Navegar

Colección

Datos Estadísticas

Artículo

Delva, M.; Mazelle, C.; Bertucci, C.; Volwerk, M.; Vörös, Z.; Zhang, T.L. "Proton cyclotron wave generation mechanisms upstream of Venus" (2011) Journal of Geophysical Research: Space Physics. 116(2)
Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Long-term observations of proton cyclotron waves in the upstream region of Venus raise the question of under which general solar wind conditions these waves are generated and maintained. The waves are characterized by their occurrence at the local proton cyclotron frequency and left-hand polarization, both in the spacecraft frame. Magnetometer data of the Venus Express spacecraft for two Venus years of observations are analyzed before, during, and after the occurrence of these waves. The configuration of the upstream magnetic field and the solar wind velocity is investigated, to study if the waves are generated from a ring distribution of pickup ions in velocity space or from a parallel pickup ion beam, i.e., for quasi-parallel conditions of solar wind velocity and magnetic field when the solar wind motional electric field is weak. It is found that stable and mainly quasi-parallel magnetic field conditions for up to ∼20 min prior to wave observation are present, enabling sufficient ion pickup and wave growth to obtain observable waves in the magnetometer data. Persistent waves occur mainly under quasi-parallel conditions. This is in agreement with linear theory, which predicts efficient wave growth for instabilities driven by field-aligned planetary ion beams, already for low pickup ion density. The occurrence of highly coherent waves at 4 RV upstream toward the Sun implies that planetary neutral hydrogen is initially picked up at least 5 RV toward the Sun from a sufficiently dense Venus hydrogen exosphere. Copyright 2011 by the American Geophysical Union.

Registro:

Documento: Artículo
Título:Proton cyclotron wave generation mechanisms upstream of Venus
Autor:Delva, M.; Mazelle, C.; Bertucci, C.; Volwerk, M.; Vörös, Z.; Zhang, T.L.
Filiación:Space Research Institute, Austrian Academy of Sciences, A-8042 Graz, Austria
Centre d'Etude Spatiale des Rayonnements, Université Paul Sabatier, CNRS, F-31028 Toulouse Cedex 4, France
Institute for Astronomy and Space Physics, University of Buenos Aires, Ciudad Universitaria, Casilla de Correco 67, Sucursal 28, C1428ZAA, Buenos Aires, Argentina
Institute of Astro- and Particle Physics, University of Innsbruck, Innsbruck A-6020, Austria
Año:2011
Volumen:116
Número:2
DOI: http://dx.doi.org/10.1029/2010JA015826
Título revista:Journal of Geophysical Research: Space Physics
Título revista abreviado:J. Geophys. Res. A. Space Phys.
ISSN:21699402
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21699402_v116_n2_p_Delva

Referencias:

  • Barabash, S., Fedorov, A., Sauvaud, J.J., Lundin, R., Russell, C.T., Futaana, Y., Zhang, T.L., Bochsler, P., The loss of ions from Venus through the plasma wake (2007) Nature, 450 (7170), pp. 650-653. , DOI 10.1038/nature06434, PII NATURE06434
  • Bertucci, C., (2003) Ètude de L'interaction du Vent Solaire Avec Mars: Implications sur les Méchanismes D'echappement atmosphérique, , Ph. D. thesis, Univ. Paul Sabatier, Toulouse, France
  • Bertucci, C., Mazelle, C., Acuna, M.H., Interaction of the solar wind with Mars from Mars Global Surveyor MAG/ER observations (2005) Journal of Atmospheric and Solar-Terrestrial Physics, 67 (SPEC. ISS.), pp. 1797-1808. , DOI 10.1016/j.jastp.2005.04.007, PII S1364682605001513
  • Brain, D.A., Observations of low-frequency electro-magnetic plasma waves upstream from the Martian shock (2002) J. Geophys. Res., 107 (A6), p. 1076. , doi:10.1029/2000JA000416
  • Brinca, A.L., Cometary linear instabilities: From profusion to perspective, in cometary plasma processes (1991) Geophys. Monogr. Ser., 61, pp. 211-221. , edited by A. D. Johnstone, AGU, Washington, D. C
  • Coates, A.J., Wilken, B., Johnstone, A.D., Jockers, K., Glassmeier, K.H., Huddleston, D.E., Bulk properties and velocity distributions of water group ions at Comet Halley: Giotto measurements (1990) J. Geophys. Res., 95, pp. 10249-10260. , doi:10.1029/JA095iA07p10249
  • Coates, A., Johnstone, A., Wilken, B., Neubauer, F., Velocity space diffusion and nongyrotropy of pickup water group ions at Comet Grigg-Skjellerup (1993) J. Geophys. Res., 98, pp. 20985-20994. , doi:10.1029/93JA02535
  • Cowee, M.M., Russell, C.T., Strangeway, R.J., One-dimensional hybrid simulations of planetary ion pickup: Effects of variable plasma and pickup conditions (2008) J. Geophys. Res., 113, pp. A08220. , doi:10.1029/2008JA013066
  • Delva, M., Zhang, T.L., Volwerk, M., Magnes, W., Russell, C.T., Wei, H.Y., First upstream proton cyclotron wave observations at Venus (2008) Geophysical Research Letters, 35 (3), pp. L03105. , DOI 10.1029/2007GL032594
  • Delva, M., Zhang, T.L., Volwerk, M., Vörös, Z., Pope, S.A., Proton cyclotron waves in the solar wind at Venus (2008) J. Geophys. Res., 113, pp. E00B06. , doi:10.1029/2008JE003148
  • Delva, M., Volwerk, M., Mazelle, C., Chaufray, J.Y., Bertaux, J.L., Zhang, T.L., Vörös, Z., Hydrogen in the extended Venus exosphere (2009) Geophys. Res. Lett., 36, pp. L01203. , doi:10.1029/2008GL036164
  • Gary, P., Electromagnetic ion/ion instabilities and their consequences in space plasmas: A review (1991) Space Sci. Rev., 56, pp. 373-415. , doi:10.1007/BF00196632
  • Huddleston, D.E., Johnstone, A.D., Relationship between wave energy and free energy from pick-up ions in the Comet Halley environment (1992) J. Geophys. Res., 97, pp. 12217-12230. , doi:10.1029/92JA00726
  • Huddleston, D.E., Strangeway, R.J., Warnecke, J., Russell, C.T., Kivelson, M.G., Bagenal, F., Ion cyclotron waves in the Io torus during the Galileo encounter: Warm plasma dispersion analysis (1997) Geophysical Research Letters, 24 (17), pp. 2143-2146. , 97GL01203
  • Jarvinen, R., Kallio, E., Dyadechkin, S., Janhunen, P., Sillanpää, I., Widely different characteristics of oxygen and hydrogen ion escape from Venus (2010) Geophys. Res. Lett., 37, pp. L16201. , doi:10.1029/2010GL044062
  • Johnstone, A.D., Alfvénic turbulence in the solar wind flow during the approach to comet P/Halley (1987) Astron. Astrophys., 187, p. 25
  • Kallio, E., Luhmann, J.G., Barabash, S., Charge exchange near Mars: The solar wind absorption and energetic neutral atom production (1997) Journal of Geophysical Research A: Space Physics, 102 (A10), pp. 22183-22197. , 97JA01662
  • Kallio, E., Jarvinen, R., Janhunen, P., Venus-solar wind interaction: Asymmetries and the escape of O+ ions (2006) Planetary and Space Science, 54 (13-14), pp. 1472-1481. , DOI 10.1016/j.pss.2006.04.030, PII S0032063306001711, The Planet Venus and the Venus Express Mission
  • Lee, M., Ultra-low frequency waves at comets, in plasma waves and instabilities at comets and in magnetospheres (1989) Geophys. Monogr. Ser., 53, pp. 13-29. , edited by B. T. Tsurutani and H. Oya, AGU, Washington, D. C
  • Mazelle, C., Neubauer, F.M., Discrete wave packets at the proton cyclotron frequency at comet P/Halley (1993) Geophys. Res. Lett., 20, pp. 153-156. , doi:10.1029/92GL02613
  • Mazelle, C., Bow shock and upstream phenomena at Mars (2004) Space Sci. Rev., 111, pp. 115-181. , doi:10.1023/B:SPAC.0000032717.98679.d0
  • Mazelle, C., Proton cyclotron waves at Mars revisited (2009) Eos. Trans. AGU, 90 (52). , Fall Meet. Suppl., Abstract P11B-1207
  • McPherron, R.L., Russell, C.T., Coleman, P.J., Fluctuating magnetic fields in the magnetosphere, II, ULF waves (1972) Space Sci. Rev., 13, pp. 411-454
  • Neubauer, F.M., Glassmeier, K.H., Coates, A.J., Johnstone, A.D., Low-frequency electromagnetic plasma waves at comet P/Grigg-Skjellerup: Analysis and interpretation (1993) J. Geophys. Res., 98, pp. 20937-20953. , doi:10.1029/93JA02532
  • Ragot, B.R., Distributions of magnetic field orientations in the turbulent solar wind (2006) Astrophysical Journal, 651 (2), pp. 1209-1218. , DOI 10.1086/507783
  • Tsurutani, B., Comets: A laboratory for plasma waves and instabilities (1991) Cometary Plasma Processes, Geophys. Monogr. Ser., 61, pp. 189-209. , edited by A. D. Johnstone, AGU, Washington, D. C
  • Wei, H.Y., Russell, C.T., Proton cyclotron waves at Mars: Exosphere structure and evidence for a fast neutral disk (2006) Geophysical Research Letters, 33 (23), pp. L23103. , DOI 10.1029/2006GL026244
  • Wei, H.Y., Russell, C.T., Zhang, T.L., Blanco-Cano, X., Comparative study of ion cyclotron waves at Mars, Venus and Earth (2010) Planet. Space Sci., , doi:10.1016/j.pss.2010.01.004, in press
  • Zhang, M.H.G., Luhmann, J.G., Nagy, A.F., Spreiter, J.R., Stahara, S.S., Oxygen ionization rates at Mars and Venus: relative contributions of impact ionization and charge exchange (1993) Journal of Geophysical Research, 98 (E2), pp. 3311-3318
  • Zhang, T.L., Initial venus express magnetic field observations of the Venus bow shock location at solar minimum (2008) Planet. Space Sci., 56, pp. 785-789. , doi:10.1016/j.pss.2007.09.012

