PTYS/LPL Faculty

Kuiper 431

PG4gdWVycz0iem52eWdiOnh0eHlydmFAeWN5Lm5ldm1iYW4ucnFoIj54dHh5cnZhQHljeS5uZXZtYmFuLnJxaDwvbj4=

Kristopher Klein

Assistant Professor

Solar and Heliospheric Research, Theoretical Astrophysics, Parker Solar Probe

Dr. Klein's research focuses on studying fundamental plasma phenomena that governs the dynamics of systems within our heliosphere as well as more distant astrophysical bodies. He has particular interest in identifying heating and energization mechanisms in turbulent plasmas, such as the Sun's extended atmosphere known as the solar wind, as well as evaluating the effects of the departure from local thermodynamic equilibrium on nearly collisionless plasmas which are ubiquitous in space environments.

These systems are studied with a combination of analytic theory and numerical simulation, including large-scale nonlinear turbulence codes such as AstroGK and HVM. These theoretical predictions are compared to in situ observations from spacecraft including NASA's Wind and MMS and the upcoming Parker Solar Probe mission. By comparing theory with local plasma measurements, we aim to answer a variety of questions about the behavior of plasma in our solar system.

View LPL Evening Lecture from September 12, 2018, Visiting Our Sun: Unraveling the Mysteries of the Solar Atmosphere using Parker Solar Probe

Ph.D., 2013, University of Iowa

Years with LPL: 2017

Current Grants

  • Solar Wind Electrons Alphas and Protons (SWEAP): NASA's Parker Solar Probe mission Co-I
  • Improved Characterization of Solar Wind Dissipation, Energization, and Stability, NASA Heliophysics Early Career Investigator Program
  • Non-Maxwellian Distribution Functions in the Solar Wind: Dispersion Relations and Instabilities, NASA Heliophysics Supporting Research Program
  • Investigation of Electron Parameter Statistical Distributions and Association with Structures using QTN Spectroscopy
  • Vlasov-Maxwell Simulations to Resolve Electron Heating and Dissipation in Quasi-Perpendicular Shocks- NSF-DOE Basic Plasma Physics Partnership
  • Hybrid Kinetic-GRMHD simulations of Black Hole Accretion with Data-Calibrated Electron Physics, NASA Astrophysics Theory Program
  • Coupling of Electron and Ion Kinetic Physics via Collisions and Instabilities in the Expanding Solar Wind, NASA Heliophysics Supporting Research
  • Parametric Instability in the Inner Heliosphere, NASA Heliophysics Supporting Research Grant

Current Spacecraft Involvement

Current Graduate Students

Complete publications list available from: NASA ADS Author search: Kristopher G. Klein (See also ORCID 0000-0001-6038-1923)

Refereed publications (NASA ADS): Calendar Years 2017 through June 2020

Verniero, J. L., Larson, D. E., Livi, R., Rahmati, A., McManus, M. D., Pyakurel, P. S., Klein, K. G., Bowen, T. A., Bonnell, J. W., Alterman, B. L., Whittlesey, P. L., Malaspina, D. M., Bale, S. D., Kasper, J. C., Case, A. W., Goetz, K., Harvey, P. R., Korreck, K. E., MacDowall, R. J., Pulupa, M., Stevens, M. L., de Wit, T. D. Parker Solar Probe Observations of Proton Beams Simultaneous with Ion-scale Waves 2020ApJS..248....5V

Lavraud, B., Fargette, N., Réville, V., Szabo, A., Huang, J., Rouillard, A. P., Viall, N., Phan, T. D., Kasper, J. C., Bale, S. D., Berthomier, M., Bonnell, J. W., Case, A. W., Dudok de Wit, T., Eastwood, J. P., Génot, V., Goetz, K., Griton, L. S., Halekas, J. S., Harvey, P., Kieokaew, R., Klein, K. G., Korreck, K. E., Kouloumvakos, A., Larson, D. E., Lavarra, M., Livi, R., Louarn, P., MacDowall, R. J., Maksimovic, M., Malaspina, D., Nieves-Chinchilla, T., Pinto, R. F., Poirier, N., Pulupa, M., Raouafi, N. E., Stevens, M. L., Toledo-Redondo, S., Whittlesey, P. L. The Heliospheric Current Sheet and Plasma Sheet during Parker Solar Probe's First Orbit 2020ApJ...894L..19L

