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arXiv 0901.2879astro-ph.GA
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盘星系间的缩小和环境的作用

Downsizing among disk galaxies and the role of the environment

Giuseppe Gavazzi

摘要:

星系中PopI和PopII指标的研究对我们理解星系演化有着深远的影响。它们现在的比率(z=0)表明星系的恒星形成历史主要取决于它们的整体质量。自1989年以来,路易斯·卡拉斯科和我花了大部分不眠之夜收集本宇宙中星系的H_alpha和近红外表面测光,并将我们大部分的科学生涯集中在这两个指标上,试图说服社区质量是它们演化的关键参数。我们没有成功,直到2004年斯隆团队重新发现了这一现象,并将其命名为“裁员”

英文摘要:

The study of PopI and PopII indicators in galaxies has a profound impact on our understanding of galaxy evolution. Their present (z=0) ratio suggests that the star formation history of galaxies was primarily dictated by their global mass. Since 1989 Luis Carrasco and I spent most of our sleepless nights gathering H_alpha and near infrared surface photometry of galaxies in the local Universe and focused most of our scientific career on these two indicators trying to convince the community that the mass was the key parameter to their evolution. We were unsuccessful, until in 2004 the Sloan team rediscovered this phenomenon and named it "downsizing"

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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