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Chad Trujillo

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Chad Trujillo
Born (1973-11-22) November 22, 1973 (age 51)
NationalityAmerican
EducationMassachusetts Institute of Technology
University of Hawaiʻi
Known forDiscovery of Eris, Sedna and other trans-Neptunian objects
Scientific career
FieldsPlanetary astronomy
InstitutionsGemini Observatory
Northern Arizona University

Chadwick A. Trujillo (born November 22, 1973) is an American astronomer, discoverer of minor planets and the co-discoverer of Eris, the most massive dwarf planet known in the Solar System.[1][2]

Trujillo works with computer software and has examined the orbits of the numerous trans-Neptunian objects (TNOs), which is the outer area of the Solar System that he specialized in. In late August 2005, it was announced that Trujillo, along with Michael Brown and David Rabinowitz, had discovered Eris in 2003.[2] As a result of the discovery of the satellite Dysnomia, Eris was the first TNO known to be more massive than Pluto.[3]

Career

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Trujillo attended Oak Park and River Forest High School in Oak Park, Illinois. He received his B.Sc. in physics from the Massachusetts Institute of Technology in 1995, and was a member of the Xi chapter of Tau Epsilon Phi, and received his Ph.D. in astronomy from the University of Hawaiʻi in 2000.

Between 2000 and 2003 Trujillo was a postdoctoral scholar at Caltech. In 2003, he started working as an astronomer at the Gemini Observatory in Hawaii.[4]

In 2013 Trujillo became head of the Adaptive Optics/Telescope Department at the Gemini Observatory, and continued until 2016. As of 2016, Trujillo is assistant professor at the department of Astronomy and Planetary Science at Northern Arizona University.[5]

He studies the Kuiper belt and the outer Solar System.

Discoveries

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Minor planets discovered: 62 [6]
see § List of discovered minor planets

Trujillo is credited by the Minor Planet Center with the discovery and co-discovery of 54 numbered minor planets between 1996 and 2013, including many trans-Neptunian objects (TNOs) from the Kuiper belt (see table).[6] The last major TNO, Eris, was at first considered by him, his team, NASA, and many others to be the tenth planet,[4] but the International Astronomical Union assigned it to the new classificatory category of dwarf planet.

The possible dwarf planets Trujillo discovered are:

List of discovered minor planets

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See also: Category:Discoveries by Chad Trujillo

The Minor Planet Center credits Chad Trujillo with the discovery and co-discovery of 57 minor planets during 1996–2013.[6] His numerous co-discoverers were: A D. C. Jewitt, B J. X. Luu, C J. Chen, D K. Berney, E D. J. Tholen, F M. E. Brown, G W. Evans, H S. S. Sheppard, J D. L. Rabinowitz, K A. Udalski, L M. Kubiak, M R. Poleski and N Glenn Smith.

(15874) 1996 TL66 October 9, 1996 list [A][B][C]
(15875) 1996 TP66 October 11, 1996 list [B][A]
(15883) 1997 CR29 February 3, 1997 list [C][A]
(19308) 1996 TO66 October 12, 1996 list [A][B]
(20161) 1996 TR66 October 8, 1996 list [A][B][C]
(24952) 1997 QJ4 August 28, 1997 list [B][A][D]
(24978) 1998 HJ151 April 28, 1998 list [B][E][A]
(26375) 1999 DE9 February 20, 1999 list [B]
(33001) 1997 CU29 February 6, 1997 list [A][B][C]
50000 Quaoar June 4, 2002 list [F]
(59358) 1999 CL158 February 11, 1999 list [B][A]
(60608) 2000 EE173 March 3, 2000 list [B][G]
65489 Ceto March 22, 2003 list [F]
66652 Borasisi September 8, 1999 list [B][A]
79360 Sila-Nunam February 3, 1997 list [B][A][C]
(79969) 1999 CP133 February 11, 1999 list [B][A]
(79978) 1999 CC158 February 15, 1999 list [A][B][H]
(79983) 1999 DF9 February 20, 1999 list [B][A]
(84719) 2002 VR128 November 3, 2002 list [F]
90377 Sedna November 14, 2003 list [F][J]
90482 Orcus February 17, 2004 list [F][J]
(91554) 1999 RZ215 September 8, 1999 list [B][A]
(118228) 1996 TQ66 October 8, 1996 list [C][A][B]
(119951) 2002 KX14 May 17, 2002 list [F]
(120178) 2003 OP32 July 26, 2003 list [F][J]
(120348) 2004 TY364 October 3, 2004 list [F][J]
(126154) 2001 YH140 December 18, 2001 list [F]
(126155) 2001 YJ140 December 20, 2001 list [F][N]
(129746) 1999 CE119 February 10, 1999 list [B][A]
(134568) 1999 RH215 September 7, 1999 list [A][B]
136199 Eris October 21, 2003 list [F][J]
136472 Makemake March 31, 2005 list [F][J]
(137294) 1999 RE215 September 7, 1999 list [B][A]
(137295) 1999 RB216 September 8, 1999 list [A][B]
(148112) 1999 RA216 September 8, 1999 list [A][B]
(168700) 2000 GE147 April 2, 2000 list [A][H]
(175113) 2004 PF115 August 7, 2004 list [F][J]
(181867) 1999 CV118 February 10, 1999 list [A][B]
(181868) 1999 CG119 February 11, 1999 list [B][A]
(181871) 1999 CO153 February 12, 1999 list [B][A]
(181902) 1999 RD215 September 6, 1999 list [B][A]
(208996) 2003 AZ84 January 13, 2003 list [F]
(250112) 2002 KY14 May 19, 2002 list [F]
(307251) 2002 KW14 May 17, 2002 list [F]
(307261) 2002 MS4 June 18, 2002 list [F]
341520 Mors-Somnus October 14, 2007 list [H]
(385201) 1999 RN215 September 7, 1999 list [A][B]
385571 Otrera October 16, 2004 list [H]
385695 Clete October 8, 2005 list [H]
(415720) 1999 RU215 September 7, 1999 list [B][A]
(469306) 1999 CD158 February 10, 1999 list [B][A]
471143 Dziewanna March 13, 2010 list [K][L]
(471165) 2010 HE79 April 21, 2010 list [H][M][K]
(471921) 2013 FC28 March 17, 2013 list [H]
(503858) 1998 HQ151 April 28, 1998 list [E][A][B]
(508792) 2000 FX53 March 31, 2000 list [H][A]
(523597) 2002 QX47 August 26, 2002 list [F]
(523899) 1997 CV29 February 6, 1997 list [C][A][B]
(523983) 1999 RY214 September 6, 1999 list [A][B]
(532037) 2013 FY27 March 17, 2013 list [H]
(532038) 2013 FB28 March 17, 2013 list [H]
541132 Leleākūhonua October 13, 2015 list [E][H]

