STATISTICAL GAUSSIAN DISTRIBUTION FUNCTION AS A DISTANCE INDICATOR TO STELLAR GROUPS

H. I. Abdel-Rahman; I. A. Issa; M. A. Sharaf; M. I. Nouh; A. Bakry; A. I. Osman

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STATISTICAL GAUSSIAN DISTRIBUTION FUNCTION AS A DISTANCE INDICATOR TO STELLAR GROUPS KCI 등재 SCOPUS

H. I. Abdel-Rahman, I. A. Issa, M. A. Sharaf, M. I. Nouh, A. Bakry, A. I. Osman

언어ENG
URLhttps://db.koreascholar.com/Article/Detail/385910

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천문학회지 (Journal of The Korean Astronomical Society)

제42권 제4호 (2009.08)
pp.71-79

한국천문학회 (Korean Astronomical Society)

초록

In this paper, statistical distribution functions are developed for distance determination of stellar groups. This method depends on the assumption that absolute magnitudes and apparent magnitudes follow a Gaussian distribution function. Due to the limits of the integrands of the frequency function of apparent and absolute magnitudes, we introduce Case A, B, and C Gaussian distributions. The developed approaches have been implemented to determine distances to some clusters and stellar associations. The comparison with the distances derived by different authors reveals good agreement.

키워드

Distance scales Methods: statistical Galaxies: star clusters Stars: fundamental parameters

저자

H. I. Abdel-Rahman(National Research Institute of Astronomy and Geophysics, Department of Mathematics, Al-Aflag Community college, King Saud Univ.) Corresponding Author
I. A. Issa(National Research Institute of Astronomy and Geophysics)
M. A. Sharaf(Department of Astronomy, Faculty of Science, King Abdul Aziz Univ.)
M. I. Nouh(National Research Institute of Astronomy and Geophysics, Department of Physics, Faculty of Science, Northern Borders Univ.)
A. Bakry(Department of Astronomy, Faculty of Science Al-Azhar Univ.)
A. I. Osman(Department of Astronomy, Faculty of Science Al-Azhar Univ.)

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