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An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
E. Bañados, B. P. Venemans, C. Mazzucchelli +15
Quasars are the most luminous non-transient objects known and as a result they enable studies of the Universe at the earliest cosmic epochs. Despite extensive efforts, however, the…
Heavy X-ray obscuration in the most-luminous galaxies discovered by WISE
F. Vito, W. N. Brandt, D. Stern +11
Hot Dust-Obscured Galaxies (Hot DOGs) are hyperluminous () infrared galaxies with extremely high (up to hundreds of K) dust tempe…
Joint NuSTAR and Chandra analysis of the obscured quasar in IC 2497 - Hanny's Voorwerp system
Lia F. Sartori, Kevin Schawinski, Michael J. Koss +9
We present new Nuclear Spectroscopic Telescope Array (NuSTAR) observations of the core of IC 2497, the galaxy associated with Hanny's Voorwerp. The combined fits of the Chandra (0.…
First NuSTAR Limits on Quiet Sun Hard X-Ray Transient Events
Andrew J. Marsh, David M. Smith, Lindsay Glesener +16
We present the first results of a search for transient hard X-ray (HXR) emission in the quiet solar corona with the \textit{Nuclear Spectroscopic Telescope Array} (\textit{NuSTAR})…
Spectroscopic confirmation and velocity dispersions for twenty Planck galaxy clusters at 0.16<z<0.78
S. Amodeo, S. Mei, S. A. Stanford +8
We present Gemini and Keck spectroscopic redshifts and velocity dispersions for twenty clusters detected via the Sunyaev-Zel'dovich (SZ) effect by the Planck space mission, with es…
An elevation of 0.1 light-seconds for the optical jet base in an accreting Galactic black hole system
Poshak Gandhi, Matteo Bachetti, Vik S. Dhillon +25
Relativistic plasma jets are observed in many accreting black holes. According to theory, coiled magnetic fields close to the black hole accelerate and collimate the plasma, leadin…