Author

H. J. Brown

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Preprint Oct 2026

Disentangling the assembly of the central and diffuse stellar components in galaxy clusters through dynamical friction and tidal stripping

In galaxy clusters, it is common to conceptually distinguish the central, brightest cluster galaxy (BCG) from the more diffuse intracluster light (ICL). So far, however, this distinction has lacked a clear physical basis, confusing both theoretical and observational studies. We address this by presenting a dynamically...

F. Pearce, S. Bamford, Garreth Martin et al. · 0 citations

Review Oct 2026

Euclid Quick Data Release (Q1). The metallicity of the intracluster light

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

Review Oct 2026

Euclid Quick Data Release (Q1). A systematic study of the intracluster light fraction at 0.2

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