From the 1 of 9 linked papers with an AI index.
9 papers
Radial velocity statistics of cosmic voids as a probe of interacting dark energy
Kin Ho Luo, Ming-chung Chu, Kwan Chuen Chan +1
The paper uses N-body simulations to show that the radial velocity and velocity‑dispersion profiles of cosmic voids change noticeably in a Type‑3 interacting dark‑energy model, mak…
Measuring neutrino mass and asymmetry through galaxy pairwise peculiar velocity
Wangzheng Zhang, Ming-chung Chu, Shihong Liao
Cosmic neutrinos are among the most abundant fermions in the Universe, yet the values of their masses and chemical potentials remain uncertain. In this Letter, we present the first…
PySCo-EFT and ECOSMOG-EFT: a tandem of N-body simulation codes for the Effective Field Theory of Dark Energy
Himanish Ganjoo, Yann Rasera, Emilio Bellini +18
Modified gravity theories constitute viable alternatives to the standard cosmological model for explaining the observed late-time accelerated expansion of the Universe. The Effecti…
Probing the Type 3 interacting dark-energy model using matter pairwise velocity
Kin Ho Luo, Ming-chung Chu, Wangzheng Zhang
Dark sector interactions can be explored via the so-called Type 3 model where dark matter and dark energy exchange momentum only, so as to minimize deviations from the CDM back…
Halo abundance and clustering in cosmologies with massive and asymmetric neutrinos
Yizhou Liu, Wangzheng Zhang, Shihong Liao +1
Neutrinos are the most abundant fermions in the Universe and influence the formation of large-scale structure through both their non-zero masses and a possible chemical potential w…
Refitting cosmological data with neutrino mass and degeneracy
Shek Yeung, Wangzheng Zhang, Ming-chung Chu
A simple and natural extension of the standard Lambda cold dark matter (CDM) model is to allow relic neutrinos to have finite chemical potentials. We confront this CDM…