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Neil Murphy

Photo of Neil Murphy

Address:

4800 Oak Grove Drive
M/S 169-506

Pasadena, CA 91109

Phone:

818.354.8718

Fax:

818.354.8895

Curriculum Vitae:

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Member of:

Interstellar and Heliospheric Physics

Education

  • B.Sc., Physics, Imperial College, London (1981)
  • Ph.D., Space Plasma Physics, Imperial College, London (1987)

Professional Experience

  • Jet Propulsion Laboratory (1988 – present)
    • Scientist, Astrophysics and Space Science Section (2017 – present)
    • Manager, Strategic University Research Partnerships Program (2011-2017)
    • Supervisor, Space and Astrophysical Plasmas Group (2002–2011)
    • Manager, Heliophysics Advanced Concepts Office (2001-2011)
    • Research Scientist, Space Physics Element (1997–2001)
    • Science Lead, JPL’s Advanced Project Design Team (Team-X) (1999-2001)
    • Member of the Technical Staff, Space Physics Element (1991–1997)
    • Galileo project, Energetic Particle Detector/Heavy Ion Counter support team lead (1992-1997)
    • National Research Council Postdoc, Jet Propulsion Laboratory (1988-1991)
  • High School Science Teacher (In the United Kingdom) (1981-1983)

Research Interests

Dr. Murphy’s recent research has concentrated on the development instrumentation, including laser-pumped Helium magnetometers; magneto-optical filter (MOF) based Doppler and magnetic imagers, used for, making line of sight velocity images of Jupiter, Saturn and velocity and magnetic field images of the sun, and a solar Doppler/magnetic observatory that was deployed at the South Pole.

Dr. Murphy was the Principal Investigator on the Dynamo Sounding Rocket vector helium magnetometer (launches in June 2011 and June 2013); lead the technical development of the INSPIRE CubeSat vector helium magnetometer; was a Co-Investigator on the Magneto-Optical Filter at Two Heights - 2 (MOTH-2) experiment, deployed to the South Pole in 2007, 2016 and 2017; a Co-Investigator on the Europa Clipper magnetometer experiment, (ECM); and is the Principal Investigator for the vector helium magnetometer experiment, CuSP CubeSat mission, to be launched in 2021.

