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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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Deep XMM-Newton Observations of the NW Radio Relic Region of Abell 3667
TL;DR: In this paper, the results of long XMM-Newton X-ray observations of the NW radio relic of Abell 3667 are presented, showing that the gas temperature rises gradually over several arc minutes within the shock region.
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Identification of the Hard X-Ray Source Dominating the E > 25 keV Emission of the Nearby Galaxy M31
Mihoko Yukita,Mihoko Yukita,Andy Ptak,Andy Ptak,Ann Hornschemeier,Ann Hornschemeier,Daniel R. Wik,Daniel R. Wik,Thomas J. Maccarone,Katja Pottschmidt,Katja Pottschmidt,Andreas Zezas,Andreas Zezas,Vallia Antoniou,R. Ballhausen,Bret D. Lehmer,A. Y. Lien,A. Y. Lien,B. J. Williams,Frederick K. Baganoff,P. Boyd,Teruaki Enoto,J. A. Kennea,K. L. Page,Y. Choi +24 more
TL;DR: In this article, the authors reported the identification of a bright hard X-ray source dominating the M31 bulge above 25 kiloelectronvolts from a simultaneous NuSTAR-Swift observation, which was previously detected in the Swift BAT All-Sky Hard X-Ray Survey.
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An ALMA+ACA measurement of the shock in the Bullet Cluster
Luca Di Mascolo,Tony Mroczkowski,Eugene Churazov,Maxim Markevitch,Kaustuv Basu,Tracy Clarke,Mark J. Devlin,Brian Mason,Scott W. Randall,Erik D. Reese,Rashid Sunyaev,Daniel R. Wik +11 more
TL;DR: In this paper, the authors used a parametric model for the Sunyaev-Zeldovich (SZ) effect in the Bullet Cluster (1E0657-56) to characterize the shock properties using deep, high-resolution interferometric SZ effect observations.
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Suzaku X-ray Observations of the Nearest Non- Cool Core Cluster, Antlia: Dynamically Young but with Remarkably Relaxed Outskirts
Ka-Wah Wong,Jimmy A. Irwin,Daniel R. Wik,Daniel R. Wik,Ming Sun,Craig L. Sarazin,Yutaka Fujita,Thomas H. Reiprich +7 more
TL;DR: In this paper, the authors present results of seven Suzaku mosaic observations (>200 ks in total) of the nearest non-cool core cluster, the Antlia Cluster, beyond its degree-scale virial radius (R200 ≈ 887 kpc = 76 ) in its relaxed direction to the east.
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The Galactic Bulge Diffuse Emission in Broad-Band X-rays with NuSTAR
TL;DR: In this paper, the authors used NuSTAR's large aperture for unfocused photons and its broad-band X-ray range to probe the diffuse continuum of the inner ~1-3$^\circ$ of the Galactic bulge.