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arXiv 0908.2966astro-ph.CO
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相互作用HII星系II Zw 40和非相互作用HII星系中的星暴

Starburst in the interacting HII galaxy II Zw 40 and in non-interacting HII galaxies

Eduardo Telles

摘要:

我总结了我们的积分场光谱观测附近的原型HII星系,II Zw 40的结果。观测GMOS-IFU在GEMINI北的光学使我们能够作出详细的运动学图片的中央星暴,而SINFONI与自适应光学的ESO-VLT给了我们一个近红外视图的ISM阶段之间的相互作用。在这里,我也解决的问题,并不是所有的恒星爆发需要一个外部触发,如星系星系遇到,因为它似乎是一小部分低光度HII星系的情况。我们推测,这些可能会像“锅里的爆米花”一样自发地形成恒星。

英文摘要:

I summarize the results of our integral field spectroscopic observations of the nearby prototype of HII galaxies, II Zw 40. Observations with GMOS-IFU on GEMINI-North in the optical allowed us to make a detailed kinematic picture of the central starburst, while SINFONI with adaptive optics on the ESO-VLT gave us a near-IR view of the interplay between the ISM phases. Here, I also address the question that not all starbursts require an external trigger such as a galaxy-galaxy encounter, as it seems to be the case for a fraction of low luminosity HII galaxies. We speculate that these may form stars spontaneously like "pop-corn in a pan".

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。

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