Selected Publications

  1. Jefferies, S. J., Fleck, B., Murphy, N., Berilli, F., “Observed local dispersion relations for magneto-acoustic-gravity waves in the Sun's atmosphere: Mapping the acoustic cut-off frequency”, ApJ Letters 2019
  2. Mihir I. Desai, Frederic Allegrini, Robert W. Ebert, Keiichi Ogasawara, Michael E. Epperly, Don E. George, Eric R. Christian, Shrikanth G. Kanekal, Brent Randol, Neil Murphy, “The CubeSat Mission to Study Solar Particles”, IEEE Aerospace and Electronic Systems Magazine, volume 34 issue 4, 2019.
  3. R. W. Ebert, F. Allegrini, F. Bagenal, C. Beebe, M. A. Dayeh, M. I. Desai, D. E George, J. Hanley, P. Mokashi, N. Murphy, P. W. Valek, D. Wenkert, A. Wolf, C.-W. L. Yen, JUpiter magnetospheric boundary ExploreR (JUMPER),, IEEE Aerospace Conference Proceedings, 25 June 2018
  4. Cannon, Br E.; Smith, C W.; Isenberg, P A.; Vasquez, B J.; Joyce, C J.; Murphy, N; Nuno, R G. Listing of 502 Times When the Ulysses Magnetic Fields Instrument Observed Waves Due to Newborn Interstellar Pickup Protons. Astrophysical Journal; Journal Vol: 840; Issue: 1, 2017
  5. Hart, M., S.M. Jefferies, and N. Murphy. (2016) Daylight operation of a sodium laser guide star for adaptive optics wavefront sensing., J. Astron. Telesc. Instrum. Syst, 2(4), 040501.
  6. Gaulme, P, J. F. Rowe, T. R. Bedding, O. Benomar, E. Corsaro, G. R. Davies, S. J. Hale, R. Howe, R. A. Garcia, D. Huber, A. Jiménez, S. Mathur, B. Mosser, T. Appourchaux, P. Boumier, J. Jackiewicz, J. Leibacher, F.-X. Schmider, H. B. Hammel, J. J. Lissauer, M. S. Marley, A. A. Simon, W. J. Chaplin, Y. Elsworth, J. A. Guzik, N. Murphy, and V. Silva Aguirre. A Distant Mirror: Solar Oscillations Observed on Neptune by the Kepler K2 Mission. The Astrophysical Journal Letters, Volume 833, Number 1, 2016
  7. Liebe, Carl C.; N Murphy, L Dorsky, N. Udomkesmalee. Three-axis sun sensor for attitude determination. IEEE Aerospace and Electronic Systems Magazine, Vol: 31 , Issue: 6 , June 2016
  8. Cannon, B.E., C. W. Smith, P. A. Isenberg, B. J. Vasquez, C. J. Joyce, N. Murphy and R. G. Nuno (2014). Ulysses Observations of Magnetic Waves Due to Newborn Interstellar Pickup Ions. I. New Observations and Linear Analysis. The Astrophysical Journal, 784, 150.
  9. Cannon, B.E., C. W. Smith, P. A. Isenberg, B. J. Vasquez, C. J. Joyce, N. Murphy and R. G. Nuno (2014). Ulysses Observations of Magnetic Waves Due to Newborn Interstellar Pickup Ions. II. Application of Turbulence Concepts to Limiting Wave Energy and Observability, The Astrophysical Journal, 787, 133.
  10. Liewer P.C., Andrew T. Klesh, Martin W. Lo, Neil Murphy, Robert L. Staehle, Vassilis Angelopoulos, Brian D. Anderson, Manan Arya, Sergio Pellegrino, James W. Cutler, E. Glenn Lightsey, Angelos Vourlidas, “A Fractionated Space Weather Base at L5 using CubeSats and Solar Sails”. In: Macdonald M. (eds) Advances in Solar Sailing. Springer Praxis Books. Springer, Berlin, Heidelberg, 2014
  11. Alexander, D. and Murphy, N. (2014). Payload Design and Sizing, The International Handbook of Space Technology, Macdonald, M., Badescu, V. (Eds.), Springer Praxis Books, 117.
  12. Cannon, B. E., C. W. Smith, P. A. Isenberg, B. J. Vasquez, C. J. Joyce, N. Murphy, and R. G. Nuno (2013). Preliminary Analysis of Magnetic Waves due to Newborn Interstellar Pickup Ions, Solar Wind 13, AIP Conf. Proc. 1539, 334-337.
  13. Joyce, C. J., C. W. Smith, P. A. Isenberg, S. P. Gary, N. Murphy, P. C. Gray, and L. F. Burlaga (2012). Observation of Bernstein Waves Excited by Newborn Interstellar Pickup Ions in the Solar Wind. The Astrophysical Journal, 745, 112.
  14. Joyce, Colin J., Charles W. Smith, Philip A. Isenberg, Neil. Murphy, and Nathan A. Schwadron. Excitation of low-frequency waves in the solar wind by newborn interstellar pick-up ions H+ an He+ as seen by Voyager at 4.5 AU, Astrophysical Journal, 724:1256–1261, 2010
  15. Smith, Charles W.; Isenberg, Philip A.; Joyce, Colin J.; Cannon, B.E.; Murphy, N.; Nuno, R. G.; Schwadron, N.A. Ulysses and Voyager Observations of Waves Due to Interstellar Pickup H+ and He+. AIP Conference Proceedings; 12/30/2010, 1302 Issue 1, 186.
  16. Moretti, P.F., F. Berrilli, A. Bigazzi, S.M. Jefferies, N. Murphy, L. Roselli, M.P. Di Mauro, Future instrumentation for solar physics: a double channel MOF imager on board ASI Space Mission ADAHELI, Astrophys Space Sci. 328: 313–318, 2010
  17. Appourchaux, T.; Liewer, P.; Watt, M.; Alexander, D.; Andretta, V.; Auchere, F.; D'Arrigo, P.; Ayon, J.; Corbard, T.; Fineschi, S.; Finsterle, W.; Floyd, L.; Garbe, G.; Gizon, L.; Hassler, D.; Harra, L.; Kosovichev, A.; Leibacher, J.; Leipold, M.; Murphy, N.; Maksimovic, M.; Martinez-Pillet, V.; Matthews, B. S. A.; Mewaldt, R.; Moses, D.; Newmark, J.; Regnier, S.; Schmutz, W.; Socker, D.; Spadaro, D.; Stuttard, M.; Trosseille, C.; Ulrich, R.; Velli, M.; Vourlidas, A.; Wimmer-Schweingruber, C. R.; Zurbuchen, T., POLAR investigation of the Sun—POLARIS, Exp Astron (2009) 23: 1079
