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People > Hilo Scientist > Curriculum Vita
Shadow of a KBO projected onto the surface of the Earth
The four TAOS telescopes on top of Lu-Lin Mountain.
TAOS II Groundbreaking Ceremony.
Cross sectional view of the TAOS II CMOS camera design
Rear View of the TAOS II Telescopes
TAOS II Telescopes
Conceptual design of the TAOS II CMOS cameras.
TAOS II at San Pedro Mártir Observatory
Lehner, Matthew
Adjunct Research Fellow
photo of Lehner, Matthew
Office: Univ. of Pennsylvania
+215 898 5401
Email: mlehner_replace2@_asiaa.sinica.edu.tw

Education and Positions

  • TAOS II Chief Scientist, ASIAA (2008~present)
  • Research Associate, Harvard College Observatory (2004~2007)
  • Research Associate, University of Pennsylvania (2001~2004)
  • Postdoctoral Research Associate, University of Pennsylvania (2000~2001)
  • Postdoctoral Research Associate, University of Sheffield (1997~2000)
  • Postdoctoral Research Associate, University of California San Diego (1996~1997)
  • Ph.D., Physics and Astronomy, University of California San Diego (1988~1996)
  • B.A., Physics, Washington University, St. Louis, MO (1984~1988)

Research Interests

My primary research interest is the outer Solar System. In particular, I am using the blind stellar occultation survey technique to detect small (~1 km), distant objects in the Kuiper Belt and beyond. The size distribution and dynamical characteristics of these objects provide important clues to the formation history of the Solar System. The occultation technique is also uniquely suited to probe the region of 100 to 1000 AU from the Sun, where the discovery of Sedna implies that there may be many more objects that currently can not be discovered with any other astronomical technique. I am a member of the TAOS project, which has been photometrically monitoring thousands of stars with four small telescopes at Lu-Lin Observatory in central Taiwan, in order to search for such occultation events. I am also leading the development of TAOS II, a next generation occultation survey which will use an array of larger telescopes and be located at San Pedro Martir Observatory in Baja California, Mexico. The new survey will be more than a hundred times more powerful than the TAOS I survey, which will allow us to probe even smaller and more distant objects. We plan to start collecting data with the new survey in 2017.

