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A Time Resolved Study of the Broad Line Region in Blazar 3C 454.3
Jedidah C. Isler, C. Megan Urry, Paolo Coppi +6
We present multi-epoch optical observations of the blazar 3C 454.3 (z = 0.859) from 2008 August through 2011 December, using the SMARTS Consortium 1.5m+RCSpectrograph and 1.3m+ANDI…
Finding Rare AGN: XMM-Newton and Chandra Observations of SDSS Stripe 82
Stephanie M. LaMassa, C. Megan Urry, Nico Cappelluti +15
We have analyzed the {\it XMM-Newton} and {\it Chandra} data overlapping 16.5 deg of Sloan Digital Sky Survey Stripe 82, including 4.6 deg of proprietary {\it X…
NuSTAR detection of the blazar B2 1023+25 at redshift 5.3
T. Sbarrato, G. Tagliaferri, G. Ghisellini +19
B2 1023+25 is an extremely radio-loud quasar at z=5.3 which was first identified as a likely high-redshift blazar candidate in the SDSS+FIRST quasar catalog. Here we use the Nuclea…
The NuSTAR Extragalactic Survey: A First Sensitive Look at the High-Energy Cosmic X-ray Background Population
D. M. Alexander, D. Stern, A. Del Moro +31
We report on the first ten identifications of sources serendipitously detected by the NuSTAR to provide the first sensitive census of the cosmic X-ray background (CXB) source popul…
The far emission region of the gamma-ray blazar PKS B1424-418
F. Tavecchio, L. Pacciani, I. Donnarumma +4
We report multi-wavelength (IR-O, UV, X-ray, gamma-ray) data of the flat spectrum radio quasar (FSRQ) PKS B1424-418 (z=1.52) gathered during an active phase in 2013 April . As for…
The Firm Redshift Lower Limit of the Most Distant TeV-Detected Blazar PKS 1424+240
A. Furniss, D. A. Williams, C. Danforth +7
We present the redshift lower limit of z>0.6035 for the very-high-energy (VHE; E>100 GeV) emitting blazar PKS 1424+240 (PG 1424+240). This limit is inferred from Lyman beta and gam…