Periodicity in the Rotation of the Solar Transition Region and Sunspot Numbers

Sharma, Jaidev; Banerjee, Shyamal Kumar; Singh, Nitin Kumar; Vats, Hari Om

doi:10.1007/s11207-024-02335-6

Sol Phys

2024

DOI: 10.1007/s11207-024-02335-6

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Periodicity in the Rotation of the Solar Transition Region and Sunspot Numbers

Jaidev Sharma,

Shyamal Kumar Banerjee,

Nitin Kumar Singh

et al.

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2024

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Cited by 2 publications

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Comparative Study of Solar Rotation of Transition Region and Corona using Solar Irradiance and Radio Flux

Kumar,

Vats

2024

Sol Phys

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Comparative Study of Solar Rotation of Transition Region and Corona using Solar Irradiance and Radio Flux

Kumar,

Vats

2024

Sol Phys

View full text Add to dashboard Cite

Investigating the Behavior and Spatiotemporal Variations of Green-line Emission in the Solar Corona

Oloketuyi,

Liu,

Deng

et al. 2024

ApJS

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Understanding coronal structure and dynamics can be facilitated by analyzing green-line emission, which enables the investigation of diverse coronal structures such as coronal loops, streamers, coronal holes, and various eruptions in the solar atmosphere. In this study, we investigated the spatiotemporal behaviors of green-line emissions in both low and high latitudes across nine solar cycles, ranging from Solar Cycle 17 to the current Solar Cycle 25, using the modified homogeneous data set. We employed methodologies such as cross correlation, power spectral density, and wavelet transform techniques for this analysis. We found distinct behaviors in green-line energy across various latitudinal distributions in the solar atmosphere. The trends observed at higher latitudes differ from those at lower latitudes. The emission behaviors show a close association with other solar phenomena like solar flares, sunspots, and coronal mass ejections throughout the solar cycles. The observed variations exhibit harmonic periods. The emission activity is significantly higher in the low latitudes, accounting for over 70% of the emissions, while the higher latitudes contribute less than 30%. The emissions exhibit asymmetric behavior between the northern and southern hemispheres, leading to a 44 yr cycle of solar hemispheric dominance shifts. Various factors, such as Alfvén waves, solar magnetic fields, sunspots, differential rotation, and reconnection events, influence the observed differences in behavior between lower and higher latitudes, suggesting the existence of potential underlying phenomena contributing to deviations in properties, intensity, temporal dynamics, and spatiotemporal lifetime.

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Periodicity in the Rotation of the Solar Transition Region and Sunspot Numbers

Cited by 2 publications

References 51 publications

Comparative Study of Solar Rotation of Transition Region and Corona using Solar Irradiance and Radio Flux

Comparative Study of Solar Rotation of Transition Region and Corona using Solar Irradiance and Radio Flux

Investigating the Behavior and Spatiotemporal Variations of Green-line Emission in the Solar Corona

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