Jason Hyrum Steffen
Brinson Postdoctoral Fellow
Fermilab Center for Particle Astrophysics
Mail: PO Box 500, MS 127, Batavia, IL 60510
Citizenship: United States of America

Education
2006 -- Doctor of Philosophy in Physics
University of Washington, Seattle, Washington
Dissertation: Detecting New Planets in Transiting Systems

2003 -- Master of Science in Physics
University of Washington, Seattle, Washington

2000 -- Bachelor of Science in Physics and in Mathematics, Summa Cum Laude
Weber State University, Ogden, Utah

Research Interests
Extrasolar Planets, Dark Matter/Energy, Gravitation, Cosmology, Data Analysis Techniques

Employment
2012--Present -- CIERA Fellow, Northwestern University
2006--2012 -- Brinson Postdoctoral Fellow, Fermilab Center for Particle Astrophysics
2001--2006 -- Research Assistant, University of Washington, Seattle
1999 -- National Science Foundation REU Intern, Inst. for Nuclear Theory, Seattle, WA
1998--2000 -- Research Assistant, Weber State University

Academic Positions
2012 -- Lecturer, Northwestern University, Department of Physics and Astronomy
Courses: Physics for Scientists and Engineers, Astrophysics
2007--2012 -- Faculty Member at Waubonsee Community College, Department of Physics
Course: Introduction to Astronomy
2008 -- Science Program Architect, DeVry University Online
2001--2006 -- Faculty Member at Edmonds Community College, Department of Physics
Courses: The Solar System, Stars and Galaxies, Physics in Everyday Life
2005 -- Faculty Member at Bellevue Community College, Department of Physics
Course: Physics for Scientists and Engineers
2000--2001 -- Faculty Member at Salt Lake Community College, Department of Mathematics
Course: Intermediate Algebra

Non-academic Employment
1997--Present -- Private Tutor: Astronomy, Chemistry, Mathematics, Physics, and Statistics
2003--2004 -- Pedagogical Consultant and Problem Writer, Kinetic Books, Seattle, Washington
2000--2001 -- Embedded Software Engineer, L-3 Communications, Salt Lake City, Utah
2000 -- Pricing Analyst, McLeod USA Telecommunications, Salt Lake City, Utah
1998--2000 -- Planetarium Lecturer, Layton Ott Planetarium, Ogden, Utah
1997--1999 -- Supplemental Instruction Leader: Astronomy, Mathematics, Physics, and Statistics, Weber State University, Ogden, Utah

Grants/Research
2009 -- Spokesperson, Fermilab project T-991, "GammeV Chameleon Afterglow Search (GammeV--CHASE)".
2008--2011 -- Principal Investigator, Kepler Participating Scientist with NASA's Kepler mission, "Detecting Additional Planets in Transiting Systems Using Transit Timing Variations".
2007 -- Co-Investigator, Spitzer Space Telescope Cycle 4, "Detecting Mars-mass planets with transit timing".
2005--2006 -- Graduate Student Research Program (GSRP) Grant from the NASA Office of Space Science, "Finding New Planets in Transiting Systems".

Awards
Northwestern University, Department of Physics and Astronomy
CIERA Fellow (2012)
Fermilab Center for Particle Astrophysics
Brinson Postdoctoral Fellowship (2006)
University of Washington, Department of Physics
Mellam Fellowship (2001), Physics Department Fellowship (2001)
Weber State University, Department of Physics
Outstanding Physics Graduate (2000), Paul H. Huish Scholarship (1999), Questar Corporation Scholarship (1998), Jim Bateman Scholarship (1998), Mary Margaret Clarke Scholarship (1997)
Weber State University, Department of Mathematics
Outstanding Mathematics Graduate (2000), Jerry Fields Award (1999)
Other
Outstanding Undergraduate Presentation at the Fall 1999 Meeting of the Four Corners Section of the American Physical Society (1999), Weber State University Presidential Commendation Scholarship (1993)
Professional Affiliations and Honor Societies
American Astronomical Society, Golden Key National Honor Society, Phi Kappa Phi National Honor Society, Sigma Xi National Research Honor Society