Verscharen, D., Parashar, T. N., Gary, S. P., Klein, K. G. Dependence of kinetic plasma waves on ion-to-electron mass ratio and light-to-Alfvén speed ratio 2020MNRAS.494.2905V

Whittlesey, P. L., Larson, D. E., Kasper, J. C., Halekas, J., Abatcha, M., Abiad, R., Berthomier, M., Case, A. W., Chen, J., Curtis, D. W., Dalton, G., Klein, K. G., Korreck, K. E., Livi, R., Ludlam, M., Marckwordt, M., Rahmati, A., Robinson, M., Slagle, A., Stevens, M. L., Tiu, C., Verniero, J. L. The Solar Probe ANalyzers—Electrons on the Parker Solar Probe 2020ApJS..246...74W

Huang, J., Kasper, J. C., Vech, D., Klein, K. G., Stevens, M., Martinović, M. M., Alterman, B. L., Ďurovcová, T., Paulson, K., Maruca, B. A., Qudsi, R. A., Case, A. W., Korreck, K. E., Jian, L. K., Velli, M., Lavraud, B., Hegedus, A., Bert, C. M., Holmes, J., Bale, S. D., Larson, D. E., Livi, R., Whittlesey, P., Pulupa, M., MacDowall, R. J., Malaspina, D. M., Bonnell, J. W., Harvey, P., Goetz, K., Dudok de Wit, T. Proton Temperature Anisotropy Variations in Inner Heliosphere Estimated with the First Parker Solar Probe Observations 2020ApJS..246...70H

Bowen, T. A., Mallet, A., Huang, J., Klein, K. G., Malaspina, D. M., Stevens, M., Bale, S. D., Bonnell, J. W., Case, A. W., Chandran, B. D. G., Chaston, C. C., Chen, C. H. K., Dudok de Wit, T., Goetz, K., Harvey, P. R., Howes, G. G., Kasper, J. C., Korreck, K. E., Larson, D., Livi, R., MacDowall, R. J., McManus, M. D., Pulupa, M., Verniero, J. L., Whittlesey, P. Ion-scale Electromagnetic Waves in the Inner Heliosphere 2020ApJS..246...66B

Chen, C. H. K., Bale, S. D., Bonnell, J. W., Borovikov, D., Bowen, T. A., Burgess, D., Case, A. W., Chandran, B. D. G., de Wit, T. D., Goetz, K., Harvey, P. R., Kasper, J. C., Klein, K. G., Korreck, K. E., Larson, D., Livi, R., MacDowall, R. J., Malaspina, D. M., Mallet, A., McManus, M. D., Moncuquet, M., Pulupa, M., Stevens, M. L., Whittlesey, P. The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere 2020ApJS..246...53C

Vech, D., Kasper, J. C., Klein, K. G., Huang, J., Stevens, M. L., Chen, C. H. K., Case, A. W., Korreck, K., Bale, S. D., Bowen, T. A., Whittlesey, P. L., Livi, R., Larson, D. E., Malaspina, D., Pulupa, M., Bonnell, J., Harvey, P., Goetz, K., Dudok de Wit, T., MacDowall, R. Kinetic-scale Spectral Features of Cross Helicity and Residual Energy in the Inner Heliosphere 2020ApJS..246...52V

