Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/7633
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dc.contributor.authorMazumder, R-
dc.contributor.authorPant, V-
dc.contributor.authorManuel Luna-
dc.contributor.authorBanerjee, D-
dc.date.accessioned2021-02-14T06:04:59Z-
dc.date.available2021-02-14T06:04:59Z-
dc.date.issued2020-01-
dc.identifier.citationAstronomy & Astrophysics, Vol. 633, A12en_US
dc.identifier.issn1432-0746-
dc.identifier.urihttp://hdl.handle.net/2248/7633-
dc.descriptionOpen Access © ESO https://doi.org/10.1051/0004-6361/201936453en_US
dc.description.abstractContext. Longitudinal and transverse oscillations are frequently observed in the solar prominences and/or filaments. These oscillations are excited by a large-scale shock wave, impulsive flares at one leg of the filament threads, or due to any low coronal eruptions. We report simultaneous longitudinal and transverse oscillations in the filament threads of a quiescent region filament. We observe a large filament in the northwest of the solar disk on July 6, 2017. On July 7, 2017, it starts rising around 13:00 UT. We then observe a failed eruption and subsequently the filament threads start to oscillate around 16:00 UT. Aims. We analyse oscillations in the threads of a filament and utilize seismology techniques to estimate magnetic field strength and length of filament threads. Methods. We placed horizontal and vertical artificial slits on the filament threads to capture the longitudinal and transverse oscillations of the threads. Data from Atmospheric Imaging Assembly onboard Solar Dynamics Observatory were used to detect the oscillations. Results. We find signatures of large-amplitude longitudinal oscillations (LALOs). We also detect damping in LALOs. In one thread of the filament, we observe large-amplitude transverse oscillations (LATOs). Using the pendulum model, we estimate the lower limit of magnetic field strength and radius of curvature from the observed parameter of LALOs. Conclusions. We show the co-existence of two different wave modes in the same filament threads. We estimate magnetic field from LALOs and suggest a possible range of the length of the filament threads using LATOs.en_US
dc.language.isoenen_US
dc.publisherEDP Sciencesen_US
dc.subjectSun: oscillationsen_US
dc.subjectSun: filamentsen_US
dc.subjectprominencesen_US
dc.titleSimultaneous longitudinal and transverse oscillations in filament threads after a failed eruptionen_US
dc.typeArticleen_US
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