Recent Journal PapersFor complete list of publications

  1. Nelson CA; ...; Lehner MJ, "The MACHO Project HST Follow-Up: The Large Magellanic Cloud Microlensing Source Star" , Astrophysical Journal, 2017, submitted [SCI]
  2. Bannister MT; Alexandersen M; Benecchi SD; Chen Y-T; ...; Lehner MJ; ...; Schwamb ME; ...; Wang S-Y; et al.,, "OSSOS: IV. Discovery of a dwarf planet candidate in the 9:2 resonance with Neptune" , ASTRONOMICAL JOURNAL: 152, 212, 2016-12 [SCI] (Fulltext)
  3. Bannister MT; Kavelaars JJ; Petit J-M; ...; Chen Y-T; ...; Alexandersen M; ...; ...; Lehner MJ; ...; Schwamb ME; ...; Wang S-Y, "The Outer Solar System Origins Survey. I. Design and First-quarter Discoveries" , ASTRONOMICAL JOURNAL: 152(3), 70, 2016-09 [SCI] (Fulltext)
  4. Chen Y-T*; Lin HW; Holman MJ; ...; Wang SY; Lehner MJ, "Discovery of a New Retrograde Trans-Neptunian Object: Hint of a Common Orbital Plane for Low Semimajor Axis, High-inclination TNOs and Centaurs" , Astrophysical Journal Letters: 827(2), 24, 2016-08 [SCI] (Fulltext)
  5. M. Kimura, K. Isogai, T. Kato, Y. Ueda, S. Nakahira, M. Shidatsu, T. Enoto, T. Hori, D. Nogami, C. Littlefield, R. Ishioka, Y.-T. Chen, S.-K. King, C.-Y. Wen, S.-Y. Wang, M. J. Lehner, M. E. Schwamb, J.-H. Wang, Z.-W. Zhang, C. Alcock, T. Axelrod, F. B. Bianco, Y.-I. Byun, W.-P. Chen, K. H. Cook, D.-W. Kim, T. Lee, S. L. Marshall, E. P. Pavlenko, O. I. Antonyuk, K. A. Antonyuk, N. V. Pit, A. A. Sosnovskij, J. V. Babina, A. V. Baklanov, A. S. Pozanenko, E. D. Mazaeva, S. E. Schmalz, I. V. Reva, S. P. Belan, R. Y. Inasaridze, N. Tungalag, A. A. Volnova, I. E. Molotov, E. D. Miguel, K. Kasai, W. L. Stein, P. A. Dubovsky, S. Kiyota, I. Miller, M. Richmond, W. Goff, M. V. Andreev, H. Takahashi, N. Kojiguchi, Y. Sugiura, N. Takeda, E. Yamada, K. Matsumoto, N. James, R. D. Pickard, T. Tordai, Y. Maeda, J. Ruiz, A. Miyashita, L. M. Cook, A. Imada, M. Uemura, "Repetitive Patterns in Rapid Optical Variations in the Nearby Black-Hole Binary V404 Cygni" , NATURE: 529, 54-58, 2016-01 [SCI]
  6. M. J. Lehner, S.-Y. Wang, C. A. Alcock, K. H. Cook, G. Furesz, J. C. Geary, D. Hiriart, P. T. Ho, W. H. Lee, F. Melsheimer, T. Norton, M. Reyes-Ruiz, M. Richer, A. Szentgyorgyi, W.-L. Yen, Z.-W. Zhang, "Status of the Transneptunian Automated Occultation Survey (TAOS II)" , Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series: 9145, 13, 2014-07
  7. Griest K; Cieplak AM; Lehner MJ, "Experimental Limits on Primordial Black Hole Dark Matter from the First 2 yr of Kepler Data" , ASTROPHYSICAL JOURNAL: 786(2), 158, 2014-05 [SCI] (Fulltext)
  8. Ishioka R; Wang S-Y; Zhang Z-W; Lehner MJ; Alcock C; Axelrod T; Bianco FB; Byun Y-I; Chen WP; Cook KH; Kim D-W; King S-K; Lee T; Marshall SL; Protopapas P; Rice JA; Schwamb ME; Wang J-H; Wen C-Y; Ngeow C-C, "The Taiwanese-American Occultation Survey Project Stellar Variability. III. Detection of 58 New Variable Stars" , ASTRONOMICAL JOURNAL: 147(4), 70, 2014-04 [SCI] (Fulltext)
  9. Griest K; Cieplak AM; Lehner MJ, "New Limits on Primordial Black Hole Dark Matter from an Analysis of Kepler Source Microlensing Data" , PHYSICAL REVIEW LETTERS: 111(18), 181302, 2013-11 [SCI] (Fulltext)
  10. Zhang Z-W; Lehner MJ; Wang J-H; Wen C-Y; Wang S-Y; King S-K; ...; Cook KH; ...; Lee T; ...; Schwamb ME, "The TAOS Project: Results from Seven Years of Survey Data" , ASTRONOMICAL JOURNAL: 146(1), 14, 2013-07 [SCI]
  11. (M. J. Lehner), S.-Y. Wang, C. A. Alcock, K. H. Cook, G. Furesz, J. C. Geary, D. Hiriart, P. T. Ho, W. Lee, F. Melsheimer, T. Norton, M. Reyes-Ruiz, M. Richer, A. Szentgyorgyi, W.-L. Yen, Z.-W. Zhang, "The Transneptunian Automated Occultation Survey (TAOS II)" , Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series: 8444, 2012-09
