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| 題名: | Young stellar population of bright-rimmed clouds BRC 5, BRC 7 and BRC 39 |
| 作者: | 陳文屏;Panwar, Neelam;Chen, W. P.;Pandey, A. K.;Samal, M. R.;Ogura, K.;Ojha, D. K.;Jose, J.;Bhatt, B. C. |
| 貢獻者: | 理學院天文研究所 |
| 關鍵詞: | Astrophysics;Census;Clouds;Implosions;Infrared;Massive stars;Sciences of the Universe;Star & galaxy formation;Star formation;Stars;Stellar populations;Ultraviolet astronomy;Ultraviolet radiation |
| 日期: | 2014-01-01 |
| 上傳時間: | 2026-04-21 14:25:26 (UTC+8) |
| 出版者: | Oxford University Press;London: Oxford University Press |
| 摘要: | 摘要： Bright-rimmed clouds (BRCs), illuminated and shaped by nearby OB stars, are potential sites of recent/ongoing star formation. Here we present an optical and infrared photometric study of three BRCs: BRC 5, BRC 7 and BRC 39 to obtain a census of the young stellar population, thereby inferring the star formation scenario, in these regions. In each BRC, the Class I sources are found to be located mostly near the bright rim or inside the cloud, whereas the Class II sources are preferentially outside, with younger sources closer to the rim. This provides strong support to sequential star formation triggered by radiation-driven implosion due to the ultraviolet radiation. Moreover, each BRC contains a small group of young stars being revealed at its head, as the next-generation stars. In particular, the young stars at the heads of BRC 5 and BRC 7 are found to be intermediate-/high-mass stars, which, under proper conditions, may themselves trigger further star birth, thereby propagating star formation out to long distances.
其他題名： Mon. Not. R. Astron. Soc
出版者： London: Oxford University Press
出版日期： 2014-09-11
出處： Monthly notices of the Royal Astronomical Society, 2014-09, Vol.443 (2), p.1614-1628
資源來源： Alma/SFX Local Collection
版權： 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society 2014
版權： Copyright Oxford University Press, UK Sep 11, 2014
版權： licence_http://creativecommons.org/publicdomain/zero
識別號： ISSN: 0035-8711
識別號： ISSN: 1365-8711
識別號： ISSN: 1365-2966
識別號： EISSN: 1365-2966
識別號： DOI: 10.1093/mnras/stu1244 |
| 顯示於類別: | [天文研究所] 期刊論文
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