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Paper   IPM / Astronomy / 18078
School of Astronomy
  Title:   Imprint of massive neutrinos on Persistent Homology of large-scale structure
  Author(s): 
1.  M.H. Jalali Kanaf
2.  S. Ansarifard
3.  S.M.S. Movahed
  Status:   Published
  Journal: Monthly Notices of the Royal Astronomical Society
  Vol.:  535
  Year:  2024
  Supported by:  IPM
  Abstract:

Exploiting the Persistent Homology technique and its complementary representations, 
we examine the footprint of summed neutrino mass ( image image  ) in the various density fields simulated by the publicly available Quijote suite. The evolution of topological features by utilizing the super-level filtration on three-dimensional density fields at zero redshift, reveals a remarkable benchmark for constraining the cosmological parameters, particularly image image   and image image  . The abundance of independent closed surfaces (voids) compared to the connected components (clusters) and independent loops (filaments), is more sensitive to the presence of image image   for imageimageimage  Mpc image imageimage   irrespective of whether using the total matter density field (image ) or CDM+baryons field (imageimage ). Reducing the degeneracy between image image   and image image   is achieved via Persistent Homology for the image  field but not for the imageimage  field. The uncertainty of image image   at imageimage  confidence interval from the joint analysis of Persistent Homology vectorization for the image  and imageimage  fields smoothed by imageimageimage  Mpc image imageimage   at imageimageimage  reaches imageimageimageimageimageimage  eV and imageimageimageimageimageimage  eV, respectively. Noticing the use of the 3-dimensional underlying density field at imageimageimage , the mentioned uncertainties can be treated as the theoretical lower limits



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