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Forward modeling of propagating slow waves in coronal loops and their frequency-dependent damping

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dc.contributor.author Mandal, Sudip
dc.contributor.author Magyar, N
dc.contributor.author Yuan, D
dc.contributor.author Van Doorsselaere, T
dc.contributor.author Banerjee, D
dc.date.accessioned 2020-11-19T13:56:34Z
dc.date.available 2020-11-19T13:56:34Z
dc.date.issued 2016-03
dc.identifier.citation The Astrophysical Journal, Vol. 820, No. 1, 13 en_US
dc.identifier.issn 0004-637X
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7278
dc.description Restricted Access © The American Astronomical Society http://dx.doi.org/10.3847/0004-637X/820/1/13 en_US
dc.description.abstract Propagating slow waves in coronal loops exhibit a damping that depends upon the frequency of the waves. In this study we aim to investigate the relationship of the damping length ( L d ) with the frequency of the propagating wave. We present a 3D coronal loop model with uniform density and temperature and investigate the frequency- dependent damping mechanism for the four chosen wave periods. We include the thermal conduction to damp the waves as they propagate through the loop. The numerical model output has been forward modeled to generate synthetic images of SDO / AIA 171 and 193 Å channels. The use of forward modeling, which incorporates the atomic emission properties into the intensity images, allows us to directly compare our results with the real observations. The results show that the damping lengths vary linearly with the periods. We also measure the contributions of the emission properties on the damping lengths by using density values from the simulation. In addition to that we have also calculated the theoretical dependence of L d with wave periods and showed that it is consistent with the results we obtained from the numerical modeling and earlier observations. en_US
dc.language.iso en en_US
dc.publisher IOP Publishing en_US
dc.subject Methods: observational en_US
dc.subject Sun: corona en_US
dc.title Forward modeling of propagating slow waves in coronal loops and their frequency-dependent damping en_US
dc.type Article en_US

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