IMAGES: A Unique View of the Galaxy Mass Assembly Since z=1

被引：0
|
作者：
Puech, M. [1 ]
Hammer, F. [1 ]
Flores, H. [1 ]
Yang, Y. [1 ]
Neichel, B. [1 ]
机构：
[1] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany
来源：
SCIENCE WITH THE VLT IN THE ELT ERA | 2009年
关键词：
3D SPECTROSCOPY; VLT/GIRAFFE;
D O I：
10.1007/978-1-4020-9190-2_8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Large Program IMAGES is near 2/3 of its completion. It provide,,; us with kinematics (GIRAFFE deployable IFUs), gas chemistry (FORS2), detailed morphologies (HST/ACS) and IR photometry (Spitzer) for a set of 70 galaxies representative of intermediate mass galaxies (M-J <= -20.3 or 1.5 x 10(10) M-circle dot) at z = 0.4-0.75. We discover that, 6 Gyr ago, a significant fraction of galaxies (>= 40%) had anomalous kinematics, i.e. kinematics significantly discrepant from those of rotational or dispersion supported galaxies. The anomalous kinematics cause the observed large dispersion of the Tully-Fisher relation at large distances. IMAGES will soon allow us to study distant galaxies at a level of detail almost comparable to that of nearby galaxies.
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页码：43 / +
页数：2
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