Bandyopadhyay, R., Goldstein, M. L., Maruca, B. A., Matthaeus, W. H., Parashar, T. N., Ruffolo, D., Chhiber, R., Usmanov, A., Chasapis, A., Qudsi, R., Bale, S. D., Bonnell, J. W., Dudok de Wit, T., Goetz, K., Harvey, P. R., MacDowall, R. J., Malaspina, D. M., Pulupa, M., Kasper, J. C., Korreck, K. E., Case, A. W., Stevens, M., Whittlesey, P., Larson, D., Livi, R., Klein, K. G., Velli, M., Raouafi, N. Enhanced Energy Transfer Rate in Solar Wind Turbulence Observed near the Sun from Parker Solar Probe 2020ApJS..246...48B

Horbury, T. S., Woolley, T., Laker, R., Matteini, L., Eastwood, J., Bale, S. D., Velli, M., Chandran, B. D. G., Phan, T., Raouafi, N. E., Goetz, K., Harvey, P. R., Pulupa, M., Klein, K. G., Dudok de Wit, T., Kasper, J. C., Korreck, K. E., Case, A. W., Stevens, M. L., Whittlesey, P., Larson, D., MacDowall, R. J., Malaspina, D. M., Livi, R. Sharp Alfvénic Impulses in the Near-Sun Solar Wind 2020ApJS..246...45H

Case, A. W., Kasper, J. C., Stevens, M. L., Korreck, K. E., Paulson, K., Daigneau, P., Caldwell, D., Freeman, M., Henry, T., Klingensmith, B., Bookbinder, J. A., Robinson, M., Berg, P., Tiu, C., Wright, K. H., Reinhart, M. J., Curtis, D., Ludlam, M., Larson, D., Whittlesey, P., Livi, R., Klein, K. G., Martinović, M. M. The Solar Probe Cup on the Parker Solar Probe 2020ApJS..246...43C

Kim, T. K., Pogorelov, N. V., Arge, C. N., Henney, C. J., Jones-Mecholsky, S. I., Smith, W. P., Bale, S. D., Bonnell, J. W., Dudok de Wit, T., Goetz, K., Harvey, P. R., MacDowall, R. J., Malaspina, D. M., Pulupa, M., Kasper, J. C., Korreck, K. E., Stevens, M., Case, A. W., Whittlesey, P., Livi, R., Larson, D. E., Klein, K. G., Zank, G. P. Predicting the Solar Wind at the Parker Solar Probe Using an Empirically Driven MHD Model 2020ApJS..246...40K

Adhikari, L., Zank, G. P., Zhao, L.-L., Kasper, J. C., Korreck, K. E., Stevens, M., Case, A. W., Whittlesey, P., Larson, D., Livi, R., Klein, K. G. Turbulence Transport Modeling and First Orbit Parker Solar Probe (PSP) Observations 2020ApJS..246...38A

Tenerani, A., Velli, M., Matteini, L., Réville, V., Shi, C., Bale, S. D., Kasper, J. C., Bonnell, J. W., Case, A. W., de Wit, T. D., Goetz, K., Harvey, P. R., Klein, K. G., Korreck, K., Larson, D., Livi, R., MacDowall, R. J., Malaspina, D. M., Pulupa, M., Stevens, M., Whittlesey, P. Magnetic Field Kinks and Folds in the Solar Wind 2020ApJS..246...32T

Martinović, M. M., Klein, K. G., Kasper, J. C., Case, A. W., Korreck, K. E., Larson, D., Livi, R., Stevens, M., Whittlesey, P., Chandran, B. D. G., Alterman, B. L., Huang, J., Chen, C. H. K., Bale, S. D., Pulupa, M., Malaspina, D. M., Bonnell, J. W., Harvey, P. R., Goetz, K., Dudok de Wit, T., MacDowall, R. J. The Enhancement of Proton Stochastic Heating in the Near-Sun Solar Wind 2020ApJS..246...30M

