%0 Generic %1 ostrovski2017discovery %A Ostrovski, Fernanda %A Lemon, Cameron A. %A Auger, Matthew W. %A McMahon, Richard G. %A Fassnacht, Christopher D. %A Chen, Geoff C. F. %A Connolly, Andrew J. %A Koposov, Sergey E. %A Pons, Estelle %A Reed, Sophie L. %A Rusu, Cristian E. %D 2017 %K lense quasar %T The Discovery of a Five-Image Lensed Quasar at z = 3.34 using PanSTARRS and Gaia %U http://arxiv.org/abs/1709.08975 %X We report the discovery, spectroscopic confirmation, and mass modelling of the gravitationally lensed quasar system PS J0630-1201. The lens was discovered by matching a photometric quasar catalogue compiled from Pan-STARRS and WISE photometry to the Gaia DR1 catalogue, exploiting the high spatial resolution of the latter (FWHM $$0.1") to identify the three brightest components of the lens. Follow-up spectroscopic observations with the WHT confirm the multiple objects are quasars at redshift $z_q=3.34$. Further follow-up with Keck AO high-resolution imaging reveals that the system is composed of two lensing galaxies and the quasar is lensed into a $\sim$2.8" separation four-image cusp configuration with a fifth image clearly visible, and a 1.0" arc due to the lensed quasar host galaxy. The system is well-modelled with two singular isothermal ellipsoids, reproducing the position of the fifth image. We discuss future prospects for measuring time delays between the images and constraining any offset between mass and light using the faintly detected Einstein arcs associated with the quasar host galaxy.

@misc{ostrovski2017discovery, abstract = {We report the discovery, spectroscopic confirmation, and mass modelling of the gravitationally lensed quasar system PS J0630-1201. The lens was discovered by matching a photometric quasar catalogue compiled from Pan-STARRS and WISE photometry to the Gaia DR1 catalogue, exploiting the high spatial resolution of the latter (FWHM $\sim $0.1") to identify the three brightest components of the lens. Follow-up spectroscopic observations with the WHT confirm the multiple objects are quasars at redshift $z_{q}=3.34$. Further follow-up with Keck AO high-resolution imaging reveals that the system is composed of two lensing galaxies and the quasar is lensed into a $\sim$2.8" separation four-image cusp configuration with a fifth image clearly visible, and a 1.0" arc due to the lensed quasar host galaxy. The system is well-modelled with two singular isothermal ellipsoids, reproducing the position of the fifth image. We discuss future prospects for measuring time delays between the images and constraining any offset between mass and light using the faintly detected Einstein arcs associated with the quasar host galaxy.}, added-at = {2017-09-27T10:05:42.000+0200}, author = {Ostrovski, Fernanda and Lemon, Cameron A. and Auger, Matthew W. and McMahon, Richard G. and Fassnacht, Christopher D. and Chen, Geoff C. F. and Connolly, Andrew J. and Koposov, Sergey E. and Pons, Estelle and Reed, Sophie L. and Rusu, Cristian E.}, biburl = {https://www.bibsonomy.org/bibtex/28e6f1f7a0772251012bea9c86d0b452b/miki}, description = {[1709.08975] The Discovery of a Five-Image Lensed Quasar at z = 3.34 using PanSTARRS and Gaia}, interhash = {44049e7c78f01879c4ef7b9de1731211}, intrahash = {8e6f1f7a0772251012bea9c86d0b452b}, keywords = {lense quasar}, note = {cite arxiv:1709.08975Comment: Submitted to MNRAS Letters, 5 pages, 3 figures, 4 tables}, timestamp = {2017-09-27T10:05:42.000+0200}, title = {The Discovery of a Five-Image Lensed Quasar at z = 3.34 using PanSTARRS and Gaia}, url = {http://arxiv.org/abs/1709.08975}, year = 2017 }