Our major research areas include space science, condensed matter physics, nuclear physics, medical imaging, and string theory.

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Submissions from 2005

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Metastable dissociation of doubly charged ions produced from toluene: Kinetic energy release upon charge separation and H-2 elimination , S. Feil, Olof E. Echt, K. Gluch, V. G. Hasan, S. Matt-Leubner, T. Tepnual, V. Grill, A. Bacher, P. Scheier, and T. D. Mark

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Coulomb Explosion of C7H72+ Ions Produced by Electron Impact Ionization of Toluene, K. Gluch, S. Feil, V. G. Hasan, S. Matt-Leubner, T. Tepnual, Olof Echt, V. Grill, Paul Scheier, and Tilmann D. Mark

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In-Situ Calorimetric Measurements for Space Exploration, Charles Hays, Shawna M. Hollen, M. Barmatz, and Talso Chui

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He-3 lung imaging in an open access, very-low-field human magnetic resonance imaging system, R. W. Mair, M. I. Hrovat, S. Patz, M. S. Rosen, I. C. Ruset, G. P. Topulos, L. L. Tsai, J. P. Butler, F. William Hersman, and R. L. Walsworth

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Energetics, Kinetics and Dynamics of Decaying Metastable Ions Studied with a High Resolution Three Sector Field Mass Spectrometer, S. Matt-Leubner, S. Feil, K. Gluch, J. Fedor, Aleksandar Stamatovic, Olof Echt, Paul Scheier, K. Becker, and Tilmann D. Mark

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Structure of the (111) surface of bismuth: LEED analysis and first-principles calculations RID C-1217-2011 RID B-5938-2008, H. Monig, J. Sun, Y. M. Koroteev, G. Bihlmayer, J. Wells, E. V. Chulkov, Karsten Pohl, and P. Hofmann

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An event-based approach to validating solar wind speed predictions: High-speed enhancements in the Wang-Sheeley-Arge model, M. J. Owens, C. N. Arge, Harlan E. Spence, and A. Pembroke

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Dynamic Jahn-Teller effects in isolated C-60(-) studied by near-infrared spectroscopy in a storage ring, S. Tomita, J. U. Andersen, E. Bonderup, P. Hvelplund, B. Liu, S. B. Nielsen, U. V. Pederson, J. Rangama, K. Hansen, and Olof E. Echt

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The BLAST Cherenkov detectors, B. Tonguc, R. Alarcon, T. Botto, John R. Calarco, A. Degrush, O. Filoti, E. Geis, J. Kelsey, J. Prince, E. Six, and C. Vidal

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Spectrally narrowed external-cavity high-power stack of laser diode arrays, H. Zhu, I. C. Ruset, and F. William Hersman

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Reverse convection and cusp proton aurora: Cluster, polar and image observation, Q. Zong, T. A. Fritz, Harlan E. Spence, H. U. Frey, S. B. Mende, A. Korth, and P. W. Daly

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Plasmoid in the high latitude boundary/cusp region observed by Cluster, Q. G. Zong, T. A. Fritz, Harlan E. Spence, H. Zhang, Z. Y. Huang, Z. Y. Pu, K. Glassmeier, A. Korth, P. W. Daly, A. Balogh, and H. Reme

Submissions from 2004

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Sun-to-magnetosphere modeling: CISM forecast model development using linked empirical methods, D. N. Baker, R. S. Weigel, E. J. Rigler, R. L. McPherron, D. Vassiliadis, C. N. Arge, G. L. Siscoe, and Harlan E. Spence

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On the solar wind control of cusp aurora during northward IMF, M. G. Bobra, S. M. Petrinec, S. A. Fuselier, E. S. Claflin, and Harlan E. Spence

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Fullerene Binding Energies Deduced from Evaporation Experiments: A Comprehensive Study Based on Both Kinetic Energy Release and Metastable Fractions, B. Concina, K. Gluch, S. Matt-Leubner, Olof Echt, Paul Scheier, and Tilmann D. Mark

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Anisotropic manifestation of short-range magnetic correlations in Ce0.6La0.4RhIn5, V. F. Correa, Shawna M. Hollen, L. Tung, P. G. Pagliuso, N. O. Moreno, J. C. Lashley, J. L. Sarrao, and A. H. Lacerda

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Heliospheric plasma sheets, N. U. Crooker, Chia-Lin L. Huang, S. M. Lamassa, D. E. Larson, S. W. Kahler, and Harlan E. Spence

