Quasars trace the matter distribution out to high redshifts and at large scales, allowing for precise estimates of cosmological parameters as well as tests of fundamental cosmological assumptions. I will present a new all-sky catalog of quasars for cosmology, Quaia, which is based on data from Gaia and unWISE; it samples the largest comoving volume of any existing quasar sample. I will discuss the construction of the catalog and share the results of cosmological analyses from cross-correlations with CMB lensing. Quaia also presents an opportunity to investigate the kinematic dipole; we find a mild tension with the CMB expectation, but we show that, in both Quaia and the quasar catalog CatWISE, the measurement is very dependent on sample and fitting choices and is likely systematics-dominated.
Jonás Chaves Montero, Martine Lokken