Giacalone, J., Mitchell, D. G., Allen, R. C., Hill, M. E., McNutt, R. L., Szalay, J. R., Desai, M. I., Rouillard, A. P., Kouloumvakos, A., McComas, D. J., Christian, E. R., Schwadron, N. A., Wiedenbeck, M. E., Bale, S., Brown, L. E., Case, A., Chen, X., Cohen, C. M. S., Joyce, C., Kasper, J. C., Klein, K. G., Korreck, K., Larson, D. E., Livi, R., Leske, R. A., MacDowall, R. J., Matthaeus, W. H., Mewaldt, R. A., Nieves-Chinchilla, T., Pulupa, M., Roelof, E. C., Stevens, M. L., Szabo, A., Whittlesey, P. L. Solar Energetic Particles Produced by a Slow Coronal Mass Ejection at ∼0.25 au 2020ApJS..246...29G

Zhao, L.-L., Zank, G. P., Adhikari, L., Hu, Q., Kasper, J. C., Bale, S. D., Korreck, K. E., Case, A. W., Stevens, M., Bonnell, J. W., Dudok de Wit, T., Goetz, K., Harvey, P. R., MacDowall, R. J., Malaspina, D. M., Pulupa, M., Larson, D. E., Livi, R., Whittlesey, P., Klein, K. G. Identification of Magnetic Flux Ropes from Parker Solar Probe Observations during the First Encounter 2020ApJS..246...26Z

Halekas, J. S., Whittlesey, P., Larson, D. E., McGinnis, D., Maksimovic, M., Berthomier, M., Kasper, J. C., Case, A. W., Korreck, K. E., Stevens, M. L., Klein, K. G., Bale, S. D., MacDowall, R. J., Pulupa, M. P., Malaspina, D. M., Goetz, K., Harvey, P. R. Electrons in the Young Solar Wind: First Results from the Parker Solar Probe 2020ApJS..246...22H

Kasper, J. C., Bale, S. D., Belcher, J. W., Berthomier, M., Case, A. W., Chandran, B. D. G., Curtis, D. W., Gallagher, D., Gary, S. P., Golub, L., Halekas, J. S., Ho, G. C., Horbury, T. S., Hu, Q., Huang, J., Klein, K. G., Korreck, K. E., Larson, D. E., Livi, R., Maruca, B., Lavraud, B., Louarn, P., Maksimovic, M., Martinovic, M., McGinnis, D., Pogorelov, N. V., Richardson, J. D., Skoug, R. M., Steinberg, J. T., Stevens, M. L., Szabo, A., Velli, M., Whittlesey, P. L., Wright, K. H., Zank, G. P., MacDowall, R. J., McComas, D. J., McNutt, R. L., Pulupa, M., Raouafi, N. E., Schwadron, N. A. Alfvénic velocity spikes and rotational flows in the near-Sun solar wind 2019Natur.576..228K

Verscharen, D., Klein, K. G., Maruca, B. A. The multi-scale nature of the solar wind 2019LRSP...16....5V

Klein, K. G., Martinović, M., Stansby, D., Horbury, T. S. Linear Stability in the Inner Heliosphere: Helios Re-evaluated 2019ApJ...887..234K

Li, T. C., Howes, G. G., Klein, K. G., Liu, Y.-H., Tenbarge, J. M. Collisionless energy transfer in kinetic turbulence: field-particle correlations in Fourier space 2019JPlPh..85d9006L

Martinović, M. M., Klein, K. G., Bourouaine, S. Radial Evolution of Stochastic Heating in Low-β Solar Wind 2019ApJ...879...43M

Mallet, A., Klein, K. G., Chandran, B. D. G., Grošelj, D., Hoppock, I. W., Bowen, T. A., Salem, C. S., Bale, S. D. Interplay between intermittency and dissipation in collisionless plasma turbulence 2019JPlPh..85c1702M

Kasper, J. C., Klein, K. G. Strong Preferential Ion Heating is Limited to within the Solar Alfvén Surface 2019ApJ...877L..35K

Chen, C. H. K., Klein, K. G., Howes, G. G. Evidence for electron Landau damping in space plasma turbulence 2019NatCo..10..740C

van der Holst, B., Manchester, W. B., Klein, K. G., Kasper, J. C. Predictions for the First Parker Solar Probe Encounter 2019ApJ...872L..18V

