编). . Springer International Publishing AG. 2018: 2319–2343. Bibcode:2018haex.bookE.140D. ISBN 978-3-319-55332-0. S2CID 116913980. arXiv:1806.05649 . doi:10.1007/978-3-319-55333-7_140.
↑  Izidoro, André; Morbidelli, Alessandro; Raymond, Sean N.; Hersant, Franck; Pierens, Arnaud. . Astronomy & Astrophysics. 2015, 582: A99. Bibcode:2015A&A...582A..99I. S2CID 118356267. arXiv:1506.03029 . doi:10.1051/0004-6361/201425525.
↑  Carrera, Daniel; Gorti, Uma; Johansen, Anders; Davies, Melvyn B. . The Astrophysical Journal. 2017, 839 (1): 16. Bibcode:2017ApJ...839...16C. S2CID 119472343. arXiv:1703.07895 . doi:10.3847/1538-4357/aa6932 .
↑  Eriksson, Linn E.J.; Mustill, Alexander J.; Johansen, Anders. . Monthly Notices of the Royal Astronomical Society. 2017, 475 (4): 4609. Bibcode:2018MNRAS.475.4609E. S2CID 119230823. arXiv:1710.08295 . doi:10.1093/mnras/sty111.
↑  Kenyon, Scott J.; Bromley, Benjamin C. . The Astrophysical Journal. 2016, 825 (1): 33. Bibcode:2016ApJ...825...33K. S2CID 119212968. arXiv:1603.08008 . doi:10.3847/0004-637X/825/1/33 .
1 2  Li, Gongjie; Adams, Fred C. . The Astrophysical Journal Letters. 2016, 823 (1): L3. Bibcode:2016ApJ...823L...3L. S2CID 15890864. arXiv:1602.08496 . doi:10.3847/2041-8205/823/1/L3 .
↑  Siraj, Amir; Loeb, Abraham. . The Astrophysical Journal. 2020-08-18, 899 (2): L24. Bibcode:2020ApJ...899L..24S. ISSN 2041-8213. S2CID 220665422. arXiv:2007.10339 . doi:10.3847/2041-8213/abac66  （英语）.
↑  Rabie, Passant. . Inverse. 20 August 2020  [28 August 2020]. （原始内容存档于22 August 2020）.
↑  Parker, Richard J.; Lichtenberg, Tim; Quanz, Sascha P. . Monthly Notices of the Royal Astronomical Society: Letters. 2017, 472 (1): L75–L79. Bibcode:2017MNRAS.472L..75P. S2CID 10792152. arXiv:1709.00418 . doi:10.1093/mnrasl/slx141.
↑  Brennan, Pat. . Jet Propulsion Laboratory.   [13 October 2017]. （原始内容存档于16 October 2017）.
1 2 3 4  Kaib, Nathan A.; Pike, Rosemary; Lawler, Samantha; Kovalik, Maya; Brown, Christopher; Alexandersen, Mike; Bannister, Michele T.; Gladman, Brett J.; Petit, Jean-Marc. . The Astronomical Journal. 2019, 158 (1): 43. Bibcode:2019AJ....158...43K. PMC 6677154 . PMID 31379385. arXiv:1905.09286 . doi:10.3847/1538-3881/ab2383 .
1 2 3 4  Nesvorny, D.; Vokrouhlicky, D.; Dones, L.; Levison, H.F.; Kaib, N.; Morbidelli, A. . The Astrophysical Journal. 2017, 845 (1): 27. Bibcode:2017ApJ...845...27N. S2CID 119399322. arXiv:1706.07447 . doi:10.3847/1538-4357/aa7cf6 .
↑  Stirone, Shannon. . Astronomy. 19 October 2016  [29 July 2017]. （原始内容存档于10 August 2017）.
1 2  Koponyás, Barbara.  (PDF). 5th Austrian Hungarian Workshop in Vienna. 10 April 2010  [18 July 2016]. （原始内容存档 (PDF)于14 March 2016）.
