Search Results - "Leske, R. A."

The Modulation of Anomalous and Galactic Cosmic-Ray Oxygen over Successive Solar Cycle Minima by Strauss, R. D., Leske, R. A., Rankin, J. S.

“…Abstract Both the recent 2009 and 2020 solar minima were classified as unusually quiet and characterized with unusually high galactic cosmic-ray (GCR) levels…”
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25 MeV Proton Events Observed by the High Energy Telescopes on the STEREO A and B Spacecraft and/or at Earth During the First ∼ Seven Years of the STEREO Mission by Richardson, I. G., von Rosenvinge, T. T., Cane, H. V., Christian, E. R., Cohen, C. M. S., Labrador, A. W., Leske, R. A., Mewaldt, R. A., Wiedenbeck, M. E., Stone, E. C.

“…Using observations from the High Energy Telescopes (HETs) on the STEREO A and B spacecraft and similar observations from near-Earth spacecraft, we summarize…”
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Anomalous Cosmic Rays and Heliospheric Energetic Particles by Giacalone, J., Fahr, H., Fichtner, H., Florinski, V., Heber, B., Hill, M. E., Kóta, J., Leske, R. A., Potgieter, M. S., Rankin, J. S.

“…We present a review of Anomalous Cosmic Rays (ACRs), including the history of their discovery and recent insights into their acceleration and transport in the…”
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THE VERY UNUSUAL INTERPLANETARY CORONAL MASS EJECTION OF 2012 JULY 23: A BLAST WAVE MEDIATED BY SOLAR ENERGETIC PARTICLES by Russell, C T, Mewaldt, R A, Luhmann, J G, Mason, G M, von Rosenvinge, T T, Cohen, C M S, Leske, R A, Gomez-Herrero, R, Klassen, A, Galvin, A B, SIMUNAC, K D C

“…The giant, superfast, interplanetary coronal mass ejection, detected by STEREO A on 2012 July 23, well away from Earth, appears to have reached 1 AU with an…”
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Energetic Neutral Atoms Detected in the 2022 February 15 Solar Energetic Particle Event by Cohen, C. M. S., Leske, R. A., St. Cyr, O. C., Mason, G. M.

“…Abstract Energetic neutral atoms (ENAs) are expected to be produced near the Sun during large solar energetic particle (SEP) events. However, their detection…”
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Energy Spectra, Composition, and Other Properties of Ground-Level Events During Solar Cycle 23 by Mewaldt, R. A., Looper, M. D., Cohen, C. M. S., Haggerty, D. K., Labrador, A. W., Leske, R. A., Mason, G. M., Mazur, J. E., von Rosenvinge, T. T.

“…We report spacecraft measurements of the energy spectra of solar protons and other solar energetic particle properties during the 16 Ground Level Events (GLEs)…”
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Correlation of Coronal Mass Ejection Shock Temperature with Solar Energetic Particle Intensity by Cuesta, Manuel Enrique, McComas, D. J., Khoo, L. Y., Bandyopadhyay, R., Sharma, T., Shen, M. M., Rankin, J. S., Cummings, A. T., Szalay, J. R., Cohen, C. M. S., Schwadron, N. A., Chhiber, R., Pecora, F., Matthaeus, W. H., Leske, R. A., Stevens, M. L.

“…Abstract Solar energetic particle (SEP) events have been observed by the Parker Solar Probe (PSP) spacecraft since its launch in 2018. These events include…”
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IS⊙IS Solar γ-Ray Measurements: Initial Observations and Calibrations by Mitchell, J. G., de Nolfo, G. A., Christian, E. R., Leske, R. A., Ryan, J. M., Vievering, J. T., Hill, M. E., Labrador, A. W., Wiedenbeck, M. E., McComas, D. J., Cohen, C. M. S., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Rankin, J. S., Schwadron, N. A.

“…High-energy neutral solar radiation in the form of γ-rays and neutrons is produced as secondary products in solar flares. The characteristics of this emission…”
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Erratum: “The Isotopic Abundances of Galactic Cosmic Rays with Atomic Number 29 ≤ Z ≤ 38” (2022, ApJ, 936, 13) by Binns, W. R., Wiedenbeck, M. E., von Rosenvinge, T. T., Israel, M. H., Christian, E. R., Cummings, A. C., de Nolfo, G. A., Leske, R. A., Mewaldt, R. A., Stone, E. C.

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The Isotopic Abundances of Galactic Cosmic Rays with Atomic Number 29 ≤ Z ≤ 38 by Binns, W. R., Wiedenbeck, M. E., Rosenvinge, T. T. von, Israel, M. H., Christian, E. R., Cummings, A. C., Nolfo, G. A. de, Leske, R. A., Mewaldt, R. A., Stone, E. C.

“…Abstract The Cosmic Ray Isotope Spectrometer (CRIS) on the Advanced Composition Explorer spacecraft has been operating successfully in a halo orbit about the…”
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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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Analyses of ∼0.05–2 MeV Ions Associated with the 2022 February 16 Energetic Storm Particle Event Observed by Parker Solar Probe by Giacalone, Joe, Cohen, C. M. S., McComas, D. J., Chen, X., Dayeh, M. A., Matthaeus, W. H., Klein, K. G., Bale, S. D., Christian, E. R., Desai, M. I., Hill, M. E., Khoo, L. Y., Lario, D., Leske, R. A., McNutt, R. L., Mitchell, D. G., Mitchell, J. G., Malandraki, O., Schwadron, N. A.