  12. K. Y. Huang*,Y. Urata,Y. H. Tung, H. M. Lin, L. P. Xin, M. Yoshida, W. Zheng, S. Y. Wang, W. H. Ip, C. Akerlof, F. B. Bianco, M. J. Lehner, N. Kawai, D. Kuroda, S. L. Marshall, M. E. Schwamb, Y. Qiu, J. H. Wang, C. Y. Wen, J. Wei, K. Yanagisawa, and Z. W. Zhang, "The GRB 071112C: A Case Study of Different Mechanisms in X-ray and Optical Temporal Evolution" , ASTROPHYSICAL JOURNAL: 748(1), 44-50, 2012-03 [SCI]
  13. Griest K; Lehner MJ; Cieplak AM; Jain B, "Microlensing of Kepler Stars as a Method of Detecting Primordial Black Hole Dark Matter" , PHYSICAL REVIEW LETTERS: 107(23), 231101, 2011-12 [SCI] (Fulltext)
  14. Lehner MJ, ..., Zhang ZW, ...,Wang JH, ...,King SK, Lee T, ...,Wang SY, Wen CY, "The TAOS Project: Statistical Analysis of Multi-Telescope Time Series Data" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 122(894), 959-975, 2010-08 [SCI]
  15. Mondal S; ...; Zhang ZW;...; King S-K; Lee T; Lehner MJ; ...; Wang J-H; Wang S-Y; Wen C-Y, "The Taiwanese-American Occultation Survey Project Stellar Variability. II. Detection of 15 Variable Stars" , Astronomical Journal: 139(5), 2026-2033, 2010-05 [SCI] (Fulltext)
  16. Bianco FB; Zhang ZW; Lehner MJ; ...; Wang JH; ...; King SK; ...; Lee T; ...; Wang SY; Wen CY, "The TAOS Project: Upper Bounds on the Population of Small KBOs and Tests of Models of Formation and Evolution of the Outer Solar System" , ASTRONOMICAL JOURNAL: 139(4), 1499-1514, 2010-04 [SCI] (Fulltext)
  17. Kim D-W; ...; King S-K; Lee T; Lehner MJ; ...; Wang J-H; Wang S-Y; Wen C-Y; Zhang Z-W, "The Taiwan-American Occultation Survey Project Stellar Variability. I. Detection of Low-Amplitude δ Scuti Stars" , ASTRONOMICAL JOURNAL: 139(2), 757-764, 2010-02 [SCI] (Fulltext)
  18. Zhang ZW; Kim DW; Wang JH; Lehner MJ; Chen WP; Byun YI; Alcock C; Axelrod T; Bianco FB; Coehlo NK; Cook KH; Dave R; de Pater I; Giammarco J; King SK; Lee T; Lin HC; Marshall SL; Porrata R; Protopapas P; Rice JA; Schwamb ME; Wang SY; Wen CY, "The TAOS Project: High-Speed Crowded Field Aperture Photometry" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 121(886), 1429-1439, 2009-12 [SCI] (Fulltext)
  19. Wang J-H; Lehner MJ; ...; King S-K; Lee T; ...; Wang S-Y; Wen C-Y; et al., "Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project" , ASTRONOMICAL JOURNAL: 138(6), 1893-1901, 2009-12 [SCI] (Fulltext)
  20. Bianco FB; Protopapas P; McLeod BA; Alcock CR; Holman MJ; Lehner MJ, "A Search for Occultations of Bright Stars by Small Kuiper Belt Objects Using Megacam on the MMT" , ASTRONOMICAL JOURNAL: 138(2), 568-578, 2009-08 [SCI] (Fulltext)
  21. Lin CL; ...; King SK; ...; Wang JH;...; Lehner MJ; ...; Lee T; ...; Wang SY; Wen CY; et al., "A Close Binary Star Resolved from Occultation by 87 Sylvia" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 121(878), 359-364, 2009-04 [SCI] (Fulltext)
  22. Lehner MJ; Wen C-Y; Wang J-H; ...; King S-K; et al., "The Taiwanese-American Occultation Survey: The Multi-Telescope Robotic Observatory" , PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC: 121(876), 138-152, 2009-02 [SCI] (Fulltext)
  23. Z.-W. Zhang, F. B. Bianco, M. J. Lehner, N. K. Coehlo, J.-H. Wang, S. Mondal, C. Alcock, T. Axelrod, Y.-I. Byun, W. P. Chen, K. H. Cook, R. Dave, I. de Pater, R. Porrata, D.-W. Kim, S.-K. King, T. Lee, H.-C. Lin, J. J. Lissauer, S. L. Marshall, P. Protopapas, J. A. Rice, M. E. Schwamb, S.-Y. Wang, C.-Y. Wen, "First Results from the Taiwanese-American Occultation Survey (TAOS)" , ASTROPHYSICAL JOURNAL LETTERS: 685, 157-60, 2008-10 [SCI]
  24. J. H. Wang, M. E. Schwamb, K. Y. Huang, C. Y. Wen, Z. W. Zhang, S. Y. Wang, W. P. Chen, F. B. Bianco, R. Dave, M. J. Lehner, S. L. Marshall, R. Porrata, C. Alcock, Y. I. Byun, K. H. Cook, S. K. King, T. Lee, Y. Urata, "Early Optical Brightening in GRB 071010B" , ASTROPHYSICAL JOURNAL LETTERS: 679, 5-8, 2008-05 [SCI]
TEL: 886-2-3365-2200 FAX: 886-2-2367-7849
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