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Hyperthermal collisions of atomic clusters and fullerenes, R. Deng and Olof E. Echt

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Vibrational energy dependence of the triplet lifetime in isolated, photoexcited C-60, Olof E. Echt, S. N. Yao, R. P. Deng, and K. Hansen

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Electron Interactions with Atomic and Molecular Clusters: Excitation, Ionization and Dissociation, J. Fedor, K. Gluch, Rajendra Parajuli, S. Matt-Leubner, Olof Echt, Frank Hagelberg, Aleksandar Stamatovic, Michael Probst, Paul Scheier, and Tilmann D. Mark

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Mechanisms and dynamics of the metastable decay in Ar-2(+), J. Fedor, K. Gluch, R. Parajuli, S. Matt-Leubner, Olof E. Echt, P. Scheier, and T. D. Mark

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Appearance energies of hydrogen and deuterium cluster ions, T. Fiegele, G. Hanel, Olof E. Echt, A. Stamatovic, P. Scheier, and T. D. Mark

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On the Stabilization of Fullerenes by Caged Atoms:  Singly and Multiply Charged Sc3N@C78 and Sc3N@C80 Ions, K. Gluch, S. Feil, S. Matt-Leubner, Olof Echt, Paul Scheier, and Tilmann D. Mark

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High-resolution kinetic energy release distributions and dissociation energies for fullerene ions C(n)(+), 42 <= n <= 90, K. Gluch, S. Matt-Leubner, Olof E. Echt, B. Concina, P. Scheier, and T. D. Mark

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On the kinetic energy release distribution for C(2) evaporation from fullerene ions , K. Gluch, S. Matt-Leubner, Olof E. Echt, R. Deng, J. U. Andersen, P. Scheier, and T. D. Mark

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High resolution measurements of kinetic energy release distributions of neon, argon, and krypton cluster ions using a three sector field mass spectrometer, K. Gluch, S. Matt-Leubner, L. Michalak, Olof E. Echt, A. Stamatovic, P. Scheier, and T. D. Mark

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Plasma sheet climatology: Geotail observations and LFM model comparisons, T. Guild, Harlan E. Spence, L. Kepko, M. Wiltberger, C. Goodrich, J. Lyon, and W. J. Hughes

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A statistical study of the global structure of the ring current, A. M. Jorgensen, Harlan E. Spence, W. J. Hughes, and H. J. Singer

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Relative timing of substorm onset phenomena, L. Kepko, M. G. Kivelson, R. L. McPherron, and Harlan E. Spence

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Ne-2(+)[II(1/2)(u)]: radiative decay and electronic predissociation , S. Matt-Leubner, J. Fedor, R. Parajuli, A. Stamatovic, Olof E. Echt, F. Hagelberg, K. Gluch, M. Probst, P. Scheier, and T. D. Mark

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Phase diagram of hydrogen on Be(0001) from reconstruction-induced surface core-level shifts , Karsten Pohl, E. W. Plummer, S. V. Hoffmann, and P. Hofmann

Thermal Expansion and Magnetostriction of the Heavy Fermion Borocarbide YbNi2B2C, G M. Schmiedeshoff, Shawna M. Hollen, V. F. Correa, A. H. Lacerda, J C. Cooley, M A. Avila, S L. Budko, and P C. Canfield

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Roles of empirical modeling within CISM, G. Siscoe, D. Baker, R. Weigel, J. Hughes, and Harlan E. Spence

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Center for integrated space weather modeling metrics plan and initial model validation results, Harlan E. Spence, D. Baker, A. Burns, T. Guild, Chia-Lin L. Huang, G. Siscoe, and R. Weigel

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Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID, Q. Zong, T. A. Fritz, Harlan E. Spence, K. Oksavik, Z. Y. Pu, A. Korth, and P. W. Daly

Submissions from 2003

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Hybrid spin-exchange optical pumping of He-3, E. Babcock, I. Nelson, S. Kadlecek, B. Driehuys, L. W. Anderson, F. William Hersman, and T. G. Walker

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Multilayer thermal expansion of Be(0001) determined from surface core level shifts , A. Baraldi, S. Lizzit, Karsten Pohl, P. Hofmann, and S. de Gironcoli

