Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …

Abstract Euclid is a European Space Agency medium-class mission selected for launch in
2020 within the cosmic vision 2015–2025 program. The main goal of Euclid is to understand …

Cosmological models with Galileon gravity are an alternative to the standard ΛCDM
paradigm with testable predictions at the level of its self-accelerating solutions for the …

Long range scalar fields with a coupling to matter appear to violate known bounds on
gravitation in the solar system and the laboratory. This is evaded thanks to screening …

The Euclid mission–with its spectroscopic galaxy survey covering a sky area over 15 000
deg 2 in the redshift range 0.9< z< 1.8–will provide a sample of tens of thousands of cosmic …

We present a simple empirical function for the average density profile of cosmic voids,
identified via the watershed technique in Λ CDM N-body simulations. This function is …

We explore voids in dark matter and halo fields from simulations of Λ cold dark matter and
Hu–Sawicki f (R) models. In f (R) gravity, dark matter void abundances are greater than that …

The Novel Probes Project, an initiative to advance the field of astrophysical tests of the dark
sector by creating a forum that connects observers and theorists, is introduced. This review …

ABSTRACT The Cold Spot is a puzzling large-scale feature in the Cosmic Microwave
Background temperature maps and its origin has been subject to active debate. As an …

We have derived estimators for the linear growth rate of density fluctuations using the cross-
correlation function (CCF) of voids and haloes in redshift space. In linear theory, this CCF …