Reconstruction of Photospheric Velocity Fields from Highly Corrupted Data
Astrophysical Journal, ISSN: 1538-4357, Vol: 933, Issue: 1
2022
- 3Citations
- 4Captures
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Article Description
The analysis of the photospheric velocity field is essential for understanding plasma turbulence in the solar surface, which may be responsible for driving processes such as magnetic reconnection, flares, wave propagation, particle acceleration, and coronal heating. Currently, the only available methods to estimate velocities at the solar photosphere transverse to an observer's line of sight infer flows from differences in image structure in successive observations. Due to data noise, algorithms such as local correlation tracking may lead to a vector field with wide gaps where no velocity vectors are provided. In this paper, a novel method for image inpainting of highly corrupted data is proposed and applied to the restoration of horizontal velocity fields in the solar photosphere. The restored velocity field preserves all the vector field components present in the original field. The method shows robustness when applied to both simulated and observational data.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85133599953&origin=inward; http://dx.doi.org/10.3847/1538-4357/ac6fe4; https://iopscience.iop.org/article/10.3847/1538-4357/ac6fe4; https://dx.doi.org/10.3847/1538-4357/ac6fe4; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=f594d625-66f6-42ce-a77f-bb935c29460c&ssb=19083240934&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.3847%2F1538-4357%2Fac6fe4&ssi=8c436ed8-cnvj-4da8-a437-b4053208f926&ssk=botmanager_support@radware.com&ssm=23725860885165224595575077046066882&ssn=44e44d3f8d26f8cbd04d758fd8d05bcf606c765553ad-d587-4971-81ecc3&sso=99e72a66-0a667121c17af092a51a0915dd6085f2269dccffbc56f433&ssp=07939182881734374151173479309556767&ssq=12068973917010220417470207608114564591373&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwNTliYWMzNmYtYzI0Mi00MmUwLWI4Y2ItNTMzOGQ0YWJiOGIyNS0xNzM0MzcwMjA3OTY2MzY4OTYyNjgzLWFhMWMxODllMjIwNzE2NTE1OTU0NSIsIl9fdXptZiI6IjdmNjAwMGFhYTA4MDc5LTJiNmYtNDMxZS1hYjBiLWIzNTc0MmVlNzM2ZjE3MzQzNzAyMDc5NjYzNjg5NjI2ODMtOWU0YWJlNjVlNjk2YjU2NzU5NTUxIn0=
American Astronomical Society
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