Mass determination of groups of galaxies: Effects of the cosmological constant

@article{Peirani2006MassDO,
  title={Mass determination of groups of galaxies: Effects of the cosmological constant},
  author={S. Peirani and J. A. F. Pacheco},
  journal={New Astronomy},
  year={2006},
  volume={11},
  pages={325-330}
}
  • S. Peirani, J. A. F. Pacheco
  • Published 2006
  • Physics
  • New Astronomy
  • Abstract The spherical infall model first developed by Lemaiˆtre and Tolman was modified in order to include the effects of a dark energy term. The resulting velocity–distance relation was evaluated numerically. This equation, when fitted to actual data, permits the simultaneous evaluation of the central mass and of the Hubble parameter. Application of this relation to the Local Group, when the dark energy is modeled by a cosmological constant, yields a total mass for the M31-Milky Way pair of… CONTINUE READING
    22 Citations

    Figures from this paper

    The observed infall of galaxies towards the Virgo cluster
    • 48
    • PDF
    Weighing the Local Group in the presence of dark energy
    • 24
    • PDF
    A new method to measure the mass of galaxy clusters
    • 28
    • PDF
    The Hubble flow around the Local Group
    • 88
    • PDF

    References

    SHOWING 1-10 OF 35 REFERENCES
    Dynamical models and the mass of the virgo cluster
    • 31
    • Highly Influential
    The Local Group as a test of cosmological models
    • 81
    • Highly Influential
    • PDF
    Structure, mass and distance of the Virgo cluster from a Tolman-Bondi model
    • 75
    • Highly Influential
    • PDF
    The Local Group and Other Neighboring Galaxy Groups
    • 183
    • Highly Influential
    • PDF
    Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
    • 11,914
    • Highly Influential
    • PDF
    The signature of dark energy on the local Hubble flow
    • 44
    • PDF
    Infall of galaxies into the virgo cluster and some cosmological constraints
    • 153
    • Highly Influential