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245 results on '"Stasiewicz, K."'

1. Acceleration of solar wind ions to 1 MeV by electromagnetic structures upstream of the Earth's bow shock

Author

Stasiewicz, K., Markidis, S., Eliasson, B., Strumik, M., and Yamauchi, M.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics
Abstract

We present measurements from the ESA/NASA Cluster mission that show in situ acceleration of ions to energies of 1 MeV outside the bow shock. The observed heating can be associated with the presence of electromagnetic structures with strong spatial gradients of the electric field that lead to ion gyro-phase breaking and to the onset of chaos in ion trajectories. It results in rapid, stochastic acceleration of ions in the direction perpendicular to the ambient magnetic field. The electric potential of the structures can be compared to a field of moguls on a ski slope, capable of accelerating and ejecting the fast running skiers out of piste. This mechanism may represent the universal mechanism for perpendicular acceleration and heating of ions in the magnetosphere, the solar corona and in astrophysical plasmas. This is also a basic mechanism that can limit steepening of nonlinear electromagnetic structures at shocks and foreshocks in collisionless plasmas., Comment: 9 pages, 5 figures

Published
2013
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5. Heating of the Solar Corona by Dissipative Alfven Solitons

Author

Stasiewicz, K.

Subjects
Astrophysics, Physics - Plasma Physics, Physics - Space Physics
Abstract

Solar photospheric convection drives myriads of dissipative Alfven solitons (hereinafter called alfvenons) capable of accelerating electrons and ions to energies of hundreds of keV and producing the X-ray corona. Alfvenons are exact solutions of two-fluid equations for a collisionless plasma and represent natural accelerators for conversion of the electromagnetic energy flux driven by convective flows into kinetic energy of charged particles in space and astrophysical plasmas. Their properties have been experimentally verified in the magnetosphere, where they accelerate auroral electrons to tens of keV., Comment: 4 pages, 4 color figures, accepted for publication in Phys. Rev. Lett

Published
2006
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7. Magnetosheath Interaction with the high Latitude Magnetopause

Author

Savin, S., Skalsky, A., Zelenyi, L., Avanov, L., Borodkova, N., Klimov, S., Lutsenko, V., Panov, E., Romanov, S., Smirnov, V., Yermolaev, Yu., Song, P., Amata, E., Consolini, G., Fritz, T. A., Buechner, J., Nikutowski, B., Blecki, J., Farrugia, C., Maynard, N., Pickett, J., Sauvaud, J. A., Rauch, J. L., Trotignon, J. G., Khotyaintsev, Y., Stasiewicz, K., Fritz, Theodore A., editor, and Fung, Shing F., editor

Published
2005
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8. The Electric Field and Wave Experiment for the Cluster Mission

Author

Gustafsson, G., Boström, R., Holback, B., Holmgren, G., Lundgren, A., Stasiewicz, K., Åhlén, L., Mozer, F. S., Pankow, D., Harvey, P., Berg, P., Ulrich, R., Pedersen, A., Schmidt, R., Butler, A., Fransen, A. W. C., Klinge, D., Thomsen, M., Fälthammar, C.-G., Lindqvist, P.-A., Christenson, S., Holtet, J., Lybekk, B., Sten, T. A., Tanskanen, P., Lappalainen, K., Wygant, J., Escoubet, C. P., editor, Russell, C. T., editor, and Schmidt, R., editor

Published
1997
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16. Turbulent boundary layer at the border of geomagnetic trap

Author

Savin, S. P., Zelenyi, L. M., Romanov, S. A., Klimov, S. I., Skalsky, A. A., Galeev, A. A., Smirnov, V. N., Nozdrachev, M. N., Yermolaev, Yu. I., Avanov, L. A., Amata, E., Blecki, J., Buechner, J., Nikutowski, B., Dubinin, É. M., Nemecek, Z., Safrankova, J., Pedersen, A., Rauch, J. L., Rustenbach, J., Sauvaud, J. A., Song, P., and Stasiewicz, K.

Published
2001
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18. Plasma transfer processes at the magnetopause

Author

Sibeck, D.G., Paschmann, G., Treumann, R.A., Fuselier, S.A., Lennartsson, W., Lockwood, M., Lundin, R., Ogilvie, K.W., Onsager, T.G., Phan, T.-D., Roth, M., Scholer, M., Sckopke, N., Stasiewicz, K., and Yamauchi, M.

Published
1999
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21. Chapter 5: Plasma Transfer Processes at the Magnetopause

Author

Sibeck, D. G., Paschmann, G., Treumann, R. A., Fuselier, S. A., Lennartsson, W., Lockwood, M., Lundin, R., Ogilvie, K. W., Onsager, T. G., Phan, T.-D., Roth, M., Scholer, M., Sckopke, N., Stasiewicz, K., and Yamauchi, M.

Published
1999

22. Multi-spacecraft tracing of turbulent boundary layer

Author

Savin, S., Zelenyi, L., Maynard, N., Sandahl, I., Kawano, H., Russell, C.T., Romanov, S., Amata, E., Avanov, L., Blecki, J., Buechner, J., Consolini, G., Gustafsson, G., Klimov, S., Marcucci, F., Nemecek, Z., Nikutowski, B., Pickett, J., Rauch, J.L., Safrankova, J., Skalsky, A., Smirnov, V., Stasiewicz, K., Song, P., Trotignon, J.G., and Yermolaev, Yu.