Lognonné, P., Banerdt, W. B., Giardini, D., Pike, W. T., Christensen, U., Laudet, P., de Raucourt, S., Zweifel, P., Calcutt, S., Bierwirth, M., Hurst, K. J., Ijpelaan, F., Umland, J. W., Llorca-Cejudo, R., Larson, S. A., Garcia, R. F., Kedar, S., Knapmeyer-Endrun, B., Mimoun, D., Mocquet, A., Panning, M. P., Weber, R. C., Sylvestre-Baron, A., Pont, G., Verdier, N., Kerjean, L., Facto, L. J., Gharakanian, V., Feldman, J. E., Hoffman, T. L., Klein, D. B., Klein, K., Onufer, N. P., Paredes-Garcia, J., Petkov, M. P., Willis, J. R., Smrekar, S. E., Drilleau, M., Gabsi, T., Nebut, T., Robert, O., Tillier, S., Moreau, C., Parise, M., Aveni, G., Ben Charef, S., Bennour, Y., Camus, T., Dandonneau, P. A., Desfoux, C., Lecomte, B., Pot, O., Revuz, P., Mance, D., tenPierick, J., Bowles, N. E., Charalambous, C., Delahunty, A. K., Hurley, J., Irshad, R., Liu, H., Mukherjee, A. G., Standley, I. M., Stott, A. E., Temple, J., Warren, T., Eberhardt, M., Kramer, A., Kühne, W., Miettinen, E.-P., Monecke, M., Aicardi, C., André, M., Baroukh, J., Borrien, A., Bouisset, A., Boutte, P., Brethomé, K., Brysbaert, C., Carlier, T., Deleuze, M., Desmarres, J. M., Dilhan, D., Doucet, C., Faye, D., Faye-Refalo, N., Gonzalez, R., Imbert, C., Larigauderie, C., Locatelli, E., Luno, L., Meyer, J.-R., Mialhe, F., Mouret, J. M., Nonon, M., Pahn, Y., Paillet, A., Pasquier, P., Perez, G., Perez, R., Perrin, L., Pouilloux, B., Rosak, A., Savin de Larclause, I., Sicre, J., Sodki, M., Toulemont, N., Vella, B., Yana, C., Alibay, F., Avalos, O. M., Balzer, M. A., Bhandari, P., Blanco, E., Bone, B. D., Bousman, J. C., Bruneau, P., Calef, F. J., Calvet, R. J., D'Agostino, S. A., de los Santos, G., Deen, R. G., Denise, R. W., Ervin, J., Ferraro, N. W., Gengl, H. E., Grinblat, F., Hernandez, D., Hetzel, M., Johnson, M. E., Khachikyan, L., Lin, J. Y., Madzunkov, S. M., Marshall, S. L., Mikellides, I. G., Miller, E. A., Raff, W., Singer, J. E., Sunday, C. M., Villalvazo, J. F., Wallace, M. C., Banfield, D., Rodriguez-Manfredi, J. A., Russell, C. T., Trebi-Ollennu, A., Maki, J. N., Beucler, E., Böse, M., Bonjour, C., Berenguer, J. L., Ceylan, S., Clinton, J., Conejero, V., Daubar, I., Dehant, V., Delage, P., Euchner, F., Estève, I., Fayon, L., Ferraioli, L., Johnson, C. L., Gagnepain-Beyneix, J., Golombek, M., Khan, A., Kawamura, T., Kenda, B., Labrot, P., Murdoch, N., Pardo, C., Perrin, C., Pou, L., Sauron, A., Savoie, D., Stähler, S., Stutzmann, E., Teanby, N. A., Tromp, J., van Driel, M., Wieczorek, M., Widmer-Schnidrig, R., Wookey, J. SEIS: Insight's Seismic Experiment for Internal Structure of Mars 2019SSRv..215...12L