Citas:

---------- APA ----------
Delva, M., Mazelle, C., Bertucci, C., Volwerk, M., Vörös, Z. & Zhang, T.L. (2011) . Proton cyclotron wave generation mechanisms upstream of Venus. Journal of Geophysical Research: Space Physics, 116(2).
http://dx.doi.org/10.1029/2010JA015826
---------- CHICAGO ----------
Delva, M., Mazelle, C., Bertucci, C., Volwerk, M., Vörös, Z., Zhang, T.L. "Proton cyclotron wave generation mechanisms upstream of Venus" . Journal of Geophysical Research: Space Physics 116, no. 2 (2011).
http://dx.doi.org/10.1029/2010JA015826
---------- MLA ----------
Delva, M., Mazelle, C., Bertucci, C., Volwerk, M., Vörös, Z., Zhang, T.L. "Proton cyclotron wave generation mechanisms upstream of Venus" . Journal of Geophysical Research: Space Physics, vol. 116, no. 2, 2011.
http://dx.doi.org/10.1029/2010JA015826
---------- VANCOUVER ----------
Delva, M., Mazelle, C., Bertucci, C., Volwerk, M., Vörös, Z., Zhang, T.L. Proton cyclotron wave generation mechanisms upstream of Venus. J. Geophys. Res. A. Space Phys. 2011;116(2).
http://dx.doi.org/10.1029/2010JA015826