Extracting Faint Signals Behind Bright Sources From CLASH Imaging Using Fourier Analysis

DOI

10.2991/icadme-15.2015.105How to use a DOI?

Keywords

CLASH, Image processing, Intra-cluster light, Fourier expansion

Abstract

With the combination of deep Hubble Space Telescope Imaging and magnification due to gravitational lensing, the CLASH program offers an unprecedented opportunity to search for supernovae at high redshifts and detect some of the most distant galaxies as well. Unfortunately, the cluster field suffers from a high abundance of bright foreground sources and high background due to intra-cluster light. To overcome these difficulties, we have developed a method of modeling and subtracting bright foreground light in the clusters using Fourier analysis. In this paper, I will present preliminary results based our method, which significantly increases the effective depth of the images, and efficiently characterizes distant background signals in the clusters.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yao Li
AU  - Ding-Peng Li
AU  - Feng-Jie Lei
AU  - Feng-Shan Liu
PY  - 2015/10
DA  - 2015/10
TI  - Extracting Faint Signals Behind Bright Sources From CLASH Imaging Using Fourier Analysis
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 523
EP  - 527
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.105
DO  - 10.2991/icadme-15.2015.105
ID  - Li2015/10
ER  -