The centers of star formation in NGC 6334 and their stellar mass distributions
The centers of star formation in NGC 6334 and their stellar mass distributions
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NGC 6334 中的恒星形成中心及其恒星质量分布
DOI：
10.1086/191309
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发表时间：
1989
影响因子：
8.7
通讯作者：
P. Mcgregor
中科院分区：
文献类型：
--
作者：
S. Straw;A. R. Hyland;P. Mcgregor
本文介绍了巨H区/分子云复合体NGC 6334中高质量恒星形成活动特定位置的近红外观测结果。观测结果显示，在最近大质量恒星形成的地方周围有许多微弱的红色光源。这些源大多与NGC 6334分子云有关，而不是银河系场源。fir - 1中的红色天体被认为属于一个非常年轻的致密星团，其空间范围约为1%。在FIR-V中，意外地检测到大量的亮红色源，它们在2.3微米处具有CO吸收。有人提出，它们形成了迄今为止未被识别的高亮度主序天体群。在firv中还发现了证据，表明已知的高质量原恒星的分子流出通过与当地星际介质的相互作用引发了中等质量恒星的形成。有证据表明，太阳附近的质量函数值适用于小至1%的恒星形成区域，年龄小于1000万年。参考文献58。
Near-IR observations of specific sites of high-mass star formation activity in the giant H II region/molecular cloud complex NGC 6334 are presented. The observations reveal many faint red sources around the sites of recent high-mass star formation. Most of these sources are associated with the NGC 6334 molecular cloud and are not Galactic field sources. The red objects in FIR-I are identified as belonging to a very young, compact cluster of about 1 pc in spatial extent. In FIR-V an unexpectedly large number of bright red sources are detected which have CO absorption at 2.3 microns. It is proposed that they form a hitherto unrecognized population of high-luminosity premain sequence objects. Evidence is also found in FIR-V that the molecular outflow from the already known high-mass protostar has triggered intermediate-mass star formation via interaction with the local interstellar medium. Evidence is presented that the value of the mass function in the solar neighborhood applies to star formation regions on scales as small as 1 pc and of ages less than 10 million yr. 58 references.