The topology of a weak lensing field in the neighborhood of MS 1054-03

Jun'ichi Sato, Keiichi Umetsu, Toshifumi Futamase, Toru Yamada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We report the first measurement of genus curves for the two-dimensional mass map in the neighborhood of the rich X-ray-luminous galaxy cluster MS 1054-03 at z = 0.83, reconstructed from weak lensing data obtained by Suprime-Cam on the prime focus of the 8.2 m Subaru Telescope. We find that the genus curve measured in the whole survey field deviates from that expected from a random Gaussian field. We show that this non-Gaussianity is induced by the rich cluster in this region and that the genus curve for the region without the cluster is consistent with the prediction for a random Gaussian field. The results demonstrate the feasibility of the genus statistics to examine the non-Gaussianity due to the large-scale structures and to probe the statistical properties of the large-scale clustering.

Original languageEnglish
Pages (from-to)L67-L70
JournalAstrophysical Journal
Volume582
Issue number2 II
DOIs
Publication statusPublished - 2003 Jan 10

Keywords

  • Cosmology: observations
  • Galaxies: clusters: individual (MS 1054-03)
  • Gravitational lensing
  • Large-scale structure of universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Sato, J., Umetsu, K., Futamase, T., & Yamada, T. (2003). The topology of a weak lensing field in the neighborhood of MS 1054-03. Astrophysical Journal, 582(2 II), L67-L70. https://doi.org/10.1086/367717