Leadership/Service
2006--Present -- Fermilab Center for Particle Astrophysics: Chalk Talk organizer, Munch organizer, Seminar organizer, webmaster, and various committees member.
2006--Present -- Referee for the Astrophysical Journal, Astronomy and Astrophysics, and Astroparticle Physics
2010--2011 -- Science Organizing Committee member, First Kepler Science Conference (December 5-9, 2011).
2009 -- Review Panel Member for NASA Origins of Solar Systems 2009.
2008 -- External Reviewer for NASA Origins of Solar Systems 2008.
1999--2000 -- President of Society of Physics Students, Weber State University Chapter
1998--2000 -- Secretary of Golden Key National Honor Society, Weber State University Chapter

Publications

Peer Reviewed

  1. Steffen, J.H., ``Kepler's missing planets'', MNRAS, Submitted, (2013) arXiv:1301.2394
  2. Steffen, J.H., et al., ``Transit Timing Observations from Kepler: VII. Confirmation of 27 planets in 13 multiplanet systems via Transit Timing Variations and orbital stability'', MNRAS, in press, (2012) arXiv:1208.3499
  3. Steffen, J.H., et al., ``Transit Timing Observations from Kepler: VI. Potentially interesting candidate systems from Fourier-based statistical tests'', ApJ, 756, 186, (2012) arXiv:1201.1873
  4. Ford, E.B., et al., ``Transit Timing Observations from Kepler: V. Transit Timing Variation Candidates in the First Seventeen Months from Polynomial Models'', ApJ, 756, 185, (2012) arXiv:1201.1892
  5. Carter, J.A., Agol, E., et al., ``Kepler-36: A Pair of Planets with Neighboring Orbits and Dissimilar Densities'', Science, 337, 556, (2012) arXiv:1206.4718
  6. Upadhye, A., Steffen, J.H., and Chou, A.S., ``Designing dark energy afterglow experiments'', PRD, 86, 035006, (2012) arXiv:1204.5476
  7. Howard, A.W., et al., ``Planet Occurrence within 0.25 AU of Solar-type Stars from Kepler'', ApJS, 201, 15, (2012) arXiv:1103.2541
  8. Steffen, J.H., Upadhye, A., Baumbaugh, A., Chou, A.S., and Tomlin, R., ``Anomalous afterglow seen in a chameleon afterglow search'', PRD, 86, 012003, (2012) arXiv:1204.5476
  9. Steffen, J.H., et al., "Kepler constraints on planets near hot Jupiters", PNAS, 109, 7982, (2012) arXiv:1205.2309
  10. Fabrycky, D.C., et al., "Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates", ApJ, Submitted, (2012) arXiv:1202.6328
  11. Batalha, N.M., et al., "Planetary Candidates Observed by Kepler, III: Analysis of the First 16 Months of Data", ApJ, Submitted, (2012) arXiv:1202.5852
  12. Borucki, W.J., et al., "Kepler-22b: A 2.4 Earth-radius Planet in the Habitable Zone of a Sun-like Star", ApJ, 745, 120, (2012), arXiv:1112.1640
  13. Welsh, W.W. et al., "Transiting circumbinary planets Kepler-34 b and Kepler-35 b", Nature, 481, 475 (2012)
  14. Fabrycky, D.C., Ford, E.B., Steffen, J.H., et al., "Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models", ApJ, In Press, (2012) arXiv:1201.5415
  15. Steffen, J.H., Fabrycky, D.C., Ford, E.B., et al., "Transit Timing Observations from Kepler: III. Confirmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations", MNRAS, In Press, (2012) arXiv:1201.5412
  16. Ford, E.B., Fabrycky, D.C., Steffen, J.H., et al., "Transit Timing Observations from Kepler: II. Confirmation of Two Multiplanet Systems via a Non-parametric Correlation Analysis", ApJ, In Press, (2012) arXiv:1201.5409
  17. Ballard, S., et al., "The Kepler-19 System: A Transiting 2.2 R_Earth Planet and a Second Planet Detected via Transit Timing Variations", ApJ, 743, 200 (2011) arXiv:1109.1561
  18. Lissauer, J.J., et al, "Architecture and Dynamics of Kepler's Candidate Multiple Transiting Planet Systems", ApJS, 197, 8 (2011) arXiv:1102.0543
  19. Cochran, W.D., et al., "Kepler 18-b, c, and d: A System Of Three Planets Confirmed by Transit Timing Variations, Lightcurve Validation, Spitzer Photometry and Radial Velocity Measurements", ApJS, 197, 7 (2011) arXiv:1110.0820
  20. Ford, E.B., et al, "Transit Timing Observations from Kepler: I. Statistical Analysis of the First Four Months", ApJS, 197, 2 (2011) arXiv:1102.0544
  21. Steffen, J.H., et al "The architecture of the hierarchical triple star KOI 928 from eclipse timing variations seen in Kepler photometry", MNRAS Letters, 417, L31, arXiv:1106.4530
  22. Doyle, L., et al., "Kepler 16: A Transiting Circumbinary Planet", Science, 16, 333, 6049 (2011) arXiv:1109.3432
  23. Steffen, J.H. and Hotchkiss, J., "Experimental test of airplane boarding methods", Jour. Air. Trans. Mgmt., 18, 64 (2011) arXiv:1108.5211
  24. Borucki, W.J., et al, "Characteristics of Kepler Planetary Candidates Based on the First Data Set", ApJ, 736, 19 (2012) arXiv:1102.0541
  25. Latham, D.W., et al "A First Comparison of Kepler Planet Candidates in Single and Multiple Systems", ApJ Letters, 732, 24 (2011), arXiv:1103.3896
