Density and temperature of cosmic-web filaments on scales of tens of megaparsecs

  title={Density and temperature of cosmic-web filaments on scales of tens of megaparsecs},
  author={H. Tanimura and N. Aghanim and V. Bonjean and N. Malavasi and M. Douspis},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
We studied physical properties of matter in 24,544 filaments ranging from 30 to 100 Mpc in length, identified in the Sloan Digital Sky Survey (SDSS). We stacked the Comptonization y map produced by the Planck Collaboration around the filaments, excluding the resolved galaxy groups and clusters above a mass of ~3*10^13 Msun. We detected the thermal Sunyaev-Zel'dovich signal for the first time at a significance of 4.4 sigma in filamentary structures on such a large scale. We also stacked the… Expand
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