Disentangling the cosmic web. I. Morphology of isodensity contours

Jens Schmalzing, Thomas Buchert, Adrian L. Melott, Varun Sahni, B. S. Sathyaprakash, Sergei F. Shandarin

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

We apply Minkowski functionals and various derived measures to decipher the morphological properties of large-scale structure seen in simulations of gravitational evolution. Minkowski functionals of isodensity contours serve as tools to test global properties of the density field. Furthermore, we identify coherent objects at various threshold levels and calculate their partial Minkowski functionals. We propose a set of two derived dimensionless quantities, planarity and filamentarity, which reduce the morphological information in a simple and intuitive way. Several simulations of the gravitational evolution of initial power-law spectra provide a framework for systematic tests of our method.

Original languageEnglish (US)
Pages (from-to)568-578
Number of pages11
JournalAstrophysical Journal
Volume526
Issue number2 PART 1
DOIs
StatePublished - Dec 1 1999

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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