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Discovery of eight lensing clusters of galaxies

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Abstract

Clusters of galaxies have a huge mass which can act as gravitational lenses. Galaxies behind clusters can be distorted by the lenses to form arcs in images. Herein a search was done for giant lensed arcs using the SDSS data. By visually inspecting SDSS images of newly identified clusters in the SDSS DR8 and Stripe 82 data, we discover 8 strong lensing clusters together with additional 3 probable and 6 possible cases. The lensed arcs show bluer colors than the member galaxies of clusters. The masses and optical luminosities of galaxy clusters interior to the arcs are calculated. The mass-to-light ratios are found to be in the range of a few tens of M ⊙/L ⊙, consistent with the distribution of previously known lensing clusters.

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Authors and Affiliations

  1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China

    SuMing Liang, ZhongLue Wen, JinLin Han & YunYing Jiang

  2. The University of Chinese Academy of Sciences, Beijing, 100049, China

    SuMing Liang

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  1. SuMing Liang
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  2. ZhongLue Wen
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  3. JinLin Han
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  4. YunYing Jiang
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Correspondence to ZhongLue Wen.

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Liang, S., Wen, Z., Han, J. et al. Discovery of eight lensing clusters of galaxies. Sci. China Phys. Mech. Astron. 57, 1809–1815 (2014). https://doi.org/10.1007/s11433-014-5544-8

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  • DOI: https://doi.org/10.1007/s11433-014-5544-8

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