- A STUDY ON ABUNDANCE INDICATOR FOR LATE TYPE DWARFS
- A STUDY ON ABUNDANCE INDICATOR FOR LATE TYPE DWARFS
- ㆍ 저자명
- Lee. Sang-Gak
- ㆍ 간행물명
- 天文學會誌
- ㆍ 권/호정보
- 1983년|16권 2호|pp.55-63 (9 pages)
- ㆍ 발행정보
- 한국천문학회
- ㆍ 파일정보
- 정기간행물|ENG| PDF텍스트
- ㆍ 주제분야
- 기타
From UBVRI photometry and space motion data of 232 late type dwarf stars, it is found that for the stars of (R-I)<0.5, $Delta$(U-B) and $Delta$(B-V) color excesses are correlated with their orbital eccentricities. Therefore, $Delta$(U-B) and $Delta$(B-V) color excesses can be used as possible photometric abundance indicators for the stars of (R-I)<0.5. For the stars of (R-I)${geq}$0.5, the correlation between color excess and orbital eccentricity is not clear. However, it is interesting to note that the high orbital eccentricity stars show some blue deficiencies and these blue deficiencies seem to be correlated with orbital eccentricity.