Naidoo, Krishna;
Massara, Elena;
Lahav, Ofer;
(2022)
Cosmology and neutrino mass with the minimum spanning tree.
Monthly Notices of the Royal Astronomical Society
, 513
(3)
pp. 3596-3609.
10.1093/mnras/stac1138.
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Abstract
The information content of the minimum spanning tree (MST), used to capture higher order statistics and information from the cosmic web, is compared to that of the power spectrum for a CDM model. The measurements are made in redshift space using haloes from the Quijote simulation of mass ≥ 3.2× 1013, h-1,M⊙ in a box of length Lbox=1h-1, Gpc. The power spectrum multipoles (monopole and quadrupole) are computed for Fourier modes in the range 0.006, hMpc-1< k < 0.5, hMpc-1. For comparison the MST is measured with a minimum length-scale of lmin≃13, h-1, Mpc. Combining the MST and power spectrum allows for many of the individual degeneracies to be broken; on its own the MST provides tighter constraints on the sum of neutrino masses Mν and cosmological parameters h, ns, and
| Type: | Article |
|---|---|
| Title: | Cosmology and neutrino mass with the minimum spanning tree |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stac1138 |
| Publisher version: | https://doi.org/10.1093/mnras/stac1138 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | neutrinos, cosmological parameters, large-scale structure of Universe |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10165840 |
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