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Year 2023, , 44 - 53, 21.12.2023

Hikmet Çakmak

https://doi.org/10.26650/PAR.2023.00006

Abstract

References

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A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method

Year 2023, , 44 - 53, 21.12.2023

Hikmet Çakmak

https://doi.org/10.26650/PAR.2023.00006

Abstract

Determining the electron density is a challenging task in solar corona studies, as it requires certain assumptions to be made, such as symmetric, homogeneous and radial distribution, thermal equilibrium, etc. In such studies, the observed 𝐾 corona brightness is based on the coronal electron density. An important paper on the calculation of electron density was published in 1950 by van de Hulst in an article titled “The Electron Density of the Solar Corona”. The author developed a method with some assumptions to calculate the electron density from the observed 𝐾 corona brightness. We presented here, a new simplified calculation method for the coronal electron density is presented. The integral equation solution given by van de Hulst is interpreted from a different perspective and the 𝐾 coronal electron density is calculated using only observational data without making any additional adjustments such as successive approximations and multiple attempts.

Keywords

Sun Corona scattering polarization Astrometry and celestial mechanics eclipses

References

  • Allen C. W., 1946, MNRAS, 106, 137 google scholar
  • Allen C., 1973, Astrophysical Quantities 3rd ed.. Athlone Press, London google scholar
  • Baumbach S., 1937, Astronomische Nachrichten, 263, 121 google scholar
  • Baumbach S., 1938, Astronomische Nachrichten, 267, 273 google scholar
  • Bemporad A., 2020, ApJ, 904, 178 google scholar
  • Çakmak H., 2017, Sol. Phys., 292, 186 google scholar
  • Del Zanna G., et al., 2023, ApJS, 265, 11 google scholar
  • Kulijanishvili V. I., Kapanadze N. G., 2005, Sol. Phys., 229, 45 google scholar
  • Minnaert M., 1930, Z. Astrophys., 1, 209 google scholar
  • Morgan H., Habbal S. R., 2007, A&A, 471, L47 google scholar
  • Newkirk Gordon J., 1967, ARA&A, 5, 213 google scholar
  • Saito K., Makita M., Nishi K., Hata S., 1970, Annals of the Tokyo Astronomical Observatory, 12, 51 google scholar
  • Schuster A., 1879, MNRAS, 40, 35 google scholar
  • von Klüber H., 1958, MNRAS, 118, 201 google scholar
  • van de Hulst H. C., 1950, Bull. Astron. Inst. Netherlands, 11, 135 google scholar
There are 15 citations in total.

Details

Primary Language English
Subjects General Physics
Journal Section Research Articles
Authors

Hikmet Çakmak 0000-0002-1959-6049

Publication Date December 21, 2023
Submission Date June 1, 2023
Published in Issue Year 2023

Cite

APA Çakmak, H. (2023). A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method. Physics and Astronomy Reports, 1(2), 44-53. https://doi.org/10.26650/PAR.2023.00006
AMA Çakmak H. A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method. Physics and Astronomy Reports. December 2023;1(2):44-53. doi:10.26650/PAR.2023.00006
Chicago Çakmak, Hikmet. “A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method”. Physics and Astronomy Reports 1, no. 2 (December 2023): 44-53. https://doi.org/10.26650/PAR.2023.00006.
EndNote Çakmak H (December 1, 2023) A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method. Physics and Astronomy Reports 1 2 44–53.
IEEE H. Çakmak, “A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method”, Physics and Astronomy Reports, vol. 1, no. 2, pp. 44–53, 2023, doi: 10.26650/PAR.2023.00006.
ISNAD Çakmak, Hikmet. “A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method”. Physics and Astronomy Reports 1/2 (December 2023), 44-53. https://doi.org/10.26650/PAR.2023.00006.
JAMA Çakmak H. A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method. Physics and Astronomy Reports. 2023;1:44–53.
MLA Çakmak, Hikmet. “A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method”. Physics and Astronomy Reports, vol. 1, no. 2, 2023, pp. 44-53, doi:10.26650/PAR.2023.00006.
Vancouver Çakmak H. A New Approach to Calculate Coronal Electron Density: Simplified Van De Hulst’s Method. Physics and Astronomy Reports. 2023;1(2):44-53.