  26. Hooper, D. & Steffen, J.H. "Dark Matter And The Habitability of Planets", JCAP, 07, 046, (2012) arXiv:1103.5086
  27. Batalha, N.M., et al "Kepler's first rocky planet: Kepler-10b", ApJ, 729, 27 (2011), arXiv:1102.0605
  28. Carter, J.A., et al "KOI-126: A triply-eclipsing hierarchical triple with two low-mass stars", Science, 331, 562 (2011), arXiv:1102.0562
  29. Lissauer, J.J., et al, "A closely packed system of low-mass, low-density planets transiting Kepler-11", Nature (Cover Story), 470, 53 (2011), arXiv:1102.0291
  30. Borucki, W.J., et al, "Characteristics of Kepler Planetary Candidates Based on the First Data Set", ApJ, 728, 117 (2010), arXiv:1006.2799
  31. Torres, G., et al, "Modeling Kepler transit light curves as false positives: Rejection of blend scenarios for Kepler-9, and validation of Kepler-9d, a super-Earth-size planet in a multiple system", ApJ, 727, 24 (2010), arXiv:1008.4393
  32. Steffen, J.H., Baumbaugh, A., Chou, A.S., Mazur, P.O., Tomlin, R., Upadhye, A., Weltman, A., Wester, W., "Laboratory constraints on chameleon dark energy and power-law fields", PRL, 105, 261803 (2010), arXiv:1010.0988
  33. Steffen, J.H., et al, "Five Kepler target stars that show multiple transiting exoplanet candidates", ApJ, 725, 7226 (2010), arXiv:1006.2763
  34. Holman, M., et. al, "Kepler-9: A system of Multiple Planets Transiting a Sun-like Star, Confirmed by Timing Variations", Science (Cover Story), 330, 6000, (2010)
  35. Agol, E., Cowan, N. B., Knutson, H. A., Deming, D., Steffen, J. H., Henry, G. W., Charbonneau, D., "The climate of HD 189733b from fourteen transits and eclipses measured by Spitzer", ApJ, 721, 1861, arXiv:1007.4378 (2010)
  36. Borucki, W.J., et. al, "Kepler Planet Detection Mission: Introduction and First Results", Science, Vol. 327. no. 5968, pp. 977 - 980 (2010)
  37. Gilliland, R., et. al, "Kepler Asteroseismology Program: Introduction and First Results", Publications of the Astronomical Society of the Pacific, 122, 131 (2010)
  38. Upadhye, A., Steffen, J.H., & Weltman, A., "Constraining chameleon field theories using the GammeV afterglow experiment", Physical Review D, 81, 015013 (2010), arXiv:0911.3906.
  39. Steffen, J.H., Moore, M.W., & Boynton, P.E., "Optimal Estimation of Several Linear Parameters in the Presence of Lorentzian Thermal Noise", Classical and Quantum Gravity, 26, 185009, (2009). arXiv:0805.0027
  40. Steffen, J.H. & Upadhye, A., "The GammeV Suite of Experimental Searches for Axion-like Particles", invited review, Modern Physics Letters A, Vol. 24, No. 26, pp. 2053-2068 (2009). arXiv:0908.1529
  41. Chou, A.S., Wester, W., Baumbaugh, A., Gustafson, H.R., Irizarry-Valle, Y., Mazur, P.O., Steffen, J.H., Tomlin, R., Upadhye, A., Weltman, A., Yang, X., & Yoo, J., "Search for chameleon particles using a photon regeneration technique", Physical Review Letters, 102, 030402, (2009). arXiv:0806.2438
  42. Steffen, J.H., "A statistical mechanics model for free-for-all airplane passenger boarding", American Journal of Physics, Vol. 76, No. 12, pp. 1114-1119, (2008). arXiv:0803.3199
  43. Steffen, J.H. & Valenzuela, O., "Constraints on the angular distribution of satellite galaxies about spiral hosts", Monthly Notices of the Royal Astronomical Society, Volume 387, p. 1199 (2008). arXiv:0712.2363
  44. Steffen, J.H., "Optimal boarding method for airline passengers", Journal of Air Transport Management, Volume 14, Issue 3, pp. 146-150, (2008). arXiv:0802.0733
  45. Chou, A.S., Wester, W., Baumbaugh, A., Gustafson, H.R., Irizarry-Valle, Y., Mazur, P.O., Steffen, J.H., Tomlin, R., Yang, X., Yoo, J., "Search for axion-like particles using a variable baseline photon regeneration technique", Physical Review Letters, 100, 080402, (2008). arXiv:0710.3783
  46. Agol, E. & Steffen, J.H., "A limit on the presence of Earth-mass planets around a Sun-like star", Monthly Notices of the Royal Astronomical Society, Volume 374, p. 941 (2007). arXiv:astro-ph/0610159
  47. Steffen, J.H. & Agol, E., "An analysis of the transit times of TrES-1b", Monthly Notices of the Royal Astronomical Society Letters, Volume 364, Issue 1, p. 96, (2005). arXiv:astro-ph/0509656
  48. Moore, M.W., Steffen, J.H., & Boynton, P.E., "Optimal determination of the equilibrium displacement of a damped harmonic oscillator in the presence of thermal noise", Review of Scientific Instruments, Volume 76, p. 085106 (2005). arXiv:physics/0412102
  49. Agol, E., Steffen, J., Sari, R., & Clarkson, W., "On detecting terrestrial planets with the timing of giant planet transits", Monthly Notices of the Royal Astronomical Society, Volume 359, Issue 2, pp. 567-579 (2005). arXiv:astro-ph/0412032
  50. Steffen, J.H., "Exploring 5th force interactions with 18th century technology", International Journal of Modern Physics D, Volume 13, Issue 10, pp. 2249-2254 (2004). arXiv:gr-qc/0503081


