W
W. W. Zhang
Researcher at Goddard Space Flight Center
Publications - 164
Citations - 14928
W. W. Zhang is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Active galactic nucleus & Pulsar. The author has an hindex of 61, co-authored 152 publications receiving 14027 citations. Previous affiliations of W. W. Zhang include Universities Space Research Association.
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Journal ArticleDOI
The Swift Gamma-Ray Burst Mission
Neil Gehrels,G. Chincarini,G. Chincarini,Paolo Giommi,Keith O. Mason,John A. Nousek,Alan A. Wells,Nicholas E. White,S. D. Barthelmy,David N. Burrows,L. R. Cominsky,Kevin Hurley,F. E. Marshall,Peter Mészáros,Peter W. A. Roming,Lorella Angelini,Lorella Angelini,L. M. Barbier,Tomaso Belloni,Sergio Campana,P. A. Caraveo,M. M. Chester,O. Citterio,T. L. Cline,Mark Cropper,Jay Cummings,Jay Cummings,A. J. Dean,Eric D. Feigelson,E. E. Fenimore,Dale A. Frail,A. S. Fruchter,Gordon P. Garmire,Keith C. Gendreau,Gabriele Ghisellini,Jochen Greiner,Joanne E. Hill,S. D. Hunsberger,Hans A. Krimm,Hans A. Krimm,Shrinivas R. Kulkarni,Pawan Kumar,F. Lebrun,Nicole M. Lloyd-Ronning,Craig B. Markwardt,Craig B. Markwardt,Barbara J. Mattson,Barbara J. Mattson,Richard Mushotzky,Jay P. Norris,J. P. Osborne,Bohdan Paczynski,David Palmer,H.-S. Park,A. M. Parsons,J. A. Paul,Martin J. Rees,Christopher S. Reynolds,James E. Rhoads,T. P. Sasseen,Bradley E. Schaefer,A. Short,Alan P. Smale,Alan P. Smale,Ian Smith,Luigi Stella,Gianpiero Tagliaferri,Tadayuki Takahashi,Makoto Tashiro,Leisa K. Townsley,Jack Tueller,Martin J. L. Turner,M. Vietri,Wolfgang Voges,Martin Ward,Richard Willingale,F. M. Zerbi,W. W. Zhang +77 more
TL;DR: The Swift mission as discussed by the authors is a multi-wavelength observatory for gamma-ray burst (GRB) astronomy, which is a first-of-its-kind autonomous rapid-slewing satellite for transient astronomy and pioneers the way for future rapid-reaction and multiwavelength missions.
Journal ArticleDOI
The Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
Fiona A. Harrison,William W. Craig,Finn Erland Christensen,Charles J. Hailey,W. W. Zhang,Steven E. Boggs,Daniel Stern,W. Rick Cook,Karl Forster,Paolo Giommi,Brian W. Grefenstette,Yunjin Kim,Takao Kitaguchi,Jason E. Koglin,Kristin K. Madsen,Peter H. Mao,Hiromasa Miyasaka,Kaya Mori,M. Perri,Michael J. Pivovaroff,Simonetta Puccetti,Vikram Rana,Niels Jørgen Stenfeldt Westergaard,J. L. Willis,Andreas Zoglauer,Hongjun An,Matteo Bachetti,Nicolas M. Barrière,Eric C. Bellm,Varun Bhalerao,Nicolai Brejnholt,Felix Fuerst,Carl Christian Liebe,Craig B. Markwardt,Melania Nynka,Julia Vogel,Dominic J. Walton,Daniel R. Wik,David M. Alexander,L. R. Cominsky,Ann Hornschemeier,Allan Hornstrup,Victoria M. Kaspi,Greg Madejski,Giorgio Matt,Silvano Molendi,David M. Smith,John A. Tomsick,Marco Ajello,David R. Ballantyne,Mislav Baloković,Diddier Barret,Franz E. Bauer,Roger Blandford,W. Niel Brandt,Laura Brenneman,James Chiang,Deepto Chakrabarty,Jérôme Chenevez,Andrea Comastri,Martin Elvis,Andrew C. Fabian,Duncan Farrah,Chris L. Fryer,Eric V. Gotthelf,Jonathan E. Grindlay,David J. Helfand,Roman Krivonos,David L. Meier,Jon M. Miller,Lorenzo Natalucci,Patrick Ogle,Eran O. Ofek,Andrew Ptak,Stephen P. Reynolds,Jand R. Rigby,Gianpiero Tagliaferri,Stephen E. Thorsett,Ezequiel Treister,C. Megan Urry +79 more
TL;DR: The Nuclear Spectroscopic Telescope Array (NuSTAR) as discussed by the authors is the first focusing high-energy X-ray telescope in orbit, which operates in the band from 3 - 79 keV.
Journal ArticleDOI
An ultraluminous X-ray source powered by an accreting neutron star
Matteo Bachetti,Fiona A. Harrison,Dominic J. Walton,Brian W. Grefenstette,Deepto Chakrabarty,Felix Fürst,Didier Barret,Andrei M. Beloborodov,Steven E. Boggs,Finn Erland Christensen,William W. Craig,A. C. Fabian,C. J. Hailey,Ann Hornschemeier,V. M. Kaspi,Shrinivas R. Kulkarni,Thomas J. Maccarone,Jon M. Miller,Vikram Rana,Daniel Stern,Shriharsh P. Tendulkar,John A. Tomsick,N. A. Webb,W. W. Zhang +23 more
TL;DR: In this article, the authors reported broadband X-ray observations of the nuclear region of the galaxy M82 that reveal pulsations with an average period of 1.37 seconds and a 2.5-day sinusoidal modulation.
Journal ArticleDOI
A rapidly spinning supermassive black hole at the centre of NGC 1365
Guido Risaliti,Fiona A. Harrison,K. K. Madsen,Dominic J. Walton,Steven E. Boggs,Finn Erland Christensen,William W. Craig,William W. Craig,Brian W. Grefenstette,C. J. Hailey,Emanuele Nardini,Daniel Stern,W. W. Zhang +12 more
TL;DR: X-ray observations of NGC 1365 are reported that reveal the relativistic disk features through broadened Fe-line emission and an associated Compton scattering excess of 10–30 kiloelectronvolts.
Journal ArticleDOI
Asymmetries in core-collapse supernovae from maps of radioactive 44Ti in Cassiopeia A.
Brian W. Grefenstette,Fiona A. Harrison,Steven E. Boggs,Stephen P. Reynolds,Chris L. Fryer,K. K. Madsen,Daniel R. Wik,Andreas Zoglauer,C. I. Ellinger,D. M. Alexander,Hongjun An,Didier Barret,Didier Barret,Finn Erland Christensen,Walter Craig,Walter Craig,K. Forster,Paolo Giommi,C. J. Hailey,Allan Hornstrup,V. M. Kaspi,Takao Kitaguchi,Jason E. Koglin,Peter H. Mao,Hiromasa Miyasaka,K. Mori,M. Perri,M. Perri,M. J. Pivovaroff,Simonetta Puccetti,Simonetta Puccetti,Vikram Rana,D. Stern,Niels Jørgen Stenfeldt Westergaard,W. W. Zhang +34 more
TL;DR: The observed spatial distribution rules out symmetric explosions even with a high level of convective mixing, as well as highly asymmetric bipolar explosions resulting from a fast-rotating progenitor, providing strong evidence for the development of low-mode convective instabilities in core-collapse supernovae.