arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1002.0815astro-ph.GA
收藏

红外尘埃泡N65环境的多波长研究

The environment of the infrared dust bubble N65: a mutiwavelength study

A. Petriella, S. A. Paron, E. B. Giacani

摘要:

目的:研究红外尘埃泡N65的环境,寻找其周围触发恒星形成的证据。方法:我们对N65周围的区域进行了多波长研究,数据来自大规模调查:两微米全天调查,GLIMPSE,MIPSGAL,SCUBA和GRS。我们分析了N65环境中分子气体和尘埃的分布,并进行了红外测光和点源光谱分析,以寻找年轻恒星和识别电离恒星候选者。结果:我们发现了一个分子云,似乎是沿着N65 PDR分裂成更小的团块。这表明所谓的收集和崩溃过程可能正在发生。几个年轻的恒星物体分布在分子团之间。它们可能代表第二代恒星,其形成是由气泡膨胀成分子气体引发的。我们在N65中发现了O型星,它们是最可靠的电离恒星候选者。

英文摘要:

AIMS: We investigate the environment of the infrared dust bubble N65 and search for evidence of triggered star formation in its surroundings. METHODS: We performed a multiwavelength study of the region around N65 with data taken from large-scale surveys: Two Micron All Sky Survey, GLIMPSE, MIPSGAL, SCUBA, and GRS. We analyzed the distribution of the molecular gas and dust in the environment of N65 and performed infrared photometry and spectral analysis of point sources to search for young stellar objects and identify the ionizing star candidates. RESULTS: We found a molecular cloud that appears to be fragmented into smaller clumps along the N65 PDR. This indicates that the so-called collect and collapse process may be occurring. Several young stellar objects are distributed among the molecular clumps. They may represent a second generation of stars whose formation was triggered by the bubble expanding into the molecular gas. We dentified O-type stars inside N65, which are the most reliable ionizing star candidates.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