Conference Proceedings and Other

  1. Hewett, J.L., et al., ``Fundamental Physics at the Intensity Frontier'', Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier, (2011), arXiv:1205.2671.
  2. Steffen, J.H., for the GammeV--CHASE collaboration, "The CHASE laboratory search for chameleon dark energy", Proceedings of identification of dark matter (IDM) 2010, Proceedings of Science, (2010) arXiv:1011.3802v2
  3. Steffen, J.H., for the GammeV--CHASE collaboration, "The CHASE laboratory search for chameleon dark energy", Proceedings of the international conference for high energy physics (ICHEP) 2010, Proceedings of Science, (2010) arXiv:1011.3802v1
  4. Steffen, J.H., for the GammeV collaboration, "Constraints on Chameleons and Axion-like Particles from the GammeV Experiment", Proceedings of identification of dark matter 2008, Proceedings of Science, (2008). arXiv:0810.5070
  5. Agol, E., Cowan, N.B., Bushong, J., Knutson, H., Charbonneau, D., Deming, D., & Steffen, J.H., "Transits and secondary eclipses of HD 189733 with Spitzer", Proceedings of IAU Symposium No. 253 "Transiting Planets", (2008). arXiv:0807.2434
  6. Steffen, J.H., Gaudi, B.S., Ford, E.B., Agol, E., & Holman, M.J., "Detecting and Characterizing Planetary Systems with Transit Timing", White paper submitted to the Exoplanet Task Force, (2007). arXiv:0704.0632
  7. Steffen, J.H. & Agol, E., "Developments in Planet Detection using Transit Timing Variations", ASP Conference Series, "Transiting Extrasolar Planets Workshop" MPIA Heidelberg Germany, Eds: Cristina Afonso, David Weldrake & Thomas Henning, ASPC, Volume 366, p. 158, (2007). arXiv:astro-ph/0612442
  8. Boynton, P.E., Bonicalzi, R.M., Kalet, A.M., Kleczewski, A.M., Lingwood, J.K., McKenney, K.J., Moore, M.W., Steffen, J.H., Berg, E.C., Cross, W.D., Newman, R.D., & Gephart, R.E., "Gravitation Physics at BGPL", Proceedings of the Francesco Melchiorri Memorial Conference, New Astronomy Reviews, Volume 51, p. 334, (2007). arXiv:gr-qc/0609095
  9. Steffen, J.H., Ph.D. Dissertation, "Detecting new planets in transiting systems", (2006). arXiv:astro-ph/0609492
  10. Berg, E.C., Cross, W.D., Newman, R.D., Boynton, P.E., Moore, M.W., & Steffen, J.H., "Planned tests of the equivalence principle with a cryogenic torsion pendulum", Contribution to Testing The Equivalence Principle on Ground and in Space, Ed. Lammerzahl, C., Everitt, C.W.F., & Ruffini, R., (Springer-Verlag: London), (2005).
  11. Steffen, J.H., "Symmetry in a perturbed optical system", (2005). arXiv:physics/0503129
  12. Berg, E.C., Bantel, M.K., Cross, W.D., Inoue, T, Newman, R.D., Steffen, J.H., Moore, M.W., & Boynton, P.E., "Laboratory tests of gravitational physics using a cryogenic torsion pendulum", Proceedings of 10th Marcel Grossman Meeting, Ed. Ruffini, R., et al. (World Scientific: Singapore), (2005). arXiv:gr-qc/0403021


