0 Assigned ID: 7879 ----- Attempting Submission 1 (Wed Sep 23 20:32:50 GMT 2026) ----- Up to 20% of radio-quiet obscured quasars are resolved into two point sources in deep, high-resolution radio observations. Are these sources quasar-driven super-bubbles, produced as a by-product of powerful quasar-driven galactic winds? Or are they signposts of a previously undiscovered population of dual quasars? Here we propose to observe 12 such quasars with Chandra and HST. High-resolution data with Chandra will help us determine if there is one X-ray emitting quasar or two and where they are located with respect to the radio sources. HST observations will unambiguously determine the morphology of the gaseous component and of the young and old stellar components of the host galaxy and reveal any galactic merger signatures expected in dual quasars. PI Dr. Nadia Zakamska and CoIs Dr. Andy Goulding, Dr. Yu-Ching Chen, and Dr. Jack Neustadt are experts on quasars, their host galaxies, and multi-wavelength diagnostics of quasar feedback, including extensive experience with analysis of Chandra and HST data and with identification and characterization of dual quasars. Co-I Dr. Goulding is led the technical design of the Chandra program. PI Zakamska led the technical design of the HST program. CoIs Dr. Alessandra Corsi and Dr. Sarah Burke-Spolaor are experts in extragalactic astrophysics with a particular emphasis on radio interferometry. They are assisting and consulting on interferometric data reduction and analysis, and they have a particular interest in identifying dual and binary supermassive black holes in radio observations. CoI William Zhang reduced archival radio data shown in the proposal, and CoI Natalie Gottschlich is helping with finalizing radio reductions for publications. CoI Jack Neustadt is leading the paper on the radio analysis. Supermassive Black Holes and Active Galaxies 6 false false false false false false false true SECONDARY CHANDRA 28700094 false SUPPORTED J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 J2000 WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475X WFC3/UVIS Imaging No No F763M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475X WFC3/UVIS Imaging No No F763M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F390W WFC3/UVIS Imaging No No F547M WFC3/IR Imaging No No F110W WFC3/UVIS Imaging No No F475X WFC3/UVIS Imaging No No F845M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F845M WFC3/IR Imaging No No F140W WFC3/UVIS Imaging No No F475X WFC3/UVIS Imaging No No F763M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475X WFC3/UVIS Imaging No No F763M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F689M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F775W WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F475W WFC3/UVIS Imaging No No F763M WFC3/IR Imaging No No F125W WFC3/UVIS Imaging No No F390W WFC3/UVIS Imaging No No F621M WFC3/IR Imaging No No F110W