arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.0768astro-ph.COastro-ph.GA
收藏

比较真实杆和N体杆的光度测量结果

Comparing photometric results of real and N-body bars

E. Athanassoula, D. A. Gadotti, L. Carrasco, A. Bosma, R. E. de Souza, E. Recillas

摘要:

我们比较的光度分析的棒星系的N体模拟与类似的分析结果。测光是在J和Ks波段与CANICA近红外(NIR)相机在2.1米望远镜的天文台Astrofisico吉列尔莫哈罗(OAGH)在卡纳内亚,索诺拉,墨西哥观察到的9个棒星系的样本。比较包括径向椭圆率配置文件和表面亮度(密度的N体星系)配置文件沿酒吧的长轴和短轴。我们发现非常好的协议,认为在银河系内的角动量交换中起着决定性的作用,在酒吧星系的演化。

英文摘要:

We compare the results of the photometrical analysis of barred galaxies with those of a similar analysis from N-body simulations. The photometry is for a sample of nine barred galaxies observed in the J and Ks bands with the CANICA near infrared (NIR) camera at the 2.1-m telescope of the Observatorio Astrofisico Guillermo Haro (OAGH) in Cananea, Sonora, Mexico. The comparison includes radial ellipticity profiles and surface brightness (density for the N-body galaxies) profiles along the bar major and minor axes. We find very good agreement, arguing that the exchange of angular momentum within the galaxy plays a determinant role in the evolution of barred galaxies.

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。

↑