Low-mass stars in their core-helium-burning stage define the sharpest feature present in the
color-magnitude diagrams of nearby galaxy systems: the red clump (RC). This feature has …

Galaxy groups are more than an intermediate scale between clusters and halos hosting
individual galaxies, they are crucial laboratories capable of testing a range of astrophysics …

Tidal disruption events (TDEs) are bursts of electromagnetic energy that are released when
supermassive black holes at the centres of galaxies violently disrupt a star that passes too …

Quasars are rapidly accreting supermassive black holes at the centres of massive galaxies.
They display a broad range of properties across all wavelengths, reflecting the diversity in …

The thermal and kinematic Sunyaev-Zel'dovich effects (tSZ, kSZ) probe the thermodynamic
properties of the circumgalactic and intracluster medium (CGM and ICM) of galaxies, groups …

We present the first model-agnostic analysis of the complete set of Sloan Digital Sky Survey
III (BOSS) and-IV (eBOSS) catalogues of luminous red galaxy and quasar clustering in the …

The 21 cm line provides a powerful probe of astrophysics and cosmology at high redshifts,
but unlocking the potential of this probe requires the robust mitigation of foreground …

Every supernova so far observed has been considered to be the terminal explosion of a star.
Moreover, all supernovae with absorption lines in their spectra show those lines decreasing …

We present photometric redshift estimates for galaxies used in the weak lensing analysis of
the Dark Energy Survey Science Verification (DES SV) data. Four model-or machine …

Robust measurements based on current large-scale structure surveys require precise
knowledge of statistical and systematic errors. This can be obtained from large numbers of …