Search Results - "Kasper, J. C."

The Solar Probe Plus Mission: Humanity’s First Visit to Our Star by Fox, N. J., Velli, M. C., Bale, S. D., Decker, R., Driesman, A., Howard, R. A., Kasper, J. C., Kinnison, J., Kusterer, M., Lario, D., Lockwood, M. K., McComas, D. J., Raouafi, N. E., Szabo, A.

“…Solar Probe Plus (SPP) will be the first spacecraft to fly into the low solar corona. SPP’s main science goal is to determine the structure and dynamics of the…”
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Majority of Solar Wind Intervals Support Ion-Driven Instabilities by Klein, K G, Alterman, B L, Stevens, M L, Vech, D, Kasper, J C

“…We perform a statistical assessment of solar wind stability at 1 AU against ion sources of free energy using Nyquist's instability criterion. In contrast to…”
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Shear-driven Transition to Isotropically Turbulent Solar Wind Outside the Alfvén Critical Zone by Ruffolo, D., Matthaeus, W. H., Chhiber, R., Usmanov, A. V., Yang, Y., Bandyopadhyay, R., Parashar, T. N., Goldstein, M. L., DeForest, C. E., Wan, M., Chasapis, A., Maruca, B. A., Velli, M., Kasper, J. C.

“…Abstract Motivated by prior remote observations of a transition from striated solar coronal structures to more isotropic “flocculated” fluctuations, we propose…”
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Parker Solar Probe Enters the Magnetically Dominated Solar Corona by Kasper, J C, Klein, K G, Lichko, E, Huang, Jia, Chen, C H K, Badman, S T, Bonnell, J, Whittlesey, P L, Livi, R, Larson, D, Pulupa, M, Rahmati, A, Stansby, D, Korreck, K E, Stevens, M, Case, A W, Bale, S D, Maksimovic, M, Moncuquet, M, Goetz, K, Halekas, J S, Malaspina, D, Raouafi, Nour E, Szabo, A, MacDowall, R, Velli, Marco, Dudok de Wit, Thierry, Zank, G P

“…The high temperatures and strong magnetic fields of the solar corona form streams of solar wind that expand through the Solar System into interstellar space…”
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What are the relative roles of heating and cooling in generating solar wind temperature anisotropies? by Maruca, B A, Kasper, J C, Bale, S D

“…Temperature anisotropy in the solar wind results from a combination of mechanisms of anisotropic heating (e.g., cyclotron-resonant heating and dissipation of…”
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COMPRESSIVE COHERENT STRUCTURES AT ION SCALES IN THE SLOW SOLAR WIND by Perrone, D., Alexandrova, O., Mangeney, A., Maksimovic, M., Lacombe, C., Rakoto, V., Kasper, J. C., Jovanovic, D.

“…ABSTRACT We present a study of magnetic field fluctuations in a slow solar wind stream, close to ion scales, where an increase of the level of magnetic…”
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Magnetic Reconnection as the Driver of the Solar Wind by Raouafi, Nour E., Stenborg, G., Seaton, D. B., Wang, H., Wang, J., DeForest, C. E., Bale, S. D., Drake, J. F., Uritsky, V. M., Karpen, J. T., DeVore, C. R., Sterling, A. C., Horbury, T. S., Harra, L. K., Bourouaine, S., Kasper, J. C., Kumar, P., Phan, T. D., Velli, M.

“…We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar…”
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Revisiting the structure of low‐Mach number, low‐beta, quasi‐perpendicular shocks by Wilson III, L. B., Koval, A., Szabo, A., Stevens, M. L., Kasper, J. C., Cattell, C. A., Krasnoselskikh, V. V.

“…A study of the structure of 145 low‐Mach number (M≤3), low‐beta (β≤1), quasi‐perpendicular interplanetary collisionless shock waves observed by the Wind…”
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Magnetic fluctuation power near proton temperature anisotropy instability thresholds in the solar wind by Bale, S D, Kasper, J C, Howes, G G, Quataert, E, Salem, C, Sundkvist, D

“…The proton temperature anisotropy in the solar wind is known to be constrained by the theoretical thresholds for pressure-anisotropy-driven instabilities…”
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Characterization of Turbulent Fluctuations in the Sub-Alfvénic Solar Wind by Zank, G. P., Zhao, L.-L., Adhikari, L., Telloni, D., Baruwal, Prashant, Baruwal, Prashrit, Zhu, Xingyu, Nakanotani, M., Pitňa, A., Kasper, J. C., Bale, S. D.

“…Abstract Parker Solar Probe (PSP) observed sub-Alfvénic solar wind intervals during encounters 8–14, and low-frequency magnetohydrodynamic (MHD) turbulence in…”
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EVOLUTION OF THE RELATIONSHIPS BETWEEN HELIUM ABUNDANCE, MINOR ION CHARGE STATE, AND SOLAR WIND SPEED OVER THE SOLAR CYCLE by KASPER, J. C, STEVENS, M. L, KORRECK, K. E, MARUCA, B. A, KIEFER, K. K, SCHWADRON, N. A, LEPRI, S. T

