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PMN J1632-0033: A new gravitationally lensed quasar

Joshua N. Winn·Nicholas D. Morgan·Jacqueline N. Hewitt·Christopher S. Kochanek·James E. J. Lovell·Alok R. Patnaik·Bart Pindor·Paul L. Schechter·Robert A. Schommer
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Abstract

We report the discovery of a gravitationally lensed quasar resulting from our survey for lenses in the southern sky. Radio images of PMN J1632-0033 with the VLA and ATCA exhibit two compact, flat-spectrum components with separation 1.47" and flux density ratio 13.2. Images with the HST reveal the optical counterparts to the radio components and also the lens galaxy. An optical spectrum of the bright component, obtained with the first Magellan telescope, reveals quasar emission lines at redshift 3.42. Deeper radio images with MERLIN and the VLBA reveal a faint third radio component located near the center of the lens galaxy, which is either a third image of the background quasar or faint emission from the lens galaxy.

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Joshua N. Winn, Nicholas D. Morgan, Jacqueline N. Hewitt, Christopher S. Kochanek, James E. J. Lovell, Alok R. Patnaik, Bart Pindor, Paul L. Schechter, Robert A. Schommer. 2001-10-10. PMN J1632-0033: A new gravitationally lensed quasar. https://doi.org/10.1086/338094

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