Work

AllBRICQS: the All-sky BRIght, Complete Quasar Survey - Quasar Selection and Final Southern $G_{\rm RP}<16$ Sample

Year: 2026

Type: preprint

Abstract: We describe the final quasar sample from the Southern part of the All-sky BRIght, Complete Quasar Survey (AllBRICQS), which aimed to discover the remaining optically bright quasars using data from Gaia and WISE. We discuss our final selection and present a further 119 quasars in the redshift range $z=[0.03;4.35]$. This brings the sample of spectroscopically confirmed quasars with $G_{\rm RP}<16$ and $z>0.1$ at Dec$<+20^{\circ}$ and Galactic latitude $|b|>10^{\circ}$ to 745 objects. The spectra from the ANU 2.3m telescope at Siding Spring Observatory cover a wavelength range from 360 to 950 nm with $R\sim3000$. For redshifts of $z>0.12$, we expect the sample to be complete at $G_{\rm RP}<16$, a regime that is usually avoided by large spectroscopic surveys due to detector saturation. We note that at least one strongly lensed quasar has escaped our selection.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.34069

Authors: Wolf, Christian, Onken, Christopher A., Hon, Wei Jeat, Lai, Samuel, Tisserand, Patrick, Webster, Rachel

Institutions: Australian National University, The University of Melbourne, Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Sorbonne Université

Language: English

Topic: Galaxies: Formation, Evolution, Phenomena

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Aeronautics and Space Administration, California Institute of Technology, European Space Agency, Australian National University, Jet Propulsion Laboratory, University of California, Los Angeles

OpenAlex ID: W7223967035

Cites: 4

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Related to: 10