Chad Trujillo
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Chad Trujillo

Chad Trujillo
Chad Trujillo.jpg
Born (1973-11-22) November 22, 1973 (age 46)
NationalityAmerican
EducationMassachusetts Institute of Technology
University of Hawaii
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

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 Hawaii 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 Physics & Astronomy at Northern Arizona University.[5]

He studies the Kuiper belt and the outer Solar System.

Discoveries

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 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 dwarf planet and plutoid status.

The known plutoids are:

List of discovered minor planets

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 and M R. Poleski.

October 9, 1996 list[A][B][C]
October 11, 1996 list[B][A]
February 3, 1997 list[C][A]
October 12, 1996 list[A][B]
October 8, 1996 list[A][B][C]
August 28, 1997 list[B][A][D]
April 28, 1998 list[B][E][A]
February 20, 1999 list[B]
February 6, 1997 list[A][B][C]
50000 Quaoar June 4, 2002 list[F]
February 11, 1999 list[B][A]
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]
February 11, 1999 list[B][A]
February 15, 1999 list[A][B][H]
February 20, 1999 list[B][A]
November 3, 2002 list[F]
90377 Sedna November 14, 2003 list[F][J]
90482 Orcus February 17, 2004 list[F][J]
September 8, 1999 list[B][A]
October 8, 1996 list[C][A][B]
May 17, 2002 list[F]
July 26, 2003 list[F][J]
October 3, 2004 list[F][J]
December 18, 2001 list[F]
December 20, 2001 list[F]
February 10, 1999 list[B][A]
September 7, 1999 list[A][B]
136199 Eris October 21, 2003 list[F][J]
136472 Makemake March 31, 2005 list[F][J]
September 7, 1999 list[B][A]
September 8, 1999 list[A][B]
September 8, 1999 list[A][B]
April 2, 2000 list[A][H]
August 7, 2004 list[F][J]
February 10, 1999 list[A][B]
February 11, 1999 list[B][A]
February 12, 1999 list[B][A]
September 6, 1999 list[B][A]
January 13, 2003 list[F]
May 19, 2002 list[F]
May 17, 2002 list[F]
June 18, 2002 list[F]
341520 Mors-Somnus October 14, 2007 list[H]
September 7, 1999 list[A][B]
385571 Otrera October 16, 2004 list[H]
385695 Clete October 8, 2005 list[H]
September 7, 1999 list[B][A]
February 10, 1999 list[B][A]
471143 Dziewanna March 13, 2010 list[K][L]
April 21, 2010 list[H][M][K]
March 17, 2013 list[H]
April 28, 1998 list[E][A][B]
March 31, 2000 list[H][A]
August 26, 2002 list[F]

Satellites and uncredited discoveries

Object Discovery date Type Credit went to..
Haumea December 28, 2004 DP José Luis Ortiz Moreno et al.
January 10, 2002 TNO The Palomar Observatory team with Michael Brown
November 5, 2012 TNO no official discoverers for unnumbered objects; candidate: S. S. Sheppard
(136108) Haumea I Hi?iaka 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

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

  1. ^ a b Schmadel, Lutz D. (2007). "(12101) Trujillo". Dictionary of Minor Planet Names - (12101) Trujillo. 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 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. Retrieved 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 2016.
  5. ^ "Chad Trujillo CV" (PDF).
  6. ^ a b c "Minor Planet Discoverers (by number)". Minor Planet Center. September 25, 2018. Retrieved 2018.
  7. ^ "136108 Haumea (2003 EL61)". Minor Planet Center. Retrieved 2016.
  8. ^ "136472 Makemake (2005 FY9)". Minor Planet Center. Retrieved 2016.
  9. ^ a b "Dwarf Planets and their Systems". US Geological Survey Gazetteer of Planetary Nomenclature. Retrieved 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. Retrieved 2018.
  11. ^ "SCIENCE SPECTRUM MAGAZINE ANNOUNCES TOP MINORITIES IN SCIENCE" (PDF). May 8, 2006. Retrieved 2018.

External links


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