↑  McDonald, Bob. . CBC News. 24 January 2016  [18 July 2016]. （原始内容存档于5 February 2016）. It's like seeing a disturbance on the surface of water but not knowing what caused it. Perhaps it was a jumping fish, a whale or a seal. Even though you didn't actually see it, you could make an informed guess about the size of the object and its location by the nature of the ripples in the water.
↑  Lakdawalla, Emily. . The Planetary Society. 20 January 2016  [18 July 2016]. （原始内容存档于23 April 2016）.
↑  Hands, T. O.; Dehnen, W.; Gration, A.; Stadel, J.; Moore, B. . Monthly Notices of the Royal Astronomical Society. 2019, 490 (1): 21–36. Bibcode:2019MNRAS.490...21H. S2CID 118597453. arXiv:1901.02465 . doi:10.1093/mnras/stz1069.
↑  de León, Julia; de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl. . Monthly Notices of the Royal Astronomical Society: Letters. 2017, 467 (1): L66–L70. Bibcode:2017MNRAS.467L..66D. S2CID 119419889. arXiv:1701.02534 . doi:10.1093/mnrasl/slx003.
↑  Instituto de Astrofísica de Canarias (IAC). . ScienceDaily.   [29 July 2017]. （原始内容存档于29 July 2017）.
↑  de la Fuente Marcos, C.; de la Fuente Marcos, R.; Aarseth, S.J. . Astrophysics and Space Science. 1 November 2017, 362 (11): 198. Bibcode:2017Ap&SS.362..198D. S2CID 118890903. arXiv:1709.06813 . doi:10.1007/s10509-017-3181-1.
↑  Sheppard, Scott S., Scott S.; Trujillo, Chadwick. . The Astronomical Journal. 2016, 152 (6): 221. Bibcode:2016AJ....152..221S. S2CID 119187392. arXiv:1608.08772 . doi:10.3847/1538-3881/152/6/221 .
↑  de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl. . Monthly Notices of the Royal Astronomical Society Letters. 2017, 471 (1): L61–L65. Bibcode:2017MNRAS.471L..61D. S2CID 55469849. arXiv:1706.06981 . doi:10.1093/mnrasl/slx106.
↑  Spanish Foundation for Science and Technology (FECYT). . phys.org.   [29 July 2017]. （原始内容存档于30 July 2017）.
↑  de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl. . Monthly Notices of the Royal Astronomical Society. 1 September 2021, 506 (1): 633–649  [8 July 2021]. Bibcode:2021MNRAS.506..633D. arXiv:2106.08369 . doi:10.1093/mnras/stab1756. （原始内容存档于19 October 2021）.
↑  de la Fuente Marcos, Carlos; de la Fuente Marcos, Raúl. . Monthly Notices of the Royal Astronomical Society Letters. 1 May 2022, 512 (1): L6–L10  [2024-04-10]. Bibcode:2022MNRAS.512L...6D. arXiv:2202.01693 . doi:10.1093/mnrasl/slac012. （原始内容存档于2023-04-09）.
↑  Brown, Michael E. . The Search for Planet Nine. Michael E. Brown and Konstantin Batygin.   [19 October 2017]. （原始内容存档于20 October 2017）.
↑  Becker, Juliette C.; Adams, Fred C.; Khain, Tali; Hamilton, Stephanie J.; Gerdes, David. . The Astronomical Journal. 2017, 154 (2): 61. Bibcode:2017AJ....154...61B. S2CID 111384673. arXiv:1706.06609 . doi:10.3847/1538-3881/aa7aa2 .
1 2 3  Lawler, S.M.; Shankman, C.; Kaib, N.; Bannister, M.T.; Gladman, B.; Kavelaars, J.J. . The Astronomical Journal. 29 December 2016, 153 (1): 33 [21 May 2016]. Bibcode:2017AJ....153...33L. S2CID 54854087. arXiv:1605.06575 . doi:10.3847/1538-3881/153/1/33 .
↑  Cáceres, Jessica; Gomes, Rodney. . The Astronomical Journal. 2018, 156 (4): 157. Bibcode:2018AJ....156..157C. S2CID 119064276. arXiv:1808.01248 . doi:10.3847/1538-3881/aad77a .
