KiDS+GAMA: Intrinsic alignment model constraints for current and future weak lensing cosmology by Johnston, H, Georgiou, C, Joachimi, B, Hoekstra, H, Chisari, N, Farrow, D, Fortuna, M, Heymans, C, Joudaki, S, Kuijken, K, Wright, A

“…Our results indicate, however, that the modelling of red/blue-split galaxy alignments may be insufficient to describe samples with variable central/satellite galaxy fractions.…”

Caught in the rhythm: how satellites settle into a plane around their central galaxy by Welker, C, Dubois, Y, Pichon, C, Devriendt, J, Chisari, N

“…Using the cosmological hydrodynamics simulation Horizon-AGN, we investigate the spatial distribution of satellite galaxies relative to their central counterpart in the redshift range between 0.3 and 0.8. …”

The dependence of intrinsic alignment of galaxies on wavelength using KiDS and GAMA by Georgiou, C, Johnston, H, Hoekstra, H, Viola, M, Kuijken, K, Joachimi, B, Chisari, N, Farrow, D, Hildebrandt, H, Holwerda, B, Kannawadi, A

“…Separating the sample into central/satellite and red/blue galaxies, we find that the difference is dominated by red satellite galaxies.…”

GAMA+KiDS: Alignment of galaxies in galaxy groups and its dependence on galaxy scale by Georgiou, C, Chisari, N, Fortuna, M, Hoekstra, H, Kuijken, K, Joachimi, B, Vakili, M, Bilicki, M, Dvornik, A, Erben, T, Giblin, B, Heymans, C, Napolitano, N, Shan, H

“…In this work, we measure the alignment of shapes of satellite galaxies, in galaxy groups, with respect to the brightest group galaxy (BGG), as well as alignments of the BGG shape with the satellite positions, using the highly complete Galaxy And Mass Assembly (GAMA) spectroscopic survey and deep imaging from the Kilo Degree Survey. …”