arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0909.4108astro-ph.CO
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环境对砂坝形成的影响

The influence of the environment on bar formation

J. Mendez-Abreu, J. A. L. Aguerri, S. Zarattini, R. Sanchez-Janssen, E. M. Corsini

摘要:

星系的合并和相互作用是可能驱动棒形成的机制。因此,我们可以预期,棒星系的分数增加的局域密度。在这里,我们展示了在不同环境中广泛搜索棒星系的第一个结果。我们的结论是,亮(L>L*)场,室女座,后发座星系团的酒吧分数是兼容的。这些结果指向一个场景,酒吧的形成和/或演变主要取决于内部星系的过程,而不是外部的。

英文摘要:

Galaxy mergers and interactions are mechanisms which could drive the formation of bars. Therefore, we could expect that the fraction of barred galaxies increases with the local density. Here we show the first results of an extensive search for barred galaxies in different environments. We conclude that the bar fraction on bright (L>L*) field, Virgo, and Coma cluster galaxies is compatible. These results point towards an scenario where the formation and/or evolution of bars depend mostly on internal galaxy processes rather than external ones.

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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