↑  Scharping, Nathaniel. . Discover. 20 January 2016  [18 July 2016]. （原始内容存档于16 July 2016）.
1 2  Allen, Kate. . Toronto Star. 20 January 2016  [18 July 2016]. （原始内容存档于17 April 2016）.
1 2  Beust, H. . Astronomy & Astrophysics. 2016, 590: L2. Bibcode:2016A&A...590L...2B. S2CID 53994177. arXiv:1605.02473 . doi:10.1051/0004-6361/201628638.
1 2 3 4 5  Batygin, Konstantin; Morbidelli, Alessandro. . The Astronomical Journal. 2017, 154 (6): 229. Bibcode:2017AJ....154..229B. S2CID 119704953. arXiv:1710.01804 . doi:10.3847/1538-3881/aa937c .
1 2  Li, Gongjie; Hadden, Samuel; Payne, Matthew; Holman, Matthew J. . The Astronomical Journal. 2018, 156 (6): 263. Bibcode:2018AJ....156..263L. S2CID 118898729. arXiv:1806.06867 . doi:10.3847/1538-3881/aae83b .
↑  Hruska, Joel. . ExtremeTech. 20 January 2016  [18 July 2016]. （原始内容存档于28 July 2016）.
1 2  Siegel, Ethan. . Forbes. 20 January 2016  [22 January 2016]. （原始内容存档于14 October 2017）.
↑  . Minor Planet Center.   [4 February 2016]. （原始内容存档于2 August 2017）.
↑  Brasser, R.; Schwamb, M.E.; Lykawka, P.S.; Gomes, R.S. . Monthly Notices of the Royal Astronomical Society. 2012, 420 (4): 3396–3402. Bibcode:2012MNRAS.420.3396B. S2CID 56403467. arXiv:1111.7037 . doi:10.1111/j.1365-2966.2011.20264.x.
↑  Williams, Matt. . Universe Today. 10 August 2015  [25 February 2019]. （原始内容存档于23 January 2018）.
↑  Köhne, Tobias; Batygin, Konstantin. . Celestial Mechanics and Dynamical Astronomy. 2020, 132 (9): 44. Bibcode:2020CeMDA.132...44K. S2CID 221319701. arXiv:2008.11242 . doi:10.1007/s10569-020-09985-1.
↑  Gibbs, W. Wayt. . IEEE Spectrum. August 2017  [1 August 2017]. （原始内容存档于1 August 2017）.
1 2  Levenson, Thomas. . The Atlantic. 25 January 2016  [18 July 2016]. （原始内容存档于19 October 2021）. Template:-'We plotted the real data on top of the model' Batyagin recalls, and they fell 'exactly where they were supposed to be.' That was, he said, the epiphany. 'It was a dramatic moment. This thing I thought could disprove it turned out to be the strongest evidence for Planet Nine.'
↑  Grush, Loren. . The Verge. 20 January 2016  [18 July 2016]. （原始内容存档于29 July 2016）. The statistics do sound promising, at first. The researchers say there's a 1 in 15,000 chance that the movements of these objects are coincidental and don't indicate a planetary presence at all. ... 'When we usually consider something as clinched and air tight, it usually has odds with a much lower probability of failure than what they have,' says Sara Seager, a planetary scientist at MIT. For a study to be a slam dunk, the odds of failure are usually 1 in 1,744,278. ... But researchers often publish before they get the slam-dunk odds, in order to avoid getting scooped by a competing team, Seager says. Most outside experts agree that the researchers' models are strong. And Neptune was originally detected in a similar fashion—by researching observed anomalies in the movement of Uranus. Additionally, the idea of a large planet at such a distance from the Sun isn't actually that unlikely, according to Bruce Macintosh, a planetary scientist at Stanford University.
↑  Crocket, Christopher. . Science News. 31 January 2016  [7 February 2016]. （原始内容存档于6 February 2016）. Template:-'It's exciting and very compelling work,' says Meg Schwamb, a planetary scientist at Academia Sinica in Taipei, Taiwan. But only six bodies lead the way to the putative planet. 'Whether that's enough is still a question.'
