Barred Galaxies: an Observer’s Perspective
Barred Galaxies: an Observer’s Perspective
复制标题
禁止星系:观察者的视角
DOI:
10.1007/978-3-540-75826-6_15
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Gadotti
中科院分区:
文献类型:
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作者:
Gadotti
I review both well established and more recent findings on the properties of bars, and their host galaxies, stemming from photometric and spectroscopic observations, and discuss how these findings can be understood in terms of a global picture of the formation and evolution of bars, keeping a connection with theoretical developments. In particular, I show the results of a detailed structural analysis of≈ 300 barred galaxies in the Sloan Digital Sky Survey, providing physical quantities, such as bar length, ellipticity and boxyness, and bar-to-total luminosity ratio, that can either be used as a solid basis on which realistic models can be built, or be compared against more fundamental theoretical results. I also show correlations that indicate that bars grow longer, thinner and stronger with dynamical age, and that the growth of bars and bulges is connected. Finally, I briefly discuss open questions and possible directions for future research.
DOI:
--
发表时间:
2006
期刊:
Proceedings of the International Astronomical Union
影响因子:
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作者:
D. Gadotti;G. Kauffmann
通讯作者:
G. Kauffmann
DOI:
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发表时间:
1996
期刊:
影响因子:
--
作者:
A. Phillips
通讯作者:
A. Phillips