“…The changing relationships between solar wind speed, helium abundance, and minor ion charge state are examined over solar cycle 23. Observations of the…”
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Constraining Ion-Scale Heating and Spectral Energy Transfer in Observations of Plasma Turbulence by Bowen, Trevor A., Mallet, Alfred, Bale, Stuart D., Bonnell, J. W., Case, Anthony W., Chandran, Benjamin D. G., Chasapis, Alexandros, Chen, Christopher H. K., Duan, Die, Dudok de Wit, Thierry, Goetz, Keith, Halekas, Jasper S., Harvey, Peter R., Kasper, J. C., Korreck, Kelly E., Larson, Davin, Livi, Roberto, MacDowall, Robert J., Malaspina, David M., McManus, Michael D., Pulupa, Marc, Stevens, Michael, Whittlesey, Phyllis

“…We perform a statistical study of the turbulent power spectrum at inertial and kinetic scales observed during the first perihelion encounter of the Parker…”
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Interplanetary dust detection by radio antennas: Mass calibration and fluxes measured by STEREO/WAVES by Zaslavsky, A., Meyer-Vernet, N., Mann, I., Czechowski, A., Issautier, K., Le Chat, G., Pantellini, F., Goetz, K., Maksimovic, M., Bale, S. D., Kasper, J. C.

“…We analyze dust impacts recorded by the S/WAVES radio instrument onboard the two STEREO spacecraft near 1 A.U. during the period 2007–2010. The impact of a…”
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Large-amplitude electrostatic waves observed at a supercritical interplanetary shock by Wilson III, L. B., Cattell, C. A., Kellogg, P. J., Goetz, K., Kersten, K., Kasper, J. C., Szabo, A., Wilber, M.

“…We present the first observations at an interplanetary shock of large-amplitude (> 100 mV/m pk-pk) solitary waves and large-amplitude (approx.30 mV/m pk-pk)…”
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Observations of electromagnetic whistler precursors at supercritical interplanetary shocks by Wilson III, L. B., Koval, A., Szabo, A., Breneman, A., Cattell, C. A., Goetz, K., Kellogg, P. J., Kersten, K., Kasper, J. C., Maruca, B. A., Pulupa, M.

“…We present observations of electromagnetic precursor waves, identified as whistler mode waves, at supercritical interplanetary shocks using the Wind search…”
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Quantifying the Energy Budget in the Solar Wind from 13.3 to 100 Solar Radii by Halekas, J. S., Bale, S. D., Berthomier, M., Chandran, B. D. G., Drake, J. F., Kasper, J. C., Klein, K. G., Larson, D. E., Livi, R., Pulupa, M. P., Stevens, M. L., Verniero, J. L., Whittlesey, P.

“…A variety of energy sources, ranging from dynamic processes, such as magnetic reconnection and waves, to quasi steady terms, such as plasma pressure, may…”
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Estimates of Proton and Electron Heating Rates Extended to the Near-Sun Environment by Bandyopadhyay, R., Meyer, C. M., Matthaeus, W. H., McComas, D. J., Cranmer, S. R., Halekas, J. S., Huang, J., Larson, D. E., Livi, R., Rahmati, A., Whittlesey, P. L., Stevens, M. L., Kasper, J. C., Bale, S. D.

“…Abstract A central problem of space plasma physics is how protons and electrons are heated in a turbulent, magnetized plasma. The differential heating of…”
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Observations of the 2022 September 5 Solar Energetic Particle Event at 15 Solar Radii by Cohen, C. M. S., Leske, R. A., Christian, E. R., Cummings, A. C., de Nolfo, G. A., Desai, M. I., Giacalone, J., Hill, M. E., Labrador, A. W., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Mitchell, J. G., Muro, G. D., Rankin, J. S., Schwadron, N. A., Sharma, T., Shen, M. M., Szalay, J. R., Wiedenbeck, M. E., Xu, Z. G., Romeo, O., Vourlidas, A., Bale, S. D., Pulupa, M., Kasper, J. C., Larson, D. E., Livi, R., Whittlesey, P.

“…Abstract On 2022 September 5, Parker Solar Probe (Parker) observed a large solar energetic particle (SEP) event at the unprecedented distance of only 15 R S…”
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New Observations of Solar Wind 1/f Turbulence Spectrum from Parker Solar Probe by Huang, Zesen, Sioulas, Nikos, Shi, Chen, Velli, Marco, Bowen, Trevor, Davis, Nooshin, Chandran, B. D. G., Matteini, Lorenzo, Kang, Ning, Shi, Xiaofei, Huang, Jia, Bale, Stuart D., Kasper, J. C., Larson, Davin E., Livi, Roberto, Whittlesey, P. L., Rahmati, Ali, Paulson, Kristoff, Stevens, M., Case, A. W., de Wit, Thierry Dudok, Malaspina, David M., Bonnell, J. W., Goetz, Keith, Harvey, Peter R., MacDowall, Robert J.

“…Abstract The trace magnetic power spectrum in the solar wind is known to be characterized by a double power law at scales much larger than the proton…”
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Likely Common Coronal Source of Solar Wind and 3He-enriched Energetic Particles: Uncoupled Transport from the Low Corona to 0.2 au by Mitchell, D. G., Hill, M. E., McComas, D. J., Cohen, C. M. S., Schwadron, N. A., Mostafavi, P. S., Matthaeus, W. H., Raouafi, N. E., Al-Nussirat, S. T., Larson, D. E., Rahmati, A., Kasper, J. C., Whittlesey, P. L., Livi, R., Bale, S. D., Pulupa, M., Giacalone, J., McNutt, R. L., Christian, E. R., Wiedenbeck, M. E., Sharma, T.

“…Parker Solar Probe (PSP) observations of a small dispersive event on 2022 February 27 and 28 indicate scatter-free propagation as the dominant transport…”
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