↑  . PBS NewsHour. 22 January 2016  [18 July 2016]. （原始内容存档于22 July 2016）. Template:-'Right now, any good scientist is going to be skeptical, because it's a pretty big claim. And without the final evidence that it's real, there is always that chance that it's not. So, everybody should be skeptical. But I think it's time to mount this search. I mean, we like to think of it as, we have provided the treasure map of where this ninth planet is, and we have done the starting gun, and now it's a race to actually point your telescope at the right spot in the sky and make that discovery of planet nine.' —Mike Brown
↑  Fecht, Sarah. . Popular Science. 22 January 2016  [18 July 2016]. （原始内容存档于3 May 2016）.
1 2  Choi, Charles Q. . Scientific American. 25 October 2016  [21 March 2017]. （原始内容存档于28 July 2017）.
↑  Siegel, Ethan. . Forbes. 3 November 2015  [22 January 2016]. （原始内容存档于28 January 2016）.
↑  Siegel, Ethan. . Forbes. 14 September 2018  [17 September 2018]. （原始内容存档于18 September 2018）.
↑  Beatty, Kelly. . Sky & Telescope. 26 March 2014  [18 July 2016]. （原始内容存档于29 January 2016）.
↑  Bernardinelli, Pedro H.; Bernstein, Gary M.; Sako, Masao; Liu, Tongtian; Saunders, William R.; Khain, Tali; Lin, Hsing Wen; Gerdes, David W.; Brout, Dillon; Adams, Fred C.; Belyakov, Matthew; Somasundaram, Aditya Inada; Sharma, Lakshay; Locke, Jennifer; Franson, Kyle; Becker, Juliette C.; Napier, Kevin; Markwardt, Larissa; Annis, James; Abbott, T. M. C.; Avila, S.; Brooks, D.; Burke, D. L.; Rosell, A. Carnero; Kind, M. Carrasco; Castander, F. J.; Costa, L. N. da; Vicente, J. De; Desai, S.;  et al. . The Astrophysical Journal Supplement Series. 2020, 247 (1): 32. Bibcode:2020ApJS..247...32B. S2CID 202537605. arXiv:1909.01478 . doi:10.3847/1538-4365/ab6bd8 .
↑  Conversation, Samantha Lawler, The. . ScienceAlert. 26 May 2020  [27 May 2020]. （原始内容存档于30 May 2020）.
↑  Lawler, Samantha. . The Conversation. 25 May 2020  [19 October 2021]. （原始内容存档于7 September 2021）.
↑  . 29 May 2020  [9 June 2020]. （原始内容存档于9 June 2020）.
1 2  Shankman, Cory;  et al. . The Astronomical Journal. 2017, 154 (2): 50  [3 September 2018]. Bibcode:2017AJ....154...50S. S2CID 3535702. arXiv:1706.05348 . doi:10.3847/1538-3881/aa7aed . hdl:10150/625487. （原始内容存档于14 January 2019）.
↑  Siegel, Ethan. . Starts with a Bang. Forbes.   [17 September 2018]. （原始内容存档于18 September 2018）.
↑  Ratner, Paul. . Big Think. 23 April 2020  [25 April 2020]. （原始内容存档于30 April 2020）.
↑  Bernardelli, Pedro;  et al. . The Planetary Science Journal. 2020, 1 (2): 28. Bibcode:2020PSJ.....1...28B. S2CID 213175490. arXiv:2003.08901 . doi:10.3847/PSJ/ab9d80 .
↑  Napier, J. K.;  et al. . The Planetary Science Journal. 2021, 2 (2): 59. Bibcode:2021PSJ.....2...59N. S2CID 231861808. arXiv:2102.05601 . doi:10.3847/PSJ/abe53e .
↑  Brown, Michael E. . The Astronomical Journal. 2017, 154 (2): 65. Bibcode:2017AJ....154...65B. S2CID 56043830. arXiv:1706.04175 . doi:10.3847/1538-3881/aa79f4 .
↑  Brown, Michael E.; Batygin, Konstantin.  (PDF). The Astronomical Journal. 2019, 157 (2): 62  [22 January 2019]. Bibcode:2019AJ....157...62B. S2CID 119361145. arXiv:1901.07115 . doi:10.3847/1538-3881/aaf051 . （原始内容存档 (PDF)于23 January 2019）.
