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Automated Detection of Accelerating Solar Eruptions Using Parabolic Hough Transform
West, Matthew J.; Mierla, Marilena; Pant, Vaibhav +3 more
Solar eruptions such as coronal mass ejections (CMEs) observed in the inner solar corona (up to 4 R⊙) show acceleration profiles that appear as parabolic ridges in height-time plots. Inspired by the white-light automated detection algorithms Computer Aided CME Tracking System (CACTus) and Solar Eruptive Events Detection System (SEEDS), …
Segmentation of Coronal Features to Understand the Solar EUV and UV Irradiance Variability III. Inclusion and Analysis of Bright Points
Giono, Gabriel; van der Zwaard, Rens; Kariyappa, Rangaiah +3 more
The study of solar irradiance variability is of great importance in heliophysics, Earth's climate, and space weather applications. These studies require careful identifying, tracking and monitoring of features in the solar photosphere, chromosphere, and corona. Do coronal bright points contribute to the solar irradiance or its variability as input…
Origin of the Solar Rotation Harmonics Seen in the EUV and UV Irradiance
Giono, G.; Zender, J. J.; Kariyappa, R. +1 more
Long-term periodicities in the solar irradiance are often observed with periods proportional to the solar rotational period of 27 days. These periods are linked either to some internal mechanism in the Sun or said to be higher harmonics of the rotation without further discussion of their origin. In this article, the origin of the peaks in periodic…