Hoppock, I. W., Chandran, B. D. G., Klein, K. G., Mallet, A., Verscharen, D. Stochastic proton heating by kinetic-Alfvén-wave turbulence in moderately high-β plasmas 2018JPlPh..84f9015H

Verscharen, D., Klein, K. G., Chandran, B. D. G., Stevens, M. L., Salem, C. S., Bale, S. D. ALPS: the Arbitrary Linear Plasma Solver 2018JPlPh..84d9003V

Vech, D., Klein, K. G., Kasper, J. C. Large-scale Control of Kinetic Dissipation in the Solar Wind 2018ApJ...863L...4V

Wilson, L. B., Stevens, M. L., Kasper, J. C., Klein, K. G., Maruca, B. A., Bale, S. D., Bowen, T. A., Pulupa, M. P., Salem, C. S. The Statistical Properties of Solar Wind Temperature Parameters Near 1 au 2018ApJS..236...41W

Klein, K. G., Alterman, B. L., Stevens, M. L., Vech, D., Kasper, J. C. Majority of Solar Wind Intervals Support Ion-Driven Instabilities 2018PhRvL.120t5102K

Kunz, M. W., Abel, I. G., Klein, K. G., Schekochihin, A. A. Astrophysical gyrokinetics: turbulence in pressure-anisotropic plasmas at ion scales and beyond 2018JPlPh..84b7101K

Vech, D., Mallet, A., Klein, K. G., Kasper, J. C. Magnetic Reconnection May Control the Ion-scale Spectral Break of Solar Wind Turbulence 2018ApJ...855L..27V

Howes, G. G., McCubbin, A. J., Klein, K. G. Spatially localized particle energization by Landau damping in current sheets produced by strong Alfvén wave collisions 2018JPlPh..84a9005H

Verniero, J. L., Howes, G. G., Klein, K. G. Nonlinear energy transfer and current sheet development in localized Alfvén wavepacket collisions in the strong turbulence limit 2018JPlPh..84a9003V

Vech, D., Klein, K. G., Kasper, J. C. Nature of Stochastic Ion Heating in the Solar Wind: Testing the Dependence on Plasma Beta and Turbulence Amplitude 2017ApJ...850L..11V

Kasper, J. C., Klein, K. G., Weber, T., Maksimovic, M., Zaslavsky, A., Bale, S. D., Maruca, B. A., Stevens, M. L., Case, A. W. A Zone of Preferential Ion Heating Extends Tens of Solar Radii from the Sun 2017ApJ...849..126K

Klein, K. G., Kasper, J. C., Korreck, K. E., Stevens, M. L. Applying Nyquist's method for stability determination to solar wind observations 2017JGRA..122.9815K

Klein, K. G., Howes, G. G., Tenbarge, J. M. Diagnosing collisionless energy transfer using field-particle correlations: gyrokinetic turbulence 2017JPlPh..83d5301K

Zucca, P., Núñez, M., Klein, K. Exploring the potential of microwave diagnostics in SEP forecasting: The occurrence of SEP events 2017JSWSC...7A..13Z

Klein, K. G. Characterizing fluid and kinetic instabilities using field-particle correlations on single-point time series 2017PhPl...24e5901K

Howes, G. G., Klein, K. G., Li, T. C. Diagnosing collisionless energy transfer using field-particle correlations: Vlasov-Poisson plasmas 2017JPlPh..83a7002H

Available filesSizeCreated
PDF icon Klein_CV.pdf112.58 KBJuly 29, 2020
Semester Course Day/Time Location Resources
Spring 2020 PTYS/ASTR 170A1-001 MW 12:30-1:45p.m. Flandrau 219B Syllabus
Course Page
Fall 2020 PTYS/ASTR/ATMO/PHYS 537-001 MWF 1:00-1:50p.m. Kuiper 308 Syllabus
Course Page
Fall 2019 PTYS/ASTR 170A1-001 TTH 9:30-10:45a.m. Kuiper 308 Syllabus
Course Page

Last updated on July 29, 2020