Colour provides key information to constrain the stellar population of the intracluster light (ICL), the diffuse light within galaxy clusters. We derive radial colour profiles ($Y_\mathrm{E}-H_\mathrm{E}$, $J_\mathrm{E}-H_\mathrm{E}$, $I_\mathrm{E}-H_\mathrm{E}$) of the brightest central galaxy (BCG) and ICL for 168 ga...
Euclid Collaboration J. B. Golden-Marx, N. Hatch, S. Bamford et al.· 0 citations
We present a homogeneous analysis of the intracluster light (ICL) in approximately 300 galaxy clusters spanning $0.2<z<1.5$, combining Sunyaev-Zeldovich-selected clusters from the South Pole Telescope and optically selected clusters from Euclid, and comparing results with Hydrangea simulations. We measured the brightes...
Euclid Collaboration H. Gully, N. A. Hatch, H. Gao et al.· 0 citations
The Euclid mission has been designed to provide, as one of its main deliverables, information on the nature of the gravitational interaction, which determines the expansion of the Universe and the formation of structures. Thus, Euclid has the potential to test deviations from general relativity that will allow us to sh...
N. Frusciante, M. Martinelli, L. Lombriser et al.· Astronomy & Astrophysics· 0 citations
An efficient and accurate separation of unresolved point sources from extended objects, usually referred to as star–galaxy separation, is essential for the scientific exploitation of deep wide-field imaging surveys, particularly at faint magnitudes where morphological differences become subtle.
This paper presents a de...
G. Thomas, S. E. Smith, S. Gwyn et al.· Astronomy & Astrophysics· 0 citations
Weak gravitational lensing offers a powerful way to detect galaxy clusters by directly tracing their total matter content. Its effectiveness increases with the density of background galaxies, a requirement that is now being met by the high sensitivity and wide coverage of current large-area surveys. A prime example is...
A. Manjón-García, G. Leroy, S. Pires et al.· 0 citations
In this paper we present cosmological parameter forecasts for the Euclid statistics, which include the galaxy clustering and weak lensing main probes together with previously neglected cross-covariance and cross-correlation signals between imaging-photometric and spectroscopic data. The aim is understanding the impact...
L. Paganin, M. Bonici, C. Carbone et al.· Astronomy & Astrophysics· 0 citations
Stage-IV galaxy surveys will provide the opportunity to test cosmological models and the underlying theory of gravity with unparalleled precision. In this context, it is crucial for the Euclid mission to leverage its spectroscopic and photometric probes to systematically investigate and incorporate non-standard cosmolo...
M.-A. Breton, P. Fosalba, S. Ávila et al.· Astronomy & Astrophysics· 0 citations
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