Oscillations and Waves in Solar Spicules
By T. V. Zaqarashvili, R. Erdélyi. 2009
175 citations recorded by the source corpus.
Since their discovery, spicules have attracted increased attention as energy/mass bridges between the dense and dynamic photosphere and the tenuous hot solar corona. Mechanical energy of photospheric random and coherent motions can be guided by magnetic field lines, spanning from the interior to the upper parts of the solar atmosphere, in the form of waves and oscillations. Since spicules are one of the most pronounced features of the chromosphere, the energy transport they participate in can be traced by the observations of their oscillatory motions. Oscillations in spicules have been observed for a long time. However the recent high-resolution and high-cadence space and ground based facilities with superb spatial, temporal and spectral capacities brought new aspects in the research of spicule dynamics. Here we review the progress made in imaging and spectroscopic observations of waves and oscillations in spicules. The observations are accompanied by a discussion on theoretical modelling and interpretations of these oscillations. Finally, we embark on the recent developments made on the presence and role of Alfvén and kink waves in spicules. We also address the extensive debate made on the Alfvén versus kink waves in the context of the explanation of the observed transverse oscillations of spicule axes.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/f683800d16c9c8d332137674d9ca7e036d9706ea
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In Astronomy and Astrophysics
Citations in the corpus
- Multiwavelength Studies of MHD Waves in the Solar Chromosphere (2015, background): “…have touched on the manifestation of waves and oscillations in the solar chromosphere, including those that discussed observations of spicules (Zaqarashvili and Erdélyi 2009), filaments (Lin 2011) and moregeneral chromospheric plasma (e.g., Frisch 1972; Bonnet 1981; Narain and Ulmschneider…”
- Solar Fine-Scale Structures. I. Spicules and Other Small-Scale, Jet-Like Events at the Chromospheric Level: Observations and Physical Parameters (2012, background): “Reported observations on oscillatory and wave phenomena in spicules, as well as views and discussions about their interpretation can be found in the recent review by Zaqarashvili and Erdélyi (2009).”
- PROPAGATING WAVES ALONG SPICULES (2011, background): “While there have been earlier reports (from ground-based data) of the presence of transverse waves along spicules (for a review, see Zaqarashvili & Erdélyi 2009), filtergraph observations with the Hinode satellite (Kosugi et al. 2007) for the first time clearly resolved small scale oscillations in…”
- Alfvén Waves in the Solar Atmosphere (2012, background): “Spicules are dynamic, straw-like magnetic structures that are best identified in the Ca II H & K lines, Na D3, Hα and Ca II 8542 Å, and can be divided into two distinct classes (Zaqarashvili & Erdélyi 2009).”