activity
20142019
most citedA New Population of Compton-Thick AGN Identified Using the Spectral Curvature Above 10 keV

120 citations · 464 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2019★ 1 cited

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…

astro-ph.HE2018★ 46 cited

The NuSTAR Extragalactic Surveys: X-ray spectroscopic analysis of the bright hard-band selected sample

L. Zappacosta, A. Comastri, F. Civano +23

We discuss the spectral analysis of a sample of 63 Active Galactic Nuclei (AGN) detected above a limiting flux of keV erg/s/cm in the multi-tiered N…

astro-ph.HE2017★ 35 cited

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…

astro-ph.HE2016★ 66 cited

The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population

G. B. Lansbury, D. Stern, J. Aird +35

We present the first full catalog and science results for the NuSTAR serendipitous survey. The catalog incorporates data taken during the first 40 months of NuSTAR operation, which…

astro-ph.HE2016★ 39 cited

The weak neutral Fe fluorescence line and long-term X-ray evolution of the Compton-thick AGN in NGC 7674

P. Gandhi, A. Annuar, G. B. Lansbury +26

We present X-ray observations of the active galactic nucleus (AGN) in NGC 7674. The source shows a flat X-ray spectrum, suggesting that it is obscured by Compton-thick gas…

astro-ph.HE2016★ 120 cited

A New Population of Compton-Thick AGN Identified Using the Spectral Curvature Above 10 keV

Michael J. Koss, R. Assef, M. Balokovic +18

We present a new metric that uses the spectral curvature (SC) above 10 keV to identify Compton-thick AGN in low-quality Swift BAT X-ray data. Using NuSTAR, we observe nine high SC-…

astro-ph.HE2015★ 74 cited

The NuSTAR Extragalactic Surveys: Overview and Catalog from the COSMOS Field

F. Civano, R. C. Hickox, S. Puccetti +28

To provide the census of the sources contributing to the X-ray background peak above 10 keV, NuSTAR is performing extragalactic surveys using a three-tier "wedding cake" approach.…

astro-ph.HE2014★ 83 cited

NuSTAR unveils a Compton-thick Type 2 quasar in Mrk 34

P. Gandhi, G. B. Lansbury, D. M. Alexander +27

We present Nustar 3-40 keV observations of the optically selected Type 2 quasar (QSO2) SDSS J1034+6001 or Mrk 34. The high-quality hard X-ray spectrum and archival XMM-Newton data…