Published
2002
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24. Accelerated particles from turbulent boundary layer

Author

Savin, S., Błęcki, J., Pissarenko, N., Lutsenko, V., Kirpichev, I., Budnik, E., Borodkova, N., Nozdrachev, M., Zelenyi, L., Romanov, V., Sandahl, I., Sauvaud, J-A., Buechner, J., Nikutowski, B., Gustafsson, G., Stasiewicz, K., and Korepanov, V.

Published
2002
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26. The spherical probe Electric Field and Wave Experiment for the Cluster mission

Author

Gustafsson, G, Bostroem, R, Holback, B, Holmgren, G, Stasiewicz, K, Aggson, T, Pfaff, R, Block, L. P, Faelthammar, C.-G, and Lindqvist, P.-A

Subjects
Astronautics (General)
Abstract

The Electric Field and Wave experiment (EFW) on Cluster, which is designed to measure the electric field and density fluctuations with sampling rates, on some occasions, up to 36,000 samples/s in two channels, is decribed. Langmuir sweeps can also be made to determine the electron density and temperature. Among the more interesting objectives of the experiment is to study nonlinear processes that result in acceleration of plasma. Large scale phenomena where all four spacecraft are needed are also studied.

Published
1993

37. Magnetosheath Interaction with the high Latitude Magnetopause

Author

Savin, S., primary, Skalsky, A., additional, Zelenyi, L., additional, Avanov, L., additional, Borodkova, N., additional, Klimov, S., additional, Lutsenko, V., additional, Panov, E., additional, Romanov, S., additional, Smirnov, V., additional, Yermolaev, Yu., additional, Song, P., additional, Amata, E., additional, Consolini, G., additional, Fritz, T. A., additional, Buechner, J., additional, Nikutowski, B., additional, Blecki, J., additional, Farrugia, C., additional, Maynard, N., additional, Pickett, J., additional, Sauvaud, J. A., additional, Rauch, J. L., additional, Trotignon, J. G., additional, Khotyaintsev, Y., additional, and Stasiewicz, K., additional

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47. First results of electric field and density observations by Cluster EFW based on initial months of operation

Author

Gustafsson, Georg, Andre, M., Carozzi, T., Eriksson, A. I., Fälthammar, Carl-Gunne, Grard, R., Holmgren, G., Holtet, J. A., Ivchenko, Nickolay V., Karlsson, Tomas, Khotyaintsev, Y., Klimov, S., Laakso, H., Lindqvist, Per-Arne, Lybekk, B., Marklund, Göran T., Mozer, F., Mursula, K., Pedersen, A., Popielawska, B., Savin, S., Stasiewicz, K., Tanskanen, P., Vaivads, Andris, Wahlund, J. E., Gustafsson, Georg, Andre, M., Carozzi, T., Eriksson, A. I., Fälthammar, Carl-Gunne, Grard, R., Holmgren, G., Holtet, J. A., Ivchenko, Nickolay V., Karlsson, Tomas, Khotyaintsev, Y., Klimov, S., Laakso, H., Lindqvist, Per-Arne, Lybekk, B., Marklund, Göran T., Mozer, F., Mursula, K., Pedersen, A., Popielawska, B., Savin, S., Stasiewicz, K., Tanskanen, P., Vaivads, Andris, and Wahlund, J. E.

Abstract

Highlights are presented from studies of the electric field data from various regions along the CLUSTER orbit. They all point towards a very high coherence for phenomena recorded on four spacecraft that are separated by a few hundred kilometers for structures over the whole range of apparent frequencies from I mHz to 9 kHz. This presents completely new opportunities to study spatial-temporal plasma phenomena from the magnetosphere out to the solar wind. A new probe environment was constructed for the CLUSTER electric field experiment that now produces data of unprecedented quality. Determination of plasma flow in the solar wind is an example of the capability of the instrument., QC 20100525

Published
2001
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48. Langmuir wave structures registered by FREJA: Analysis and modeling.

Author

Khotyaintsev, Y, Lizunov, G, Stasiewicz, K, Khotyaintsev, Y, Lizunov, G, and Stasiewicz, K

Abstract

A large set of observations of Langmuir emissions generated by super-thermal electron beams in the topside polar ionosphere has been obtained during the recent FREJA mission. Langmuir emissions appeared as a chain of strongly modulated wave packets; in ma

Published
2001

49. Parametric decay to lower hybrid waves as a source of modulated Langmuir waves in the topside ionosphere.

Author

Lizunov, G.V., Khotyaintsev, Y. and Stasiewicz, K. and Lizunov, G.V., Khotyaintsev, Y. and Stasiewicz, K.

Abstract

Langmuir emissions generated by electron beams in space plasmas usually appear as chains of strongly modulated wave packets. In this paper, we present a quantitative analysis of three-wave interaction between Langmuir and lower hybrid waves, L-1 <----> L

Published
2001

50. Wave-particle interaction in the polar cusp.

Author

Blecki, J., Savin, S., Rothkaehl, H., Stasiewicz, K., Wronowski, R., Nemecek, Z., Safrankowa, J. and Kudela, K. and Blecki, J., Savin, S., Rothkaehl, H., Stasiewicz, K., Wronowski, R., Nemecek, Z., Safrankowa, J. and Kudela, K.

Abstract

This paper presents the review of the observations of the low frequency plasma waves together with plasma particles which were done by Interball 1 Magion-4 subsatellite to Interball 1 and Freja satellites in the different cusp regions. The detailed study

Published
2001

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