125 citations · 631 across the 13 of their papers we have counts for
13 papers
The NuSTAR Serendipitous Survey: the 80-month catalog and source properties of the high-energy emitting AGN and quasar population
Claire L. Greenwell, Lizelke Klindt, George B. Lansbury +32
We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipi…
A population of Optically Quiescent Quasars from WISE and SDSS
Claire Greenwell, Poshak Gandhi, Daniel Stern +4
The growth of active galactic nuclei (AGN) occurs under some form of obscuration in a large fraction of the population. The difficulty in constraining this population leads to high…
The Complex X-ray Obscuration Environment in the Radio Loud Type 2 Quasar 3C 223
Stephanie M. LaMassa, Tahir Yaqoob, Panayiotis Tzanavaris +4
3C 223 is a radio loud, Type 2 quasar at with an intriguing XMM-Newton spectrum that implicated it as a rare, Compton-thick ( cm$^…
XMM-Newton and NuSTAR Observations of an Optically Quiescent Quasar
Claire Greenwell, Poshak Gandhi, George Lansbury +3
Optically quiescent quasars (OQQs) represent a recently systematised class of infrared-luminous active galactic nuclei (AGN) which have galaxy-like optical continua. They may repre…
Resolving the cosmic X-ray background with a next-generation high-energy X-ray observatory
R. C. Hickox, F. Civano, D. R. Ballantyne +16
The cosmic X-ray background (CXB), which peaks at an energy of ~30 keV, is produced primarily by emission from accreting supermassive black holes (SMBHs). The CXB therefore serves…
A New Compton-thick AGN in our Cosmic Backyard: Unveiling the Buried Nucleus in NGC 1448 with NuSTAR
A. Annuar, D. M. Alexander, P. Gandhi +22
NGC 1448 is one of the nearest luminous galaxies ( 10) to ours ( 0.00390), and yet the active galactic nucleus (AGN) it hosts was only recent…