| タイトル | The star-forming history of the young cluster NGC 2264 |
| 著者（英） | Strom, K. M.; Adams, M. T.; Strom, S. E. |
| 著者所属（英） | Kitt Peak National Observatory|Arizona Univ. |
| 発行日 | 1983-12-01 |
| 言語 | eng |
| 内容記述 | UBVRI H-alpha photographic photometry was obtained for a sample of low-mass stars in the young open cluster NGC 2264 in order to investigate the star-forming history of this region. A theoretical H-R diagram was constructed for the sample of probable cluster members. Isochrones and evolutionary tracks were adopted from Cohen and Kuhi (1979). Evidence for a significant age spread in the cluster was found amounting to over ten million yr. In addition, the derived star formation rate as a function of stellar mass suggests that the principal star-forming mass range in NGC 2264 has proceeded sequentially in time from the lowest to the highest masses. The low-mass cluster stars were the first cluster members to form in significant numbers, although their present birth rate is much lower now than it was about ten million yr ago. The star-formation rate has risen to a peak at successively higher masses and then declined. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 84A16248 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/400332 |
|
