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Calibration of the NuSTAR High-energy Focusing X-ray Telescope.
An, Hongjun; Hailey, Charles J.; Walton, Dominic J. +19 more
We present the calibration of the Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray satellite. We used the Crab as the primary effective area calibrator and constructed a piece-wise linear spline function to modify the vignetting response. The achieved residuals for all off-axis angles and energies, compared to the assumed spectrum, are typical…
XMM-Newton Survey of Local O VII Absorption Lines in the Spectra of Active Galactic Nuclei
Fang, Taotao; Bullock, James; Buote, David +1 more
Highly ionized, z = 0 metal absorption lines detected in the X-ray spectra of background active galactic nuclei (AGNs) provide an effective method to probe the hot (T ∼ 106 K) gas and its metal content in and around the Milky Way. We present an all-sky survey of the {{K}α } transition of the local O vii absorption lines obtai…
Refining the Associations of the Fermi Large Area Telescope Source Catalogs
Smith, Howard A.; Masetti, N.; Jiménez-Bailón, E. +10 more
The Fermi-Large Area Telescope (LAT) First Source Catalog (1FGL) was released in 2010 February and the Fermi-LAT 2-Year Source Catalog (2FGL) appeared in 2012 April, based on data from 24 months of operation. Since they were released, many follow up observations of unidentified γ-ray sources have been performed and new procedures for associating γ…
The WISE Light Curves of Polars
Harrison, Thomas E.; Campbell, Ryan K.
We have extracted the WISE (Wide-field Infrared Survey Explorer) single-exposure data for a sample of 72 polars, which are highly magnetic cataclysmic variables (CVs). We combine these data with both published and unpublished optical and infrared data to explore the origins of the large amplitude variations seen in these systems. In nearly every c…
A Deep XMM-Newton Survey of M33: Point-source Catalog, Source Detection, and Characterization of Overlapping Fields
Williams, Benjamin F.; Blair, William P.; Haberl, Frank +9 more
We have obtained a deep 8 field XMM-Newton mosaic of M33 covering the galaxy out to the D25 isophote and beyond to a limiting 0.2-4.5 keV unabsorbed flux of 5 × 10-16 erg cm-2 s-1 (L \gt 4 × 1034 erg s-1 at the distance of M33). These data allow complete coverage of the galaxy with …
The Swift X-Ray Telescope Cluster Survey. III. Cluster Catalog from 2005-2012 Archival Data
Giavalisco, Mauro; Rosati, Piero; Tozzi, Paolo +6 more
We present the Swift X-ray Cluster Survey (SWXCS) catalog obtained using archival data from the X-ray telescope (XRT) on board the Swift satellite acquired from 2005 February to 2012 November, extending the first release of the SWXCS. The catalog provides positions, soft fluxes, and, when possible, optical counterparts for a flux-limited sample of…