Talks, Lectures, and Presentations
  1. Talk: Laser probes of the dark sector, Physics Department Colloquium, University of Central Florida, Orlando, FL (February 2012).
  2. Talk: The Fermilab searches for light scalars, Physics Seminar, CERN, Geneva, Switzerland, (January 2012).
  3. Talk: The Fermilab searches for light scalars, Physics Seminar, DESY, Hamburg, Germany, (January 2012).
  4. Public Lecture: Exoplanets: Searching for the Companions of Distant Suns,Adler Planetarium, Chicago, IL (October 2011).
  5. Talk: Insight into planetary systems from the NASA Kepler mission, Physics Department Colloquium, Washington University, St. Louis, MO (September 2011).
  6. Talk: Laser probes of the dark sector, Physics Department Theory Seminar, Washington University, St. Louis, MO (September 2011).
  7. Public Lecture: Insight into planetary systems from the Kepler mission, Chicago Astronomical Society, Adler Planetarium, Chicago, IL (May 2011).
  8. Talk: Laser probes of the dark sector, High Energy Physics Seminar, Northwestern University, Evanston, IL (April 2011).
  9. Talk: Kepler systems with multiple transiting objects, Astrophysics Colloquium, JPL, Pasadena, CA (April 2011).
  10. Talk: Insight into planetary systems frmo the Kepler mission, Theoretical Astrophysics Seminar, Northwestern University, Evanston, IL (February 2011).
  11. Public Lecture: Finding Other Earths, Harry Nelson Lecture in Astronomy, Augustana College, Rock Island, IL (October 2010).
  12. Talk: Laboratory constraints on chameleon dark energy from CHASE, UCLA Physics Department Seminar, Los Angeles, CA (October 2010).
  13. Talk: Transit Timing Variation studies of Kepler exoplanetary systems, 42nd meeting of the Division for Planetary Sciences of the AAS, Pasadena, CA (October 2010).
  14. Talk: Laboratory constraints on chameleon dark energy from CHASE, LBL INPA Seminar, Berkeley, CA (September 2010).
  15. Talk: New frontiers in exoplanets in the Kepler era, Stanford/SLAC Astrophysics Colloquium, Palo Alto, CA (September 2010).
  16. Talk: The CHASE laboratory search for chameleon dark energy, Identification of Dark Matter (IDM 2010), Montpellier, France (July 2010).
  17. Talk: The CHASE laboratory search for chameleon dark energy, International Conference on High Energy Physics (ICHEP 2010), Paris, France (July 2010).
  18. Talk: The CHASE probe for chameleon dark energy, Invited Talk, The Dark Side of the Universe, Leon, Mexico, (June 2010).
  19. Talk: Planetary System Characterization via Transit Timing Variations, Invited Talk, Putting our Solar System in Context, Obergurgl, Austria (April 2010).
  20. Public Lecture: First Results of the Kepler Mission, Clark Planetarium, Salt Lake City, UT (February 2010).
  21. Talk: The GammeV and CHASE laboratory searches for chameleon dark energy, University of Utah Physics Colloquium, Salt Lake City, UT. (February 2010).
  22. Talk: First Results of the Kepler mission, Weber State University Physics Seminar, Ogden, UT (February 2010).
  23. Talk: GammeV--CHASE: A Laboratory Search for Dark Energy, 215th Meeting of the American Astronomical Society, Washington, D.C. (January 2010).
  24. Talk: The State of Transit Timing Variations, Invited Talk, Towards Other Earths, Porto, Portugal (October 2009).
  25. Public Lecture: Finding Other Earths, Asset Earth series at Waubonsee Community College, Sugar Grove, IL (October 2009).
