A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly

A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly

We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a quadruply lensed system in a cusp configuration, with a maximum image separation of ∼1.″8. We find that, compared to th...

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Bibliographic Details
Main Authors: Eilat Glikman, Cristian E. Rusu, Geoff C.-F. Chen, James Hung-Hsu Chan, Cristiana Spingola, Hannah Stacey, John McKean, Ciprian T. Berghea, S. G. Djorgovski, Matthew J. Graham, Daniel Stern, Tanya Urrutia, Mark Lacy, Nathan J. Secrest, John M. O’Meara
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Quasars
Strong gravitational lensing
Gravitational lensing
Online Access:https://doi.org/10.3847/1538-4357/aca093

Internet

https://doi.org/10.3847/1538-4357/aca093

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