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The Korean Astronomical Society (한국천문학회)
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WEAK GRAVITATIONAL LENSING ANALYSIS OF A SAMPLE OF 50 MASSIVE GALAXY CLUSTERS

  • PHRIKSEE, A. (Master Program in Physics, Department of Physics and Materials Science, Chiang Mai University) ;
  • COVONE, G. (Department of Physics, University of Naples "Federico II") ;
  • KOMONJINDA, S. (Astronomical Research Laboratory, Department of Physics and Materials Science, Chiang Mai University) ;
  • SERENO, M. (Department of Physics and Astronomy, University of Bologna)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30
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Abstract

Weak gravitational lensing is an efficient technique for detecting galaxy clusters and probing their mass distribution. We present a weak gravitational lensing analysis of a large sample of galaxy clusters. We have built a nearly complete sample of 50 optically rich clusters, located in the redshift range 0.1 < z < 0.6 and observed in the Canada France Hawaii Telescope Legacy Survey (CFHT-LS). We used weak gravitational lensing to measure, for each galaxy cluster, the density radial profile, the total mass and the mass-to-light ratio (by comparing with the total luminosity of the member galaxies). This project is a preliminary step towards the next analysis of the weak lensing galaxy clusters in the surveys KiDS and VOICE, which are currently collecting data with the VLT Survey Telescope, in Chile.

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References

  1. Allen, S. W, Evrard, A. E., & Mantz, A. B., 2011, Cosmological Parameters from Observations of Galaxy Clusters, ARA&A, 49, 409 https://doi.org/10.1146/annurev-astro-081710-102514
  2. Bahcall, N. A. & Kulier, A., 2014, Tracing Mass and Light in the Universe: Where is the Dark Matter?, MNRAS, 439, 2505 https://doi.org/10.1093/mnras/stu107
  3. Blanton, M. R., et al., 2003, The Galaxy Luminosity Function and Luminosity Density at Redshift z = 0.1, ApJ, 592, 819 https://doi.org/10.1086/375776
  4. Covone, G., Sereno, M., Kilbinger, M., & Cardone, V. F., 2014, Measurement of the Halo Bias from Stacked Shear Profiles of Galaxy Clusters, ApJ 784, L25 https://doi.org/10.1088/2041-8205/784/2/L25
  5. Jing, Y. P. & Suto, Y., 2002, Triaxial Modeling of Halo Density Profiles with High-Resolution N-Body Simulations, ApJ, 574, 538 https://doi.org/10.1086/341065
  6. Navarro, J. F., Frenk, C. S., & White, S. D. M., 1996, The Structure of Cold Dark Matter Halos, ApJ, 462, 563 https://doi.org/10.1086/177173
  7. Oguri, M., Bayliss, M. B., Dahle, H., Sharon, K., Gladders, M. D., Natarajan, P., Hennawi, J. F., & Koester, B. P., 2012, Combined Strong and Weak Lensing Analysis of 28 Clusters from the Sloan Giant Arcs Survey, MNRAS, 420, 3213 https://doi.org/10.1111/j.1365-2966.2011.20248.x
  8. Wen, Z. L., Han, J. L., & Liu, F. S., 2012, A Catalog of 132,684 Clusters of Galaxies Identified from Sloan Digital Sky Survey III, ApJS, 199, 34 https://doi.org/10.1088/0067-0049/199/2/34