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Formation of the LLBL in the Context of a Unifying Magnetopause Reconnection Mechanism, Athanasios Boudouridis, Harlan E. Spence, and T. G. Onsager

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Reply to comment on “MeV magnetosheath ions energized at the bow shock” by J. Chen, TA Fritz, and RB Sheldon, S. Chang, J. D. Scudder, K. Kudela, Harlan E. Spence, J. F. Fennell, R. P. Lepping, R. P. Lin, and C. T. Russell

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Suprathermal electron isotropy in high-beta solar wind and its role in heat flux dropouts, N. U. Crooker, D. E. Larson, S. W. Kahler, S. M. Lamassa, and Harlan E. Spence

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Mass spectrometric study of K+ + C-60 collisions, R. Deng, A. Clegg, and Olof E. Echt

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On the triplet lifetime in free, photo-excited C-60, R. Deng, M. Treat, Olof E. Echt, and K. Hansen

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Does the Triplet State Play a Role in Delayed Ionization of C60?, Olof Echt, S. Yao, Rongping Deng, and Klavs Hansen

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Probing electronic states of Ne-2(+) and Ar-2(+) by measuring kinetic-energy-release distributions , J. Fedor, R. Parajuli, S. Matt-Leubner, Olof E. Echt, F. Hagelberg, K. Gluch, A. Stamatovic, M. Probst, P. Scheier, and T. D. Mark

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Kinetic-energy release in Coulomb explosion of metastable C3H52+, K. Gluch, J. Fedor, S. Matt-Leubner, Olof E. Echt, A. Stamatovic, M. Probst, P. Scheier, and T. D. Mark

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Energetics and dynamics of decaying cluster ions, K. Gluch, J. Fedor, S. Matt-Leubner, R. Parajuli, C. Mair, A. Stamatovic, Olof E. Echt, C. Lifshitz, J. Harvey, F. Hagelberg, Z. Herman, M. Probst, P. Scheier, and T. D. Mark

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Kinetic Energy Release Distribution and Binding Energy Deduced from C2 Evaporation for Fullerene Ions Cn+ (with 42 <= n <= 90), K. Gluch, S. Matt-Leubner, Olof Echt, Rongping Deng, Aleksandar Stamatovic, Paul Scheier, and Tilmann D. Mark

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Observations of discrete, global magnetospheric oscillations directly driven by solar wind density variations, L. Kepko and Harlan E. Spence

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Time-resolved kinetic energy releases in propane, S. Matt-Leubner, A. Stamatovic, R. Parajuli, P. Scheier, T. D. Mark, Olof E. Echt, and C. Lifshitz

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Bursty energetic electrons confined in flux ropes in the cusp region, Q. G. Zong, T. A. Fritz, Harlan E. Spence, M. Dunlop, Z. Y. Pu, A. Korth, P. W. Daly, A. Balogh, and H. Reme

Submissions from 2002

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A new look at the pulsed reconnection model of the dayside magnetopause, Athanasios Boudouridis, Harlan E. Spence, and T. G. Onsager

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Collisional formation and dissociation of Na@C-60(+), R. Deng and Olof E. Echt

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Collisions of Na+ with C60: Energetics of Endohedral Na@C60+, and Heat Capacity of C60, Rongping Deng and Olof Echt

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Kinetic energy release in exciton-driven metastable decay of neon cluster ions , Olof E. Echt, R. Parajuli, S. Matt, P. Scheier, and T. D. Mark

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Multiply charged clusters , Olof E. Echt, P. Scheier, and T. D. Maerk

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Cooper pair islanding model of insulating nanohoneycomb films, Shawna M. Hollen and J M. Valles Jr.

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ULF waves in the solar wind as direct drivers of magnetospheric pulsations, L. Kepko, Harlan E. Spence, and H. J. Singer

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Kinetics and Energetics of Spontaneous and Electron-Induced Fragmentation of Molecular Ions and Cluster Ions, S. Matt, Rajendra Parajuli, Olof Echt, C. Lifshitz, Aleksandar Stamatovic, Paul Scheier, and Tilmann D. Mark

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Binding Energies of Cluster Ions, Rajendra Parajuli, S. Matt, Olof Echt, Aleksandar Stamatovic, Paul Scheier, and Tilmann D. Mark

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Binding energies of neon and krypton cluster ions, Rajendra Parajuli, S. Matt, Olof Echt, Aleksandar Stamatovic, Paul Scheier, and Tilmann D. Mark

