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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제37권 제3호
- 발행연도
- 2020.1
- 수록면
- 157 - 163 (7page)
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초록· 키워드
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High resolution spectroscopic observation of V1719 Cyg were made at 1.8 meter telescope of Bohyunsan Optical Astronomy observatory in Korea. Spectral resolving power was R=45,000, signal to noise ratio S/N>100. The abundances of 28 chemical elements from carbon to dysprosium were found with the spectrum synthesis method. The abundances of oxygen, titanium, vanadium and elements with Z>30 are overabundant by 0.2?0.9 dex with respect to the solar values. Correlations of derived abundances with condensation temperatures and second ionization potentials of these elements are discussed. The possible influence of accretion from interstellar environment is not so strong as for ρ Pup and other stars with similar temperatures. The signs of accretion are absent. The comparison of chemical composition with solar system r- & s-process abundance patterns shows the enhancement of the photosphere by s-process elements.
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참고문헌 (30)
참고문헌 신청
Alania I / 1987 / uvby β photometry of V1719 Cyg / Inf. Bull. Var. Stars 2994:1~3
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 / New grids of ATLAS9 model atmospheres
Cowley CR / 1977 / An examination of the planetesimal impact hypothesis of the formation of CP stars / Astrophys. Space Sci 51:349~362
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 / New grids of ATLAS9 model atmospheres
Cowley CR / 1977 / An examination of the planetesimal impact hypothesis of the formation of CP stars / Astrophys. Space Sci 51:349~362
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