  18. Turck-Chièze, S., P. Lamy C. Carr P. H. Carton A. Chevalier I. Dandouras J. M. Defise S. Dewitte T. Dudok de Wit, J. P. Halain S. Hasan J. F. Hochedez, T. Horbury ·P. Levacher, M. Meissonier, N. Murphy P. Rochus, A. Ruzmaikin W. Schmutz, G. Thuillier , S. Vivès. The DynaMICCS perspective - A mission for a complete and continuous view of the Sun dedicated to magnetism, space weather and space climate. Exp Astron (2009) 23:1017–1055
  19. McComas, D. J., et al, Understanding coronal heating and solar wind acceleration: Case for in situ near-Sun measurements, Rev. Geophys., 45, RG1004, doi:10.1029/2006RG000195., 2007
  20. Murphy, N., E.J. Smith, W. Rodgers and S. Jefferies (2005). Chromospheric observations in the Helium 1083nm line – A new instrument, Proc. Solar Wind 11, ESA SP-592.
  21. Murphy, N., E.J. Smith and N. A. Schwadron (2002). Strongly Underwound magnetic fields in co-rotating interaction regions: Observations and Implications, Geophys. Res. Lett., 29, (22) 2066, doi:10.1029/2002GL015164.
  22. Cohen, C.M.S., T.L. Garrard, E.C. Stone, J.F. Cooper, N. Murphy and N. Gehrels, Io encounters past and present: A heavy ion comparison, J. Geophys. Res., 105, A4, 7775, 2000
  23. Murphy, N., E.J. Smith, J. Wolfe and Devrie S. Intriligator, A reexamination of “Interstellar ion waves” previously identified in Pioneer 10 magnetic field data, Geophys. Res. Lett., 25, 3721, 1998.
  24. Williams, D. J.; Mauk, B. H.; McEntire, R. W.; Roelof, E. C.; Armstrong, T. P.; Wilken, B.; Roederer, J. G.; Krimigis, S. M.; Fritz, T. A.; Lanzerotti, L. J.; Murphy, N., Energetic particle signatures at Ganymede: Implications for Ganymede's magnetic field, Geophys. Res. Lett., 24, 2163, 1997.
  25. Murphy, N., E.J. Smith, B. Goldstein, A. Balogh and R.J. Forsyth, Correlated Variations in the Azimuthal and Elevation Angles of the Interplanetary Magnetic Field, Solar Wind Eight, Proc. of the Eighth Int. Solar Wind Conf., AIP 382, 421-424, 1996.
  26. Garrard, T.L, E.C. Stone and N. Murphy, Effects of absorption by Io on composition of energetic heavy ions, Science, 274, 393, 1996.
  27. Forsyth, R. J. ; Balogh, A. ; Smith, E. J. ; Murphy, N. McComas, D. J., Reply to "Comment on 'The underlying magnetic field direction in Ulysses observations of the southern polar heliosphere'" by Charles W. Smith and John W. Bieber, Geophys. Res. Lett. Vol. 23 , No. 22 , p. 3281, 1996.
  28. Murphy, N., E.J. Smith, B.T. Tsurutani, A. Balogh and D.J. Southwood. Further studies of waves accompanying the solar wind pick-up of interstellar hydrogen. Space Science Reviews, 72, 447-452, 1995.
  29. Forsyth, R.J., A. Balogh, E.J. Smith, N. Murphy and D.J. McComas, The Underlying Magnetic Field direction in Ulysses Observations of the Southern Polar Heliosphere, Solar Wind Eight, Proc. of the Eighth Int. Solar Wind Conf., AIP 382, 420, 1996.
  30. Burton, M.E., E.J. Smith, A. Balogh and N. Murphy, Heliomagnetic Latitude Dependence of the Heliospheric Magnetic Field, , Solar Wind Eight, Proc. of the Eighth Int. Solar Wind Conf., AIP 382, 506, 1996. Owen, C.J., J.A. Slavin, I.G. Richardson, N. Murphy and R.J. Hynds, Average motion, structure and orientation of the distant magnetotail determined from remote sensing of the edge of the plasma sheet boundary layer with E> 35 keV ions., J. Geophys. Res., 100, A1, 185, 1995.
  31. Anderson, K.A., J. Somers, R.P. Lin, M. Pick, P. Chaizy, N. Murphy, E.J. Smith and J. Phillips, Mirroring of fast solar flare electrons on a downstream corotation interaction region., J. Geophys. Res., 100, A1, 3, 1995.
  32. Winterhalter, D.; Smith, E. J.; Burton, M. E.; Murphy, N.; McComas, D. J., The heliospheric plasma sheet, J. Geophys. Res., 99, A4, 6667, 1994
  33. Pulkkinen, T.I., D.N. Baker, C.J. Owen, J.T. Gosling and N. Murphy, Thin current sheets in the deep geomagnetic tail, Geophys. Res. Lett., 20, 22, 2427, 1993.
  34. Balogh, A.; Dougherty, M. K.; Forsyth, R. J.; Southwood, D. J.; Smith, E. J.; Tsurutani, B. T.; Murphy, N.; Burton, M. E., Magnetic field observations during the ULYSSES flyby of Jupiter, Science, 257, no. 5076, 1515-1518. 1992
  35. Smith, P.R., Hopcraft, K.I, Murphy, N., An interpretation of magnetosonic waves in the boundary regions of the plasma sheet as seen by the ISEE 3 spacecraft, Magnetotail physics, Johns Hopkins University Press, 151-154. 1987
  36. Murphy, N., J.A. Slavin, D.N. Baker and W.J. Hughes, Enhancements of energetic ions associated with travelling compression regions in the deep geomagnetic tail, J. Geophys. Res., 92, 64, 1987.