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On R-W1 as A Diagnostic to Discover Obscured Active Galactic Nuclei in Wide-Area X-ray Surveys
Stephanie M. LaMassa, Francesca Civano, Marcella Brusa +18
Capitalizing on the all-sky coverage of {\it WISE}, and the 35\% and 50\% sky coverage from SDSS and Pan-STARRS, respectively, we explore the efficacy of (optical) - $m_{3.…
The 31 Deg Release of the Stripe 82 X-ray Survey: The Point Source Catalog
Stephanie M. LaMassa, C. Megan Urry, Nico Cappelluti +23
We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy fiel…
Accretion Rates of Red Quasars from the Hydrogen P line
Dohyeong Kim, Myungshin Im, Eilat Glikman +2
Red quasars are thought to be an intermediate population between merger-driven star-forming galaxies in dust-enshrouded phase and normal quasars. If so, they are expected to have h…
A systematic search for close supermassive black hole binaries in the Catalina Real-Time Transient Survey
Matthew J. Graham, S. G. Djorgovski, Daniel Stern +6
Hierarchical assembly models predict a population of supermassive black hole (SMBH) binaries. These are not resolvable by direct imaging but may be detectable via periodic variabil…
Major Mergers Host the Most Luminous Red Quasars at z ~ 2: A Hubble Space Telescope WFC3/IR Study
Eilat Glikman, Brooke Simmons, Madeline Mailly +3
We used the Hubble Space Telescope WFC3 near-infrared camera to image the host galaxies of a sample of eleven luminous, dust-reddened quasars at z ~ 2 -- the peak epoch of black ho…
A possible close supermassive black-hole binary in a quasar with optical periodicity
Matthew J. Graham, S. George Djorgovski, Daniel Stern +6
Quasars have long been known to be variable sources at all wavelengths. Their optical variability is stochastic, can be due to a variety of physical mechanisms, and is well-describ…