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THE MASS OF PROGENITORS OF WHITE DWARFTS IN OPEN CLUSTERS
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  • THE MASS OF PROGENITORS OF WHITE DWARFTS IN OPEN CLUSTERS
  • THE MASS OF PROGENITORS OF WHITE DWARFTS IN OPEN CLUSTERS
저자명
LEE. SEE-WOO,SUNG. HWANKYUNG
간행물명
Journal of the Korean astronomical society
권/호정보
1996년|29권 1호|pp.53-62 (10 pages)
발행정보
한국천문학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

31 white dwarfs in 10 open clusters are examined, and their maximum mass and the upper mass limit of their progenitors are obtained as $1.22pm0.02M_{igodot};and;7.2pm0.4M_{igodot}$ respectively, suggesting that the upper mass limit of white dwarfs is less than 8M_{igodot}$ The final mass of white dwarfs shows no clear correlation with the initial mass of their progenitors, and it is found that a deficient gap of initial mass exists between $~4;and;~5.2M_{igodot}$. This gap seems to correspond to the mass range for carbon detonation or deflagration. The total expected numbers of white dwarfs are $11~22$ in Hyades with 7 known white dwarfs and 17 in Praesepe with 8 known white dwarfs. These known white dwrfs are all younger than the others in both clusters. But one known white dwarf in Pleiades is older one among $2~3$ expected white dwarfs.