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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제38권 제3호
- 발행연도
- 2021.9
- 수록면
- 175 - 183 (9page)
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The dependencies of the chemical element abundances in stellar atmospheres with respect to solar abundances on the second ionization potentials of the same elements were investigated using the published stellar abundance patterns for 1,149 G and K giants in the Local Region of the Galaxy. The correlations between the relative abundances of chemical elements and their second ionization potentials were calculated for groups of stars with effective temperatures between 3,764 and 7,725 K.
Correlations were identified for chemical elements with second ionization potentials of 12.5 eV to 20 eV and for elements with second ionization potentials higher than 20 eV. For the first group of elements, the correlation coefficients were positive for stars with effective temperatures lower than 5,300 K and negative for stars with effective temperatures from 5,300 K to 7,725 K. The results of this study and the comparison with earlier results for hotter stars confirm the variations in these correlations with the effective temperature. A possible explanation for the observed effects is the accretion of hydrogen and helium atoms from the interstellar medium.
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참고문헌 (33)
참고문헌 신청
Asplund M / The chemical make-up of the Sun
Erika Böhm‐Vitense / 2006 / The Puzzle of the Metallic Line Stars / Publications of the Astronomical Society of the Pacific 118(841):419~435
E. Margaret Burbidge / 1957 / Synthesis of the Elements in Stars / Reviews of Modern Physics 29(4):547~650
Castelli F / 2002 / New grids of ATLAS9 model atmospheres / in IAU Symposium 210,
John J. Cowan / 2021 / Origin of the heaviest elements: The rapid neutron-capture process / Reviews of Modern Physics 93(1)
Erika Böhm‐Vitense / 2006 / The Puzzle of the Metallic Line Stars / Publications of the Astronomical Society of the Pacific 118(841):419~435
E. Margaret Burbidge / 1957 / Synthesis of the Elements in Stars / Reviews of Modern Physics 29(4):547~650
Castelli F / 2002 / New grids of ATLAS9 model atmospheres / in IAU Symposium 210,
John J. Cowan / 2021 / Origin of the heaviest elements: The rapid neutron-capture process / Reviews of Modern Physics 93(1)
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