no code implementations • 8 Feb 2021 • Ryan W. Pfeifle, Claudio Ricci, Peter G. Boorman, Marko Stalevski, Daniel Asmus, Benny Trakhtenbrot, Michael J. Koss, Daniel Stern, Federica Ricci, Shobita Satyapal, Kohei Ichikawa, David J. Rosario, Turgay Caglar, Ezequiel Treister, Meredith Powell, Kyuseok Oh, C. Megan Urry, Fiona Harrison
In this study, we use the SWIFT/BAT AGN sample, which has received extensive multiwavelength follow-up analysis as a result of the BAT AGN Spectroscopic Survey (BASS), to develop a diagnostic for nuclear obscuration by examining the relationship between the line-of-sight column densities ($N_{\rm{H}}$), the 2-10 keV-to-$12\,\rm{\mu m}$ luminosity ratio, and WISE mid-infrared colors.
Astrophysics of Galaxies
no code implementations • 24 Dec 2020 • Federico Marocco, Peter R. M. Eisenhardt, John W. Fowler, J. Davy Kirkpatrick, Aaron M. Meisner, Edward F. Schlafly, S. Adam Stanford, Nelson Garcia, Dan Caselden, Michael C. Cushing, Roc M. Cutri, Jacqueline K. Faherty, Christopher R. Gelino, Anthony H. Gonzalez, Thomas H. Jarrett, Renata Koontz, Amanda Mainzer, Elijah J. Marchese, Bahram Mobasher, David J. Schlegel, Daniel Stern, Harry I. Teplitz, Edward L. Wright
This dataset adds two years to that used for the CatWISE Preliminary Catalog (Eisenhardt et al., 2020), bringing the total to six times as many exposures spanning over sixteen times as large a time baseline as the AllWISE catalog.
Instrumentation and Methods for Astrophysics
no code implementations • 7 Oct 2019 • Maïca Clavel, John A. Tomsick, Jeremy Hare, Roman Krivonos, Kaya Mori, Daniel Stern
The NuSTAR Legacy program 'Unidentified INTEGRAL sources' targeted faint hard X-ray sources revealed by INTEGRAL in the Galactic plane in order to provide conclusive identification of their nature and insights on the population of faint hard X-ray sources.
High Energy Astrophysical Phenomena
1 code implementation • 10 Sep 2014 • Matteo Bachetti, Fiona A. Harrison, Rick Cook, John Tomsick, Christian Schmid, Brian W. Grefenstette, Didier Barret, Steven E. Boggs, Finn E. Christensen, William W. Craig, Andrew C. Fabian, Felix Fürst, Poshak Gandhi, Charles J. Hailey, Erin Kara, Thomas J. Maccarone, Jon M. Miller, Katja Pottschmidt, Daniel Stern, Phil Uttley, Dominic J. Walton, Jörn Wilms, William W. Zhang
The most obvious effect is a distortion of the white noise level in the power density spectrum (PDS) that cannot be modeled easily with the standard techniques due to the variable nature of the dead time.
High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics
