Hot Coronal Loop Oscillations Observed by SUMER: Slow Magnetosonic Wave Damping by Thermal Conduction

By L. Ofman, Tongjiang Wang. 2002

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In Astronomy and Astrophysics

Citations in the corpus

Global sausage modes of coronal loops (2003, background): “The particular examples are global (or standing, with the wave length equal to double the length of the loop) kink modes (Aschwanden et al. 1999; Nakariakov et al. 1999) and standing longitudinal (slow magnetoacoustic) modes (Wang et al. 2002; Ofman & Wang 2002).”
Standing Slow-Mode Waves in Hot Coronal Loops: Observations, Modeling, and Coronal Seismology (2010, background): “However, Ofman & Wang (2002) showed using nonlinear 1D MHD modeling that thermal conduction is the primary dissipation mechanism of the observed large amplitude standing slow-mode waves in hot coronal loops, and the scaling of the dissipation time with period agrees well with the SUMER oscillations.”
Multiwavelength Studies of MHD Waves in the Solar Chromosphere (2015, background): “…of upwardly propagating magnetoacoustic waves with velocities in the range of 70–165 km s−1 and periodicities of 180–420 s (Ofman et al. 1999; Ofman and Wang 2002; De Moortel and Hood 2003, 2004; Mendoza-Briceño et al. 2004; Krishna Prasad et al. 2011, 2012a; Kobanov and Chelpanov 2014;…”
Slow-mode standing waves observed by SUMER in hot coronal loops (2003, background): “…time series with a removal of the background trend, which is taken as a temporal smoothing with a window of∆t = 20 pixels (∼17 min).c) Time profiles of the Fe lineintegrated intensity for cut B, averaged along the slit within the two horizontal lines. waves (Sakurai et al. 2002; Ofman & Wang 2002).”
Hinode observations of transverse waves with flows in coronal loops (2008, methodology): “…of coronal seismology was applied to TRACE and SOHO data (e.g., Nakariakov et al. 1999; Nakariakov & Ofman 2001; Ofman 2002; De Moortel et al. 2002; Ofman & Wang 2002; Ofman & Thompson 2002; Verwichte et al. 2004; Wang & Solanki 2004; Aschwanden 2005), with recent advances (e.g., Ofman 2007; Wang…”
Vertical oscillations of a coronal loop observed by TRACE (2004, methodology): “Later, hot loop oscillations in Doppler shifts with periods on the order of 20 min were detected by the SUMER spectrometer onboard SOHO, and interpreted in terms of the standing slow mode (e.g. Wang et al. 2002, 2003; Ofman & Wang 2002).”
Hot coronal loop oscillations observed with SUMER: Examples and statistics (2003, methodology): “Ofman & Wang (2002) have modeled the oscillations and the damping of slow standing waves in a model coronal loop for parameters typical of those observed by SUMER, and find that due to the high temperature (T > 6 MK) of the loops, the large thermal conduction leads to rapid damping of the slow…”
Magnetohydrodynamic Oscillations in the Solar Corona and Earth’s Magnetosphere: Towards Consolidated Understanding (2016, background): “Decay of the oscillations was shown to be consistent with damping caused by thermal conduction (Ofman and Wang 2002).”
Coronal Waves and Oscillations (2005, background): “Ofman & Wang (2002) identified this mode as the longitudinal (or acoustic) mode.”