1 2  Shankman, Cory; Kavelaars, J.J.; Lawler, Samantha; Bannister, Michelle. . The Astronomical Journal. 2017, 153 (2): 63  [3 September 2018]. Bibcode:2017AJ....153...63S. S2CID 56067774. arXiv:1610.04251 . doi:10.3847/1538-3881/153/2/63 . （原始内容存档于14 January 2019）.
1 2  Madigan, Ane-Marie; McCourt, Michael. . Monthly Notices of the Royal Astronomical Society: Letters. 2016, 457 (1): L89–93. Bibcode:2016MNRAS.457L..89M. S2CID 119181329. arXiv:1509.08920 . doi:10.1093/mnrasl/slv203.
↑  Madigan, Ann-Marie; Zderic, Alexander; McCourt, Michael; Fleisig, Jacob. . The Astronomical Journal. 2018, 156 (4): 141. Bibcode:2018AJ....156..141M. PMC 6677160 . PMID 31379384. arXiv:1805.03651 . doi:10.3847/1538-3881/aad95c .
1 2 3  . Inverse. 16 June 2022  [2023-03-25]. （原始内容存档于2024-05-05） （英语）.
↑  Wall, Mike. . Space.com. 4 February 2016  [8 February 2016]. （原始内容存档于8 February 2016）. We need more mass in the outer solar system," she (Madigan) said. "So it can either come from having more minor planets, and their self-gravity will do this to themselves naturally, or it could be in the form of one single massive planet—a Planet Nine. So it's a really exciting time, and we're going to discover one or the other.
↑  Snell, Jason. . Yahoo! Tech. 5 February 2016  [18 July 2016]. （原始内容存档于18 August 2016）.
↑  Fan, Siteng; Batygin, Konstantin. . The Astrophysical Journal. 2017, 851 (2): L37. Bibcode:2017ApJ...851L..37F. S2CID 55887558. arXiv:1712.07193 . doi:10.3847/2041-8213/aa9f0b .
↑  Skibba, Ramin. . Scientific American.   [7 May 2020]. （原始内容存档于7 May 2020）.
↑  Zderic, Alexander; Collier, Angela; Tiongco, Maria; Madigan, Ann-Marie. . The Astrophysical Journal. 2020, 895 (2): L27. Bibcode:2020ApJ...895L..27Z. S2CID 214794969. arXiv:2004.01198 . doi:10.3847/2041-8213/ab91a0 .
↑  Zderic, Alexander; Madigan, Ann-Marie. . The Astronomical Journal. 2020, 160 (1): 50. Bibcode:2020AJ....160...50Z. S2CID 214743005. arXiv:2004.00037 . doi:10.3847/1538-3881/ab962f .
↑  Zderic, Alexander; Tiongco, Maria; Collier, Angela; Wernke, Heather; Generozov, Aleksey; Madigan, Ann-Marie. . The Astronomical Journal. 2021, 162 (6): 278. Bibcode:2021AJ....162..278Z. S2CID 235485138. arXiv:2106.09739 . doi:10.3847/1538-3881/ac2def .
↑  Sefilian, Antranik A.; Touma, Jihad R. . The Astronomical Journal. 2019, 157 (2): 59. Bibcode:2019AJ....157...59S. PMC 7822068 . PMID 33551453. S2CID 118965345. arXiv:1804.06859 . doi:10.3847/1538-3881/aaf0fc .
↑  Patel, Neel V. . Popular Science. 21 January 2019  [21 January 2019]. （原始内容存档于10 October 2019）.
↑  Dvorsky, George. . Gizmodo. 22 January 2019  [23 January 2019]. （原始内容存档于23 January 2019）.
1 2  Malhotra, Renu; Volk, Kathryn; Wang, Xianyu. . The Astrophysical Journal Letters. 2016, 824 (2): L22. Bibcode:2016ApJ...824L..22M. S2CID 118422279. arXiv:1603.02196 . doi:10.3847/2041-8205/824/2/L22 .