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Daniel R. Wik
Researcher at University of Utah
Publications - 138
Citations - 8580
Daniel R. Wik is an academic researcher from University of Utah. The author has contributed to research in topics: Galaxy & Galaxy cluster. The author has an hindex of 39, co-authored 132 publications receiving 7707 citations. Previous affiliations of Daniel R. Wik include Ohio University & Goddard Space Flight Center.
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Journal ArticleDOI
The 0.3-30 keV Spectra of Powerful Starburst Galaxies: NuSTAR and Chandra Observations of NGC 3256 and NGC 3310
Bret D. Lehmer,Bret D. Lehmer,J. Tyler,J. Tyler,Ann Hornschemeier,Daniel R. Wik,Daniel R. Wik,Mihoko Yukita,Mihoko Yukita,Vallia Antoniou,S. E. Boggs,Finn Erland Christensen,Walter Craig,Walter Craig,C. J. Hailey,Fiona A. Harrison,Thomas J. Maccarone,Andy Ptak,Daniel Stern,Andreas Zezas,Andreas Zezas,Andreas Zezas,William W. Zhang +22 more
TL;DR: In this article, Chandra and NuSTAR observations of two actively star-forming galaxies within 50 Mpc are presented, NGC 3256 and NGC 3310, which together provide the first-ever spectra of these two galaxies spanning 0.3-30 keV.
Journal ArticleDOI
Spatially resolving a starburst galaxy at hard x-ray energies: NuSTAR, CHANDRA and VLBA observations of NGC 253
Daniel R. Wik,B. Lehmer,Ann Hornschemeier,M. Yukita,Andy Ptak,Andreas Zezas,Vallia Antoniou,Megan Argo,Keith Bechtol,Steven E. Boggs,Finn Erland Christensen,William W. Craig,C. J. Hailey,Fiona A. Harrison,Roman Krivonos,Thomas J. Maccarone,D. Stern,Tonia M. Venters,W. W. Zhang +18 more
TL;DR: In this article, the authors presented the first results concerning the full galaxy from simultaneous NuSTAR, Chandra, and Very Long Baseline Array monitoring of the local starburst galaxy NGC 253.
Journal ArticleDOI
A strong merger shock in abell 665
Sarthak Dasadia,Ming Sun,Craig L. Sarazin,Andrea Morandi,Maxim Markevitch,Daniel R. Wik,Daniel R. Wik,Luigina Feretti,Gabriele Giovannini,Federica Govoni,Valentina Vacca +10 more
TL;DR: In this paper, Chandra observations of Abell 665 have revealed rich structures in this merging galaxy cluster, including a strong shock and two cold fronts, propagating in front of a cold disrupted cloud.
Journal ArticleDOI
NuSTAR Observations of the Powerful Radio-Galaxy Cygnus A
Christopher S. Reynolds,Christopher S. Reynolds,Anne M. Lohfink,Patrick Ogle,Fiona A. Harrison,Kristin K. Madsen,Andrew C. Fabian,Daniel R. Wik,Grzegorz Madejski,David R. Ballantyne,Steven E. Boggs,Finn E. Christensen,William W. Craig,William W. Craig,Felix Fuerst,Charles J. Hailey,Lauranne Lanz,Jon M. Miller,Cristian Saez,Daniel Stern,Dominic J. Walton,William W. Zhang +21 more
TL;DR: In this article, the authors present NuSTAR observations of the powerful radio galaxy Cygnus A, focusing on the central absorbed active galactic nucleus (AGN), which is embedded in a cool core galaxy cluster, and examine archival XMM-Newton data to facilitate the decomposition of the spectrum into the AGN and intracluster medium components.
THE CHANDRA MULTI-WAVELENGTH PROJECT: OPTICAL SPECTROSCOPY AND THE BROADBAND SPECTRAL ENERGY DISTRIBUTIONS OF X-RAY-SELECTED AGNs
Markos Trichas,Paul J. Green,John D. Silverman,Tom Aldcroft,Wayne A. Barkhouse,Robert A. Cameron,Anca Constantin,Sara L. Ellison,Craig B. Foltz,Daryl Haggard,Buell T. Jannuzi,Dong-Woo Kim,Herman L. Marshall,Amy E. Mossman,Laura M. Pérez,Encarni Romero-Colmenero,Ángel Ruiz,Malcolm G. Smith,Paul S. Smith,Guillermo Torres,Daniel R. Wik,Belinda Jane Wilkes,Angie Wolfgang +22 more
TL;DR: In this paper, the authors presented redshifts and classifications for a total of 1569 X-ray sources from a targeted spectroscopic follow-up using the FLWO/1.5 m, SAAO/ 1.9 m, CTIO/ 4 m, KPNO/4 m, Magellan/6.5m, MMT/6 m, and Gemini/8 m telescopes, and from archival Sloan Digital Sky Survey (SDSS) spectroscopy.