H
Helen E. Mason
Researcher at University of Cambridge
Publications - 180
Citations - 13949
Helen E. Mason is an academic researcher from University of Cambridge. The author has contributed to research in topics: Solar flare & Flare. The author has an hindex of 57, co-authored 170 publications receiving 13100 citations.
Papers
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Evolution of elemental abundances in hot active region cores from Chandrayaan-2 XSM observations
Biswajit Mondal,Santosh V. Vadawale,G. Del Zanna,N. P. S. Mithun,Aveek Sarkar,Helen E. Mason,P. Janardhan,Anil Bhardwaj +7 more
TL;DR: The first ionization potential (FIP) bias of low FIP elements in different coronal structures vary from their photospheric values and may also vary with time as mentioned in this paper .
Journal ArticleDOI
Solar UV and X-Ray Spectral Diagnostics
Giulio Del Zanna,Helen E. Mason +1 more
TL;DR: This review focuses on the optically thin emission from the solar atmosphere, mostly found at UV and X-ray (XUV) wavelengths, and discusses some of the diagnostic methods that have been used to measure electron densities, electron temperatures, differential emission measure (DEM), and relative chemical abundances.
Posted Content
Study of the spatial association between an active region jet and a nonthermal type~${\rm III}$ radio burst.
Sargam M. Mulay,Rohit Sharma,Gherardo Valori,Alberto M. Vásquez,Giulio Del Zanna,Helen E. Mason,Divya Oberoi +6 more
TL;DR: In this article, the spatial location of the active region (AR) jet and its relation with associated nonthermal type-III radio emission was investigated using the Murchison Widefield Array (MWA) radio imaging and spectroscopic data.
Posted Content
Evolution of Elemental Abundances During B-Class Solar Flares: Soft X-ray Spectral Measurements with Chandrayaan-2 XSM
Biswajit Mondal,Aveek Sarkar,Santosh V. Vadawale,N. P. S. Mithun,P. Janardhan,Giulio Del Zanna,Helen E. Mason,Urmila Mitra-Kraev,Shyama Narendranath +8 more
TL;DR: In this paper, the evolution of temperature, emission measure, and absolute elemental abundances of four elements (Mg, Al, Si, and S) during small B-class flares was studied.
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A benchmark study of atomic models for the transition region against quiet Sun observations
TL;DR: In this paper , a set of models which include the three relevant atomic processes listed above in ionisation equilibrium in ionization equilibrium has been built, and an assessment is made of how far down into the solar atmosphere the coronal approximation can be applied and the range over which the new atomic models are valid.