Satellites and uncredited discoveries

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Object Discovery date Type Credit went to..
Haumea December 28, 2004 DP
(55565) 2002 AW197 January 10, 2002 TNO The Palomar Observatory team with Michael Brown
2012 VP113 November 5, 2012 TNO no official discoverers for unnumbered objects; candidate: S. S. Sheppard
(136108) Haumea I Hiʻiaka January 26, 2005 Satellite Michael Brown and the adaptive-optics team,[9] D. L. Rabinowitz[10]
(136108) Haumea II Namaka July 30, 2005 Satellite Michael Brown and the adaptive-optics team[9]
(136199) Eris I Dysnomia September 10, 2005 Satellite Michael Brown and the adaptive-optics team: M. A. van Dam, A. H. Bouchez, D. Le Mignant, R. D. Campbell, J. C. Y. Chin, A. Conrad, S. K. Hartman, E. M. Johansson, R. E. Lafon, D. L. Rabinowitz, P. J. Stomski Jr., D. M. Summers, and P. L. Wizinowich

Honors and awards

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The main-belt asteroid 12101 Trujillo is named for him.[1]

In 2006 he was named one of the Science Spectrum Magazine Trailblazer, top minority in science.[11]

References

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  1. ^ a b Schmadel, Lutz D. (2007). "(12101) Trujillo". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 776. doi:10.1007/978-3-540-29925-7_8527. ISBN 978-3-540-00238-3.
  2. ^ a b "136199 Eris (2003 UB313)". Minor Planet Center. Retrieved July 26, 2016.
  3. ^ a b Brown, Michael E.; Schaller, Emily L. (June 2007). "The Mass of Dwarf Planet Eris". Science. 316 (5831): 1585. Bibcode:2007Sci...316.1585B. doi:10.1126/science.1139415. PMID 17569855. S2CID 21468196. Retrieved July 26, 2016.
  4. ^ a b "UH Alumnus Chad Trujillo Helps in Discovery of 10th Planet". Nupepa. August 2005. Archived from the original on August 13, 2009. Retrieved July 26, 2016.
  5. ^ "Chad Trujillo CV".
  6. ^ a b c "Minor Planet Discoverers (by number)". Minor Planet Center. September 25, 2018. Retrieved October 16, 2018.
  7. ^ "136108 Haumea (2003 EL61)". Minor Planet Center. Retrieved July 26, 2016.
  8. ^ "136472 Makemake (2005 FY9)". Minor Planet Center. Retrieved July 26, 2016.
  9. ^ a b "Dwarf Planets and their Systems". US Geological Survey Gazetteer of Planetary Nomenclature. Retrieved October 16, 2018.
  10. ^ Brown, M. E.; Bouchez, A. H.; Rabinowitz, D.; Sari, R.; Trujillo, C. A.; van Dam, M.; et al. (October 2005). "Keck Observatory Laser Guide Star Adaptive Optics Discovery and Characterization of a Satellite to the Large Kuiper Belt Object 2003 EL61". The Astrophysical Journal. 632 (1): L45–L48. Bibcode:2005ApJ...632L..45B. doi:10.1086/497641. S2CID 119408563. Retrieved October 16, 2018.
  11. ^ "SCIENCE SPECTRUM MAGAZINE ANNOUNCES TOP MINORITIES IN SCIENCE" (PDF). May 8, 2006. Retrieved April 4, 2018.
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