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THE NuSTAR EXTRAGALACTIC SURVEYS: X-RAY SPECTROSCOPIC ANALYSIS OF THE BRIGHT HARD-BAND SELECTED SAMPLE
Sep 16, 2020
Daniel Stern, 2020, "THE NuSTAR EXTRAGALACTIC SURVEYS: X-RAY SPECTROSCOPIC ANALYSIS OF THE BRIGHT HARD-BAND SELECTED SAMPLE", https://doi.org/10.48577/jpl.E56NMC, Astrophysical Journal, JPL Open Repository
We discuss the spectral analysis of a sample of 63 Active Galactic Nuclei (AGN) detected above a limiting ux of S(8 􀀀 24keV) = 7 10􀀀14 erg s􀀀1 cm􀀀2 in the multi-tiered NuSTAR Extragalactic Survey program. The sources span a redshift range z = 0􀀀2:1, and have a median redshif...
A Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event GW190521g
Sep 14, 2020
Daniel Stern, 2020, "A Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational Wave Event GW190521g", https://doi.org/10.48577/jpl.QSISM2, Physical Review Letters, JPL Open Repository
We report the first plausible candidate electromagnetic (EM) counterpart to a binary black hole (BBH) merger. The EM flare is consistent with expectations for a kicked BBH merger in the accretion disk of an active galactic nucleus (AGN) [1], and is unlikely (< O(0.01%)) due to in...
The Unusual Broadband X-ray Spectral Variability of NGC 1313 X-1 seen with XMM-Newton, Chandra and NuSTAR
Sep 14, 2020
Daniel Stern, 2020, "The Unusual Broadband X-ray Spectral Variability of NGC 1313 X-1 seen with XMM-Newton, Chandra and NuSTAR", https://doi.org/10.48577/jpl.62MQVH, Monthly Notices of the Royal Astronomical Society, JPL Open Repository
We present results from the major coordinated X-ray observing program on the ULX NGC1313 X-1 performed in 2017, combining XMM-Newton, Chandra and NuSTAR, fo- cusing on the evolution of the broadband (∼0.3–30.0 keV) continuum emission. Clear and unusual spectral variability is obs...
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