  26. Talk: Detecting additional planets from the transits of known extrasolar planets, Embry Riddle Aeronautical University Physics Seminar, Daytona, FL (March 2009).
  27. Talk: Detecting additional planets from the transits of known extrasolar planets, Fermilab Center for Particle Astrophysics Seminar, Batavia, IL (February 2009).
  28. Talk: Constraints on Chameleons and Axion-like Particles from the GammeV Experiment, Lawrence Livermore National Laboratory Physics Seminar, Livermore, CA (November 2008).
  29. Talk: Constraints on Chameleons and Axion-like Particles from the GammeV Experiment, University of California at Santa Cruz Physics Seminar, Santa Cruz, CA (November 2008).
  30. Talk: Constraints on Chameleons and Axion-like Particles from the GammeV Experiment, University of Washington Physics Seminar, Seattle, WA (October 2008).
  31. Talk: Constraints on Chameleons and Axion-like Particles from the GammeV Experiment, Identification of Dark Matter 2008, Stockholm, Sweden (August 2008).
  32. Talk: Extrasolar Planet Detection via Transit Timing Variations, Carnegie Department of Terrestrial Magnetism Extrasolar Planets Seminar, Washington DC (March 2008).
  33. Talk: Extrasolar Planet Detection via Transit Timing Variations, University of Maryland Astronomy Seminar, College Park, MD (March 2008).
  34. Talk: Results from the GammeV Axion-like Particle Search, Johns Hopkins University Physics Department Seminar, Baltimore, MD (March 2008).
  35. Talk: Results from the GammeV Axion-like Particle Search, University of Maryland Physics Department Seminar, College Park, MD (March 2008).
  36. Talk: Extrasolar Planet Detection via Transit Timing Variations, Johns Hopkins University Center for Astrophysical Sciences Seminar, Baltimore, MD (March 2008).
  37. Talk: Results from the GammeV Axion-like Particle Search, Harvard University Laboratory for Particle Physics and Cosmology Seminar, Boston, MA (February 2008).
  38. Talk: Constraining the Angular Distribution of Satellite Galaxies about Disk-like Host Galaxies, SDSS Collaboration Meeting, Batavia, IL (November 2007).
  39. Talk: The GammeV Particle Search Experiment, The 3rd Joint ILIAS-CERN-DESY Axion-WIMPs training-workshop, University of Patras, Patras, Greece (June 2007).
  40. Talk: Detecting Terrestrial Planets in Transiting Planetary Systems, Northwestern University Astrophysics Seminar, Evanston, IL (May 2007).
  41. Talk: Fundamental Gravitation Physics with a Torsion Pendulum, Princeton University Physics Seminar, Princeton, NJ (March 2007).
  42. Talk: Detecting Terrestrial Planets in Transiting Planetary Systems, Princeton University Wunch Talk, Princeton, NJ (March 2007).
  43. Talk: Developments in Planet Detection using Transit Timing Variations, Transiting Planets Workshop, Heidelberg, Germany (September 2006).
  44. Talk: Development and Application of the Transit Timing Planet Detection Technique, 207th meeting of the American Astronomical Society, Washington D.C., (January 2006).
  45. Talk: Finding Terrestrial Planets in Transiting Systems, Weber State University Physics Department Colloquium, Ogden, Utah (November 2004).
  46. Talk: A Search For Inverse-Square Law Violation, 19th Pacific Coast Gravity Meeting, Salt Lake City, Utah (March 2003).
  47. Talk: The Oscillating Neutrino: Some Possible Answers, American Physical Society, Four Corners Section Fall Meeting, Tucson, Arizona (October 1999).


Return to home page