Looking for fine structures in galaxies

被引:13
作者
Faundez-Abans, M [1 ]
de Oliveira-Abans, M [1 ]
机构
[1] CNPq, Lab Nacl Astrofis, BR-37500000 Itajuba, MG, Brazil
来源
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1998年 / 128卷 / 02期
关键词
galaxies; ESO; 143-G7; HRG; 54103; NGC; 5193/5193A; 5761; techniques; image processing; mathematical methods;
D O I
10.1051/aas:1998141
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In order to enhance fine structure in direct CCD images of galaxies, transform processing has been employed: working in the transform domain, transform functions have been created and simple high- and low-pass filters have been applied to the images during the process. The results presented herein refer to a test sample of four galaxies: ESO 143-G7, HRG 54103, NGC 5193/5193A, and NGC 5761. It is also discussed the use of a Fourier-hologram image as a transfer function.
引用
收藏
页码:289 / 297
页数:9
相关论文
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