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      • Once you have hmf installed, you can quickly generate a mass function by opening an interpreter (e.g. IPython/Jupyter) and doing: >>> from hmf import MassFunction >>> hmf = MassFunction() >>> mass_func = hmf.dndlnm
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  2. Oct 2, 2023 · To derive halo mass function, the inverse mass cascade can be transformed into a halo random walk in mass space that mimics the random work of particles for diffusion problem.

    • zhijie.xu@pnnl.gov
  3. Without relying on a spherical or ellipsoidal collapse model, we analytically derive the halo mass function and cuspy halo density (inner slope of −4/3) based on the mass and energy...

  4. Feb 24, 2014 · Comparing the excursion set and CUSP (confluent system of peak trajectories) formalisms for the derivation of the halo mass function, we investigate the role of the mass definition in the properties of the multiplicity function of cold dark matter (CDM) haloes.

    • Enric Juan, Eduard Salvador-Solé, Guillem Domènech, Alberto Manrique
    • 2014
  5. Comparing the excursion set and CUSP formalisms for the derivation of the halo mass function, we investigate the role of the mass definition in the properties of the multiplicity function of cold dark matter (CDM) haloes.

  6. Nov 1, 2013 · We have presented HMFcalc, a flexible, efficient and easy to use web application for calculating the dark matter halo mass function (HMF), a fundamental property of cosmological structure formation models.

    • Steven G. Murray, Chris Power, Aaron S. G. Robotham
    • 2013
  7. Feb 21, 2001 · We have derived halo mass functions at from simulations of the τCDM and ΛCDM cosmologies over more than four orders of magnitude in mass, ∼ to ∼ In particular, our two Hubble volume simulations provide the best available predictions for the abundance of the most massive clusters.

  8. Dec 1, 2003 · In summary, we have utilized high-resolution simulations to derive the mass function of dark matter haloes over an extended range in both mass and redshift over previous work. We find that the S–T mass function holds up exceptionally over more than 10 orders of magnitude of M/M *.

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