Submissions from 2001

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Investigation of magnetopause reconnection models using two colocated, low‐altitude satellites: A unifying reconnection geometry, A. Boudouridis, Harlan E. Spence, and T. G. Onsager

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MeV magnetosheath ions energized at the bow shock, S. Chang, J. D. Scudder, K. Kudela, Harlan E. Spence, J. F. Fennell, R. P. Lepping, R. P. Lin, and C. T. Russell

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Direct observation of misfit dislocation glide on surfaces, J. de la Figuera, Karsten Pohl, O. R. de la Fuente, A. K. Schmid, N. C. Bartelt, C. B. Carter, and R. Q. Hwang

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Determination of buried dislocation structures by scanning tunneling microscopy, J. de la Figuera, A. K. Schmid, N. C. Bartelt, Karsten Pohl, and R. Q. Hwang

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Electron and Ion High Resolution Interaction Studies Using Sector Field Mass Spectrometry: Propane, a Case Study, T. Fiegele, V. Grill, S. Matt, M. Lezius, G. Hanel, Michael Probst, Paul Scheier, K. Becker, H. Deutsch, Olof Echt, Aleksandar Stamatovic, and Tilmann D. Mark

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Charge exchange contribution to the decay of the ring current, measured by energetic neutral atoms (ENAs), A. M. Jorgensen, M. G. Henderson, E. C. Roelof, G. D. Reeves, and Harlan E. Spence

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Binding energy of C-60(+) revisited - What is the problem? , S. Matt, Olof E. Echt, P. Scheier, and T. D. Mark

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Electron Impact Ionization of Edge Plasma Constituents, S. Matt, T. Fiegele, G. Senn, Paul Scheier, K. Becker, H. Deutsch, Olof Echt, Aleksandar Stamatovic, and Tilmann D. Mark

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Decay reactions of rare gas cluster ions: kinetic energy release distributions and binding energies, R. Parajuli, S. Matt, Olof E. Echt, A. Stamatovic, P. Scheier, and T. D. Mark

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The Magnetospheric Mapping Mission, Harlan E. Spence

Submissions from 2000

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Surface-induced dissociation of singly and multiply charged fullerene ions , F. Biasioli, T. Fiegele, C. Mair, Z. Herman, Olof E. Echt, F. Aumayr, H. P. Winter, and T. D. Mark

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Absolute separation energies for Na clusters, J. Borggreen, K. Hansen, F. Chandezon, T. Dossing, M. Elhajal, and Olof E. Echt

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Energetic magnetosheath ions connected to the Earth's bow shock: Possible source of cusp energetic ions, S. W. Chang, J. D. Scudder, J. F. Fennell, R. Friedel, R. P. Lepping, C. T. Russell, K. J. Trattner, S. A. Fuselier, W. K. Peterson, and Harlan E. Spence

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Collisional Formation of Metallofullerenes, Rongping Deng, Rory MacCrimmon, and Olof Echt

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Surface-Induced Reactions of Singly and Multiply Charged Parent and Fragment Ions of C60, Olof Echt, T. Fiegele, F. Biasioli, C. Mair, Z. Herman, Paul Scheier, and Tilmann D. Mark

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Surface-Induced Reactions of Singly and Multiply Charged Parent and Fragment Ions of C60, T. Fiegele, F. Biasioli, C. Mair, Olof Echt, Z. Herman, Paul Scheier, Friedrich Aumayr, H. P. Winter, and Tilmann D. Mark

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Surface-Induced Reactions of Cn+ , 52 < n < 60, T. Fiegele, Olof Echt, F. Biasioli, C. Mair, and Tilmann D. Mark

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Polar CEPPAD/IPS energetic neutral atom (ENA) images of a substorm injection, M. G. Henderson, G. D. Reeves, A. M. Jorgensen, Harlan E. Spence, L. A. Frank, J. B. Sigwarth, J. F. Fennell, J. L. Roeder, J. B. Blake, K. Yumoto, and S. Bourdarie

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Association of energetic neutral atom bursts and magnetospheric substorms, A. M. Jorgensen, L. Kepko, M. G. Henderson, Harlan E. Spence, G. D. Reeves, J. B. Sigwarth, and L. A. Frank

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Kinetic energy release in electron-induced decay reactions of molecular ions: C3H8+ and C3H7+, S. Matt, Olof E. Echt, A. Stamatovic, and T. D. Mark

