Abstract
High-speed streams (HSSs) are believed to be only slightly affected by different interactions on their path from the Sun to Earth and thus the analysis of their observations can provide information on the structure and temporal variations of the magnetic field and plasma parameters at the source region. We have chosen three coronal holes supplying 14 HSSs recorded by Wind in 2008. For each HSS, we have calculated the average magnetic field and plasma parameters as well as power spectral densities (PSDs) of magnetic field fluctuations in the MHD and kinetic ranges to investigate their long- and short-term variations. We suggest that long-term variations are connected with a time evolution of the source region on the time scale of solar rotations. On the other hand, the short-term variations would reflect a longitudinal structure of the coronal hole. Our study reveals that coronal holes are very stable source of HSSs and their temporal evolution on short- and long-time scales is negligible. This is true for the average parameters as well as for the fluctuation power and PSDs. Observed correlations between bulk and/or thermal velocity and PSD parameters are consistent with already published results. We suggest that they do not originate in the source region but they can be mostly attributed to interaction with the ambient slow wind that affects even the HSS core.
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Alexandrova, O.: 2008, Solar wind vs magnetosheath turbulence and Alfvén vortices. Nonlinear Process. Geophys.15, 95. DOI.
Alexandrova, O., Saur, J., Lacombe, C., Mangeney, A., Mitchell, J., Schwartz, S.J., Robert, P.: 2009, Universality of solar-wind turbulent spectrum from MHD to electron scales. Phys. Rev. Lett.103(16), 165003. DOI.
Alexandrova, O., Lacombe, C., Mangeney, A., Grappin, R., Maksimovic, M.: 2012, Solar wind turbulent spectrum at plasma kinetic scales. Astrophys. J.760(2), 121. DOI.
Borovsky, J.E.: 2012, The velocity and magnetic field fluctuations of the solar wind at 1 AU: Statistical analysis of Fourier spectra and correlations with plasma properties. J. Geophys. Res.117, A05104. DOI.
Borovsky, J.E., Denton, M.H., Smith, S.W.: 2019, Some properties of the solar wind turbulence at 1 AU statistically examined in the different types of solar wind plasma. J. Geophys. Res.124, 4. DOI.
Broiles, T.W., Desai, M.I., McComas, D.J.: 2012, Formation, shape, and evolution of magnetic structures in CIRs at 1 AU. J. Geophys. Res.117, A3. DOI.
Bruno, R., Carbone, V.: 2013, The solar wind as a turbulence laboratory. Living Rev. Solar Phys.10, 2. DOI.
Bruno, R., Telloni, D.: 2015, Spectral analysis of magnetic fluctuations at proton scales from fast to slow solar wind. Astrophys. J.2, L17. DOI.
Bruno, R., Trenchi, L., Telloni, D.: 2014, Spectral slope variation at proton scales from fast to slow solar wind. Astrophys. J. Lett.793, L15. DOI.
Bruno, R., Telloni, D., DeIure, D., Pietropaolo, E.: 2017, Solar wind magnetic field background spectrum from fluid to kinetic scales. Mon. Not. Roy. Astron. Soc.472, 1052. DOI.
Chen, C.H.K., Boldyrev, S., Xia, Q., Perez, J.C.: 2013, Nature of subproton scale turbulence in the solar wind. Phys. Rev. Lett.110, 225002. DOI.
Ďurovcová, T., Šafráková, J., Němeček, Z.: 2019, Evolution of relative drifts in the expanding solar wind: Helios observations. Solar Phys.294, 7. DOI.
Gallagher, P.T., Moon, Y.J., Wang, H.: 2002, Active-region monitoring and flare forecasting – I. Data processing and first results. Solar Phys.209, 171. DOI.
Heinemann, S.G., Temmer, M., Hofmeister, S.J., Veronig, A.M., Vennerstrøm, S.: 2018a, Three-phase evolution of a coronal hole. I. 360° remote sensing and in situ observations. Astrophys. J.861, 151. DOI.
Heinemann, S.G., Hofmeister, S.J., Veronig, A.M., Temmer, M.: 2018b, Three-phase evolution of a coronal hole, Part II: The magnetic field. Astrophys. J.863, 29. DOI.
Huang, Z., Madjarska, M., Doyle, G., Lamb, D.: 2012, Evolution of magnetic field corresponding to X-ray brightening events in coronal holes and quiet Sun. Proc. Int. Astron. Union8(S294), 155. DOI.
Kasper, J.C., Lazarus, A.J., Steinberg, J.T., Ogilvie, K.W., Szabo, A.: 2006, Physics-based tests to identify the accuracy of solar wind ion measurements: A case study with the wind Faraday cups. J. Geophys. Res.111, A03105. DOI.
Kiyani, K.H., Osman, K.T., Chapman, S.C.: 2015, Dissipation and heating in solar wind turbulence: From the macro to the micro and back again. Phil. Trans. Roy. Soc. A373, 20140155. DOI.
Kiyani, K.H., Chapman, S.C., Sahraoui, F., Hnat, B., Fauvarque, O., Khotyaintsev, Y.V.: 2013, Enhanced magnetic compressibility and isotropic scale invariance at sub-ion Larmor scales in solar wind turbulence. Astrophys. J.763, 10. DOI.
Koval, A., Szabo, A.: 2013, Magnetic field turbulence spectra observed by the wind spacecraft. AIP Conf. Proc.1539, 211. DOI.
Krista, L.D., Gallagher, P.T.: 2009, Automated coronal hole detection using local intensity thresholding techniques. Solar Phys.256(1–2), 87. DOI.
Leamon, J., Smith, C.W., Ness, N.F., Mattaeus, W.H., Wong, H.K.: 1998, Observational constraints on the dynamics of the interplanetary magnetic field dissipation range. J. Geophys. Res.103, A3. DOI.
Lepping, R.P., Acũna, M.H., Burlaga, L.F., Farrall, W.M., Slavin, J.A., Schatten, K.H., et al.: 1995, The WIND magnetic field investigation. Space Sci. Rev.71, 207. DOI.
Matteini, L., Horbury, T.S., Neugebauer, M., et al.: 2014, Dependence of solar wind speed on the local magnetic field orientation: Role of Alfvénic fluctuations. Geophys. Res. Lett.41(2), 259. DOI.
Ogilvie, K.W., Chornay, D.J., Fritzenreiter, R.J., et al.: 1995, SWE, a comprehensive plasma instrument for the wind spacecraft. Space Sci. Rev.71(1–4), 55. DOI.
Pitňa, A., Šafránková, J., Němeček, Z., Franci, L., Pi, G., Montagud, C.V.: 2019, Characteristics of solar wind fluctuations at and below ion scales. Astrophys. J.879, 82. DOI.
Šafránková, J., Němeček, Z., Němec, F., Verscharen, D., Chen, C.H.K., Ďurovcová, T., Riazantseva, M.O.: 2019, Scale-dependent polarization of solar wind velocity fluctuations at the inertial and kinetic scales. Astrophys. J.870(1), 40. DOI.
Sahraoui, F., Goldstein, M.L., Belmont, G., Canu, P., Rezeau, L.: 2010, Three dimensional anisotropic K spectra of turbulence at subproton scales in the solar wind. Phys. Rev. Lett.105, 131101. DOI.
Sahraoui, F., Huang, S.Y., Belmont, G., Goldstein, M.L., Retinò, A., Robert, P., De Patoul, J.: 2013, Scaling of the electron dissipation range of solar wind turbulence. Astrophys. J. Lett.777, 15. DOI.
Smith, C.W., Hamilton, K., Vasquez, B.J., Leamon, R.J.: 2006, Dependence of the dissipation range spectrum of interplanetary magnetic fluctuations on the rate of energy cascade. Astrophys. J. Lett.645, L85. DOI.
Torrence, C., Compo, G.P.: 1998, A practical guide to wavelet analysis. Bull. Am. Meteorol. Soc.79(1), 61. DOI.
Vasquez, B.J., Smith, C.W., Hamilton, K., MacBride, B.T., Leamon, R.J.: 2007, Evaluation of the turbulent energy cascade rates from the upper inertial range in the solar wind at 1 AU. J. Geophys. Res.112, A7. DOI.
Wang, Y.-M., Sheeley, N.R., Phillips, J.L., Goldstein, B.E.: 1997, Solar wind stream interactions and the wind speed-expansion factor relationship. Astrophys. J.488, L51. DOI.
Zhao, L., Zurbuchen, T.H., Fisk, L.A.: 2009, Global distribution of the solar wind during solar cycle 23: ACE observations. Geophys. Res. Lett.36, L14104. DOI.
Zhou, Y., Matthaeus, W.H., Dmitruk, P.: 2004, Colloquium: Magnetohydrodynamic turbulence and time scales in astrophysical and space plasmas. Rev. Mod. Phys.76, 1015. DOI.
Acknowledgements
The authors acknowledge the Wind team for data use via http://cdaweb.gsfc.nasa.gov/cdaweb/. The present work was supported by the Czech Science Foundation under Contract 19-18993S and by the Ministry of Science and Technology in Taiwan under grant MOST-108-2111-M-008-019.
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Solar Wind at the Dawn of the Parker Solar Probe and Solar Orbiter Era
Guest Editors: Giovanni Lapenta and Andrei Zhukov
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Pi, G., Pitňa, A., Němeček, Z. et al. Long- and Short-Term Evolutions of Magnetic Field Fluctuations in High-Speed Streams. Sol Phys 295, 84 (2020). https://doi.org/10.1007/s11207-020-01646-8
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DOI: https://doi.org/10.1007/s11207-020-01646-8