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April 13, 2026Moscow University Physics Bulletin

Brightness Distribution Across the Solar Disk in the Millimeter Range: Observations and Chromospheric Models

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Authors

VNV. G. NagnibedaMLM. A. LoukitchevaNTN. A. Topchilo

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Overview

Observations reveal brightness variations in the solar disk, suggesting insights into chromospheric plasma structure.

Key Points

  • This research aims to understand how brightness varies across the solar disk and correlate it with chromospheric plasma characteristics.
  • Analyzed center-to-limb brightness variation (CLV) curves as a diagnostic tool.
  • Compared observational CLV data with calculated brightness distributions.
  • Utilized modern dynamic inhomogeneous chromospheric models for analysis.
  • Identified a gradual brightening from the disk center to the limb.
  • Confirmed a bright narrow ring at the solar limb due to emissions from the upper chromosphere.
  • Established the solar radio radius as a key parameter related to chromospheric height.

Cite This Study

Nagnibeda et al. (2025) studied this question.

synapsesocial.com/papers/69dc87ea3afacbeac03ea094https://doi.org/10.3103/s0027134925702224
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