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The C60 Binding Energy: The Finale of a Long Story, S. Matt, Olof Echt, C. Lifshitz, Paul Scheier, and Tilmann D. Mark

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Kinetics and Energetics of Electron Impact Ionization of Molecules: Ionization Cross Section, Appearance Energies and Kinetic Energy Release, S. Matt, T. Fiegele, G. Hanel, D. Muigg, Stephan Denifl, K. Becker, H. Deutsch, Olof Echt, N. Mason, Aleksandar Stamatovic, Paul Scheier, and Tilmann D. Mark

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Novel Decay Channels of Carbon Cluster Ions, C40z+ and C41z+ (z = 3, 4), Rajendra Parajuli, Paul Scheier, V. Grill, S. Matt, Olof Echt, and Tilmann D. Mark

Submissions from 1999

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Magnetospheric constellation: Past, present and future, V. Angelopoulos and Harlan E. Spence

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Evaporation Rates for Na Clusters, J. Borggreen, F. Chandezon, Olof Echt, H. Grimley, Klavs Hansen, P. M. Hansen, and C. Ristori

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Cluster Ions Measured Using Mass Spectrometry, Olof Echt and Tilmann D. Mark

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Dayside open field line region boundary at high altitudes, J. F. Fennell, J. L. Roeder, R. Friedel, M. Grande, and Harlan E. Spence

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Cusp energetic particle events measured by POLAR spacecraft, T. A. Fritz, J. Chen, R. B. Sheldon, Harlan E. Spence, J. F. Fennell, S. Livi, C. T. Russell, and J. S. Pickett

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Thermionic Emission and Fragmentation of C60 - Reply to Comment by Stampfli and Märk, Klavs Hansen and Olof Echt

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Energetic neutral atom imaging with the Polar CEPPAD/IPS instrument: Initial forward modeling results, M. G. Henderson, G. D. Reeves, K. R. Moore, Harlan E. Spence, A. M. Jorgensen, J. F. Fennell, J. B. Blake, and E. C. Roelof

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A study of omega bands and Ps6 pulsations on the ground, at low altitude and at geostationary orbit, A. M. Jorgensen, Harlan E. Spence, T. J. Hughes, and D. McDiarmid

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Kinetic Energy Release Distributions and Evaporation Energies for Metastable Fullerene Ions, S. Matt, Olof Echt, M. Sonderegger, R. David, Paul Scheier, J. Laskin, C. Lifshitz, and Tilmann D. Mark

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Kinetic Energy Release for Metastable Fullerene Ions, S. Matt, M. Sonderegger, R. David, Olof Echt, Paul Scheier, J. Laskin, C. Lifshitz, and Tilmann D. Mark

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Constellation pathfinder: a university nanosatellite, C. D. Rayburn, Harlan E. Spence, H. E. Petschek, M. Bellino, J. Vickers, M. Murphy, N. Dennehy, D. Sargent, and M. Socha

Submissions from 1998

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Coronal mass ejections, magnetic clouds, and relativistic magnetospheric electron events: ISTP, D. N. Baker, T. I. Pulkkinen, X. Li, S. G. Kanekal, J. B. Blake, R. S. Selesnick, M. G. Henderson, G. D. Reeves, Harlan E. Spence, and G. Rostoker

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Cusp energetic ions: A bow shock source, S. W. Chang, J. D. Scudder, S. A. Fuselier, J. F. Fennell, K. J. Trattner, J. S. Pickett, Harlan E. Spence, J. D. Menietti, W. K. Peterson, R. P. Lepping, and R. Friedel

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Cusp energetic particle events: Implications for a major acceleration region of the magnetosphere, J. Chen, T. A. Fritz, R. B. Sheldon, Harlan E. Spence, W. N. Spjeldvik, J. F. Fennell, S. Livi, C. T. Russell, J. S. Pickett, and D. A. Gurnett

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Efficiency of Thermionic Emission from C60, Rongping Deng and Olof Echt

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Observation of 40 keV Field-Aligned Ion Beams, J. F. Fennell, R. B. Sheldon, and Harlan E. Spence

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Dissociation of Singly and Multiply Charged Fullerenes: Emission of C4, or Sequential Emission of C2?, M. Foltin, Olof Echt, B. Dunser, R. Worgotter, D. Muigg, S. Matt, and Tilmann D. Mark