Structural Properties of Early-Type Galaxies from the SDSS DR2
Structural Properties of Early-Type Galaxies from the SDSS DR2
复制标题
SDSS DR2 中早期型星系的结构特性
DOI：
10.1088/1009-9271/8/5/02
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发表时间：
2008-10
期刊：
影响因子：
--
通讯作者：
Xia, Xiao-Yang
中科院分区：
文献类型：
--
作者：
Deng, Zu-Gan;Wu, Hong;Liu, Feng-Shan;Xia, Xiao-Yang
Two-dimensional bulge/disk light decomposition with GIM2D inboth the r- and g-bands has been applied to a sample of 129 early-type galaxies brighter than 13.5 magnitude in the r-band, selected from the Sloan Digital Sky Survey Data Release 2. Intensity-weighted Fourier coefficienta4/awas also derived for each sample galaxy. Our analysis shows that there are correlations between bulge-to-total light ratio (B/T) with bulge Sersic index n B and between bulge and disk scale sizes. Isophotal shape parametera 4/ais not correlated with B/T and nB. Both bulge and disk components satisfy a color-magnitude relation. The κ space Fundamental Plane analysis shows that galaxies with larger B/T tend to lie tighter and closer to the line of κ1 + κ2 =8 (the so-called "zone of avoidance") than the galaxies with smaller B/T. It indicates that existence of the disk component may lead to scatter of the distribution on the Fundamental Plane. Our analysis also shows that κ 1 + κ2 correlates with (g-r) color and B/T, but does not correlate witha 4/afor early-type galaxies. The fitted parameters and other retrieved parameters used in this paper for all sample galaxies are available online.
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影响因子：
4.8
作者：
I. Jørgensen;M. Franx;P. Kjaergaard
通讯作者：
I. Jørgensen;M. Franx;P. Kjaergaard
影响因子：
8.7
作者：
S. Kent
通讯作者：
S. Kent
DOI：
10.1086/172347
发表时间：
1992-05
期刊：
The Astrophysical Journal
影响因子：
--
作者：
M. Weil;L. Hernquist
通讯作者：
M. Weil;L. Hernquist
影响因子：
4.8
作者：
N. Caon;Massimo Capaccioli;M. D’Onofrio
通讯作者：
N. Caon;Massimo Capaccioli;M. D’Onofrio
影响因子：
6.5
作者：
C. K. Young;M. Currie
通讯作者：
C. K. Young;M. Currie