“…Abstract We present analyses of 0.05–2 MeV ions from the 2022 February 16 energetic storm particle event observed by Parker Solar Probe's (PSP) IS⊙IS/EPI-Lo…”
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Parker Solar Probe Observations of Energetic Particles in the Flank of a Coronal Mass Ejection Close to the Sun by Schwadron, N. A., Bale, Stuart D., Bonnell, J., Case, A., Shen, M., Christian, E. R., Cohen, C. M. S., Davis, A. J., Desai, M. I., Goetz, K., Giacalone, J., Hill, M. E., Kasper, J. C., Korreck, K., Larson, D., Livi, R., Lim, T., Leske, R. A., Malandraki, O., Malaspina, D., Matthaeus, W. H., McComas, D. J., McNutt, R. L., Mewaldt, R. A., Mitchell, D. G., Niehof, J. T., Pulupa, M., Pecora, Francesco, Rankin, J. S., Smith, C., Stone, E. C., Szalay, J. R., Vourlidas, A., Wiedenbeck, M. E., Whittlesey, P.

“…Abstract We present an event observed by Parker Solar Probe (PSP) at ∼0.2 au on 2022 March 2 in which imaging and in situ measurements coincide. During this…”
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Composition Variation of the 2023 May 16 Solar Energetic Particle Event Observed by SolO and PSP by Xu, Z. G., Cohen, C. M. S, Leske, R. A., Muro, G. D., Cummings, A. C., McComas, D. J., Schwadron, N. A., Christian, E. R., Wiedenbeck, M. E., McNutt, R. L., Mitchell, D. G., Mason, G. M., Kouloumvakos, A., Wimmer-Schweingruber, R. F., Ho, G. C., Rodriguez-Pacheco, J.

“…Abstract In this study, we employ the combined charged particle measurements from Integrated Science Investigation of the Sun on board the Parker Solar Probe…”
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Elemental Composition and Energy Spectra of Galactic Cosmic Rays During Solar Cycle 23 by George, J. S, Lave, K. A, Wiedenbeck, M. E, Binns, W. R, Cummings, A. C, Davis, A. J, de Nolfo, G. A, Hink, P. L, Israel, M. H, Leske, R. A, Mewaldt, R. A, Scott, L. M, Stone, E. C, von Rosenvinge, T. T, Yanasak, N. E

“…We report improved measurements of elemental abundances and spectra for galactic cosmic-ray (GCR) nuclei obtained by the Cosmic Ray Isotope Spectrometer on…”
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A Living Catalog of Parker Solar Probe IS⊙IS Energetic Particle Enhancements by Mitchell, J. G., Cohen, C. M. S., Eddy, T. J., Joyce, C. J., Rankin, J. S., Shen, M. M., de Nolfo, G. A., Christian, E. R., McComas, D. J., McNutt, R. L., Wiedenbeck, M. E., Schwadron, N. A., Hill, M. E., Labrador, A. W., Leske, R. A., Mewaldt, R. A., Mitchell, D. G., Szalay, J. R.

“…Abstract Energetic charged particles are pervasive throughout the heliosphere with contributions from solar energetic particle events, stream and corotating…”
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INTERPLANETARY PROPAGATION OF SOLAR ENERGETIC PARTICLE HEAVY IONS OBSERVED AT 1 AU AND THE ROLE OF ENERGY SCALING by MASON, G. M, LI, G, COHEN, C. M. S, DESAI, M. I, HAGGERTY, D. K, LESKE, R. A, MEWALDT, R. A, ZANK, G. P

“…We have studied ~0.3 to >100 MeV nucleon super(-1) H, He, O, and Fe in 17 large western hemisphere solar energetic particle events (SEP) to examine whether the…”
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The Low-Energy Telescope (LET) and SEP Central Electronics for the STEREO Mission by Mewaldt, R. A., Cohen, C. M. S., Cook, W. R., Cummings, A. C., Davis, A. J., Geier, S., Kecman, B., Klemic, J., Labrador, A. W., Leske, R. A., Miyasaka, H., Nguyen, V., Ogliore, R. C., Stone, E. C., Radocinski, R. G., Wiedenbeck, M. E., Hawk, J., Shuman, S., von Rosenvinge, T. T., Wortman, K.

“…The Low-Energy Telescope (LET) is one of four sensors that make up the Solar Energetic Particle (SEP) instrument of the IMPACT investigation for NASA’s STEREO…”
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Proton, helium, and electron spectra during the large solar particle events of October–November 2003 by Mewaldt, R. A., Cohen, C. M. S., Labrador, A. W., Leske, R. A., Mason, G. M., Desai, M. I., Looper, M. D., Mazur, J. E., Selesnick, R. S., Haggerty, D. K.

“…The extraordinary period from late October through early November 2003 was marked by more than 40 coronal mass ejections (CME), eight X‐class flares, and five…”
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On the differences in composition between solar energetic particles and solar wind by MEWALDT, R. A, COHEN, C. M. S, ZURBUCHEN, T. H, MASON, G. M, CUMMINGS, A. C, DESAI, M. I, LESKE, R. A, RAINES, J, STONE, E. C, WIEDENBECK, M. E, VON ROSENVINGE, T. T

“…Issue Title: The Composition of Matter Although the average composition of solar energetic particles (SEPs) and the bulk solar wind are similar in a number of…”
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