Identifying Rings in IFU Surveys
Gravitational lensings provide unique opportunities to study distant galaxies. Despite their usefulness, only a dozens of gravitational arcs have been reported up-to-date, hampered by the low resolution imaging from ground-based surveys. We propose a novel method to identify Einstein rings/arcs in t...
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Format: | Report |
Language: | unknown |
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arXiv
2017
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Online Access: | https://dx.doi.org/10.48550/arxiv.1711.03094 https://arxiv.org/abs/1711.03094 |
Summary: | Gravitational lensings provide unique opportunities to study distant galaxies. Despite their usefulness, only a dozens of gravitational arcs have been reported up-to-date, hampered by the low resolution imaging from ground-based surveys. We propose a novel method to identify Einstein rings/arcs in the IFU surveys via image subtraction and computer vision techniques. We use the recent discovered strong lens system in the MaNGA survey as a proof-of-concept; in addition to MaNGA, our approach is applicable to other IFU surveys, such as SAMI, CALIFA, Hector, DESI, and 4MOST. : 